Next gen Xbox GPU specs reportedly leak

A few weeks ago, a website called VGleaks posted up what it claimed were the CPU hardware specifications for the next Xbox console from Microsoft. Now that same website has done it again and posted up what it claims will the hardware behind the console's GPU.

The information claims that the GPU will have a clock speed of 800 MHz. The article lists some of the other GPU hardware stats:

Compute
Shader cores - 12
Instruction issue rate - 12 SCs * 4 SIMDs * 16 threads/clock = 768 ops/clock
FLOPs 768 ops/clock * (1 mul + 1 add) * 800 MHz = 1.2 TFLOPs
Interpolation ( 768 ops/clock / 2 ops ) * 800 MHz = 307.2 Gfloat/sec

Geometry
Triangle rate 2 tri/clock * 800 MHz = 1.6 Gtri/sec
Vertex rate 2 vert/clock * 800 MHz = 1.6 Gvert/sec
Vertex/buffer fetch rate (4 bytes) 4 elements/clock * 12 SCs * 800 MHz = 38.4 Gelement/sec
Vertex/Buffer data rate from cache 38.4 Gelements/sec * 4 bytes = 153.6 GB/sec

Memory
Peak throughput from main RAM 68 GB/sec
Peak throughput from ESRAM 128 bytes/clock * 800 MHz = 102.4 GB/sec
ESRAM size 32 MB
GSM size 64 KB
LSM size 12 SCs * 64 KB = 768 KB
L2 cache size 4 x 128 KB = 512 KB (shared)

Texture
Bilinear fetch rate (4 bytes) 4 fetches/clock * 12 SCs * 800 MHz = 38.4 Gtexels/sec
Bilinear data rate from cache 38.4 Gtexels/sec * 4 bytes = 153.6 GB/sec
L1 cache size 16 KB/SC * 12 SCs = 192 KB (nonshared)

Output
Color/depth blocks 4
Pixel clear rate 1 8×8 tile/clock * 4 DBs * 800 MHz = 204.8 Gpixel/sec
Pixel hierarchical Z cull rate 1 8×8 tile/clock * 4 DBs * 800 MHz = 204.8 Gpixel/sec
Sample Z cull rate 16 /clock * 4 DBs * 800 MHz = 51.2 Gsample/sec
Pixel emit rate 4 /clock * 4 DBs * 800 MHz = 12.8
Gpixel/sec Pixel resolve rate 4 /clock * 4 DBs * 800 MHz = 12.8 Gpixel/sec

The article claims that, among other things, the GPU has 32 MB of embedded SRAM which it believes will not have some of the restrictions that the current Xbox 360 has with EDRAM. The article also says the GPU has a two stage caching system, along with two types of fetch operation. Each of the GPU's shader cores reportedly has its own L1 cache, Local Share Memory and scheduler, plus four SIMD units. In terms of antialiasing, the article claims the GPU supports 2x, 4x and 8x MSAA levels.

If you believe the rumors, the next Xbox GPU is based on a fairly high end Radeon chip from AMD. Microsoft is expected to officially announce the console sometime in the first half of 2013, with a launch in the fall of this year. As we reported last week, Sony is planing to hold a press event on February 20th, where it is expected to officially announce the successor to the Playstation 3.

Source: VGleaks | Image viaVGleaks

Report a problem with article
Previous Story

Raspberry Pi launches $25 version of its PC in Europe

Next Story

Google to offer up $3.14159 million if you can crack Chrome OS

48 Comments

Commenting is disabled on this article.

MS is going to be in big trouble without a technology edge. This generation wasn't so much that the 360 was so good, so much so as how Sony was so bad, Sony repeatedly shot themselves in the foot, giving MS ample chances to tie up the huge dominance Sony had.

One of Sony's biggest mistakes was making a very complicated architecture to code for, some of Sony's devs are still working on games announced close to PS3 launch (Last Guardian, FFVSXIII, etc..). This not only meant that Sony did not have as much software but also that the 360 was perceived as the most powerful system. Numbers don't matter so much as the hundreds of reviews and word of mouth when nearly every multiplatform title came out looking better in 360, and that does have an impact. It's the chicken or the egg dilemma, that impact plants a seed which gives a system a boost, and after that boost it simply gains momentum since people like to play where everyone else is playing.

I have a feeling MS is very unaware of why they had some success with the 360 and might fail miserably with the next xbox.

I'm just wondering, are they going to use good ol' DVDs in X720 or will move to flash, Blu-ray or download model?

I just had a thought, the rumor is that MS will have TWO versions of the next Xbox, one more as a casual, arcade and set-top box with the other being the beefier system for hardcore gaming. For all of those saying these specs are low and so on, what if these are for the lower end box while they can have a faster gpu in the other one.

I don't see why they can't have a higher end version with a , say, 900mhz to 1ghz clocked gpu.

That would be interesting. But I'm not sure what kind of functionality they can add purely based on hardware performance. Perhaps the hardcore version could offer smooth upscaling and better framerates, or something to that effect.

Specs are nice to talk about and for fans to boast on who has what and so on. I'm much more interested in what the games are and what other things the systems can do besides just pump out polygons. I think the fact the Xbox will use ddr3 compared to gddr5 which is better for games but not so much for apps is telling. I'm sure MS set a graphics goal that developers like and that they'll have the perfect mix of hardware needed to do more than just games.

Don't forget that even though this doesn't have that many shaded cores I think they've made a number of tweaks to it overall that you can't compare it to the current 7000 pc gpus we have.

At the end if the Xbox can pull off true multithreading so I can have apps running and also play my game without any performance hit I'd say it's a huge win. I expect we'll seemwinrt apps being sold for the Xbox at some point.

Everyone said the PS3 would out perform the 360 but the games look better on the 360. The PS3 might be more powerful under the hood but when it's hard to develop for it suffers. I have a PS3 and 360 and I will be getting both next gen systems but I think the Nextbox will win.

NoLiMiT06 said,
Everyone said the PS3 would out perform the 360 but the games look better on the 360. The PS3 might be more powerful under the hood but when it's hard to develop for it suffers. I have a PS3 and 360 and I will be getting both next gen systems but I think the Nextbox will win.

You are kidding me right? they are quite equal when it comes to graphical output. However there is a noticable difference between the 2, especially when it comes to PS3 exclusives..
Problem is mainly that it takes years before the developers for playstation gain the experience needed to create fabulous looking games.

just look at the PS2 God Of War which was released around the PS3 release... If you wouldnt know it, you'd thought it was a PS3 game, not PS2

Shadowzz said,
You are kidding me right? they are quite equal when it comes to graphical output.

Actually, many PS3 games run at a lower resolution and have lower graphical fidelity, even now - just look at Black Ops 2. There have also been some high profile issues with performance on the PS3, like with Skyrim. For the most part both consoles are very similar but the X360 tends to have a slightly advantage.

PS - I don't think any console game at the moment can be classed as "fabulous", as they are hugely limited in comparison to PC gaming.

Shadowzz said,

You are kidding me right? they are quite equal when it comes to graphical output.

Nope. This isn't even debatable. Tons of comparison tests over the years show it, but even just looking with your own eyes you can often tell the 360 version will have higher res textures and/or run at higher resolution, often at higher frame rates too.

Hardware wise, it looks like Sony will win in the next generation. Software wise, Microsoft is going to have an edge with D3D11 (mainly tessellation). But even with that, multi-platform titles will most likely look better on the PS4.

There's a rumour that Sony is going to add more RAM to the PS4 which was rumoured to launch with just 4GB. If they add 2 or 4GB of GDDR5 RAM, then that will obviously widen the performance gap. Keep in mind that GDDR5 RAM is twice as fast as DDR3 RAM.

Though GDDR5 is specialized for graphics, of course. DDR3 is still better for general computing, so the gap will not be as wide as the theoretical bandwidth indicates.

Keep in mind that latencies of GDDR5 (a stacked derivative of DDR3) are many times higher than DDR3. Using GDDR5 for the entire system will cause slowdowns in other areas as accessing and reading the data in RAM will be a lot slower, even though it can transfer data a lot faster. The G in GDDR5 also specifies it was designed for graphics, because the texture pools in games are mostly static during rendering.
Besides, all the specs thus far are only rumors, so take this VGleaks site with a grain of salt.
Sony won't win the generation if they release another overpriced game console, like they did with the PS3. FIVE HUNDRED AND NINETYNINE DOLLARS, anyone?
Especially during a recession, such a release would kill them off for good as Sony's already in massive debt and decreased popularity.

GDDR5 is based on DDR3 so no. Using faster memory may not be noticeable for general computing (when a lot of task are on memory this is actually a bit noticeable) but that doesn't mean that using DDR3 is better.

Anaron said,
Hardware wise, it looks like Sony will win in the next generation.

Sony "won" with the current generation too but the X360 still ended up having the best multi-platform versions for the majority of games (obviously excluding PC). That's because Microsoft had the best developer tools and support, as well as a platform that was more similar to the PC. It's why games like GTA4, Skyrim and Call Of Duty run at a lower resolution and/or have more slowdown than the X360 versions.

Hopefully Sony has learnt from the mistakes of its current generation.

All i can say is speed isnt everything. Even tho the PS3 is spec'd better than the 360, game slook better on the 360 and they sell better too. The PS3 is just a glorified blu-ray player. The PS4? Well time will tell. I had the 1st PS and I loved it. I tried the PS2/3 and I just felt the games locked cheap for what they cost.

DirectX is going ot be a huge plus where XBOX will shine.
In Sony's case, overspecing a machine where the devs may not even use that to potential means nothing other than, it will have double the shelf-life.

theyarecomingforyou said,

Hopefully Sony has learnt from the mistakes of its current generation.

I don't think they have, just look at the Vita. It's left for dead and the industry doesn't support it because it is overpriced and out of touch.

It was basically another case of "high numbers" vs practical use. The Cell processor by far had higher floating point performance and could do ray tracing so fast, etc, etc., but it was not so good as a general processor.

All of the next gen consoles have GPU's that support Dx11. WiiU has a modified HD6000 series, both MS and Sony look to be running on HD 7000 series GPUs. If they increase the RAM total as an emegency measure it doesn't speak well to the performance of the rest of the system. Also, it will increase production time to make the change and increase price of the system considerably (GDDR5 is expensive). This knee jerk reaction from Sony makes them less than a safe bet to perform very well by the end of this gen.

Thief000 said,
Keep in mind that latencies of GDDR5 (a stacked derivative of DDR3) are many times higher than DDR3. Using GDDR5 for the entire system will cause slowdowns in other areas as accessing and reading the data in RAM will be a lot slower, even though it can transfer data a lot faster. The G in GDDR5 also specifies it was designed for graphics, because the texture pools in games are mostly static during rendering.
Besides, all the specs thus far are only rumors, so take this VGleaks site with a grain of salt.
Sony won't win the generation if they release another overpriced game console, like they did with the PS3. FIVE HUNDRED AND NINETYNINE DOLLARS, anyone?
Especially during a recession, such a release would kill them off for good as Sony's already in massive debt and decreased popularity.

According to you GPU's should've stuck with DDR3 RAM right
Havent heard so much nonsense piled up in a while, geesh dude

And also Sony is bleeding some cash here and there, don't forget its a massive company, also the playstation division is making profits

You guys bring up some good points. If Sony has learned anything from this generation, it's not to make the development process hard. I'm guessing multi-platform games will look better on the next-gen Xbox simply because of its similarity to PC platform (with D3D11 and a downsized high-end mobile GPU). Speaking of D3D11, Microsoft is definitely going to have the edge with exclusives (at least in terms of technology). The PS4 will most likely use LibGCM or some custom version of OpenGL.

Hardware specs doesn't necessarily mean the games will look better as evidenced by the PS3. Ease of development played a large role in the success of games this generation. With both next-gen consoles being more similar in architecture than this generation, any benefit either one has will be even more important. In the case of Microsoft, they'll have the benefit of D3D11 with features like tessellation and multi-threaded rendering. And in the case of Sony, they'll have a more powerful GPU and faster RAM. Whether or not the better specs (and inferior 3D API) will allow for better-looking games can't be known for sure. We'll just have to wait and see if the PS4 can pull off another Uncharted or Killzone.

Anaron said,
Hardware wise, it looks like Sony will win in the next generation. Software wise, Microsoft is going to have an edge with D3D11 (mainly tessellation). But even with that, multi-platform titles will most likely look better on the PS4
I think that multi-platform titles will look much more similar in the next generation than they did in this one. Sony won't repeat the Cell processor fiasco and both devices should be reasonably easy to program for. With the level of performance both consoles have, I think that even though the PS4 might look more powerful, it won't translate to anything very significant for gamers. Perhaps PS4 exclusives will end up looking better than Xbox 720 exclusives (like they did this gen), but multi-platform titles should largely be the same.

So much fun to be making points out of thin air!

Edited by Andre S., Feb 4 2013, 8:24pm :

Dr_Asik said,
I think that multi-platform titles will look much more similar in the next generation than they did in this one. Sony won't repeat the Cell processor fiasco and both devices should be reasonably easy to program for. With the level of performance both consoles have, I think that even though the PS4 might look more powerful, it won't translate to anything very significant for gamers. Perhaps PS4 exclusives will end up looking better than Xbox 360 exclusives (like they did this gen), but multi-platform titles should largely be the same.

So much fun to be making points out of thin air!


Are you implying that there won't be a difference in image quality for multi-platform games? If so, then I disagree. Assuming the PS4 won't have the PS3's development issues, developers will have more resources available to them. This could easily translate into better performance and/or better overall image quality.

And for the record, what I've said so far is mere conjecture. None of the leaked specs for Durango or Orbis have been confirmed so no one will truly know anything until both consoles are on the market. Who's making points out of thin air?

Who's making points out of thin air?
We all are! Sorry if that looked directed to you.

The reason I think multi-platform titles will look similar is because the differences aren't significant enough for developers to really capitalize on them. Both have essentially the same GPU. There's faster RAM on PS4 but there's more of it on Xbox 720, so by time-space tradeoff that's basically equivalent.

I mean right now PCs are at least 10 times as powerful as the current-gen consoles, yet multi-platform titles usually just run higher-res and with somewhat increased level of detail. And with Xbox 360 and PS3 being such different hardware, devs have usually managed to make games look pretty much identical on both.

I guess your point is valid as well, we won't know until the titles hit the shelves.

theyarecomingforyou said,

Sony "won" with the current generation too but the X360 still ended up having the best multi-platform versions for the majority of games (obviously excluding PC). That's because Microsoft had the best developer tools and support, as well as a platform that was more similar to the PC. It's why games like GTA4, Skyrim and Call Of Duty run at a lower resolution and/or have more slowdown than the X360 versions.

Hopefully Sony has learnt from the mistakes of its current generation.


They won't have. Sony isn't made up of competent developers... A fact they remind us of regularly. They don't know what makes a good development tool any better than my grandmother does.

M_Lyons10 said,
They won't have.
They already did. The Vita SDK was the most amazingly easy and well documented platform SDK ever, and they explicitely stated (I don't recall where) that they would do everything to make the next console as easy to program as possible.

Shadowzz said,

According to you GPU's should've stuck with DDR3 RAM right
Havent heard so much nonsense piled up in a while, geesh dude

Really? You must have missed the part where I said that GDDR was designed for graphics. So why don't we use GDDR5 for system RAM then when DDR3 has been used on graphics cards in the past?
For system purposes you'd rather have RAM that can load things faster but is slow to acces it? I don't think so, especially if there is less RAM than the competition this is NOT good!
DDR3 is much better for system purposes and multitasking with its tight timings. The loading into RAM time may be a bit longer because of the lower data transfer rate, but that's it. In games this will only result in a slightly longer loading time (which most game programmers already circumvent with dynamic loading during cutscenes).

Shadowzz said,

And also Sony is bleeding some cash here and there, don't forget its a massive company, also the playstation division is making profits

Sony's rising debt is now at around $150 Billion (that's like 85% of their asset value).
http://www.wikinvest...stock/S...SNE)/Data/Total_Liabilities
And just the PS3 has attributed more than $5 Billion of that.
Sony's also buying themselves more and more into debt as you can see by their debt to equity ratio.
So NO, the PS division is not making profits with a console and a couple of handhelds that haven't reached expectations and a few of their past financial reports have already proven that. Sony as a whole has made 3 consecutive years of massive losses.

It's most likely a downsized Radeon HD 7970M GPU, just like the PS4. In terms of performance, it's weaker than the Radeon HD 7850 and slightly more powerful than the Radeon HD 7770.

The PS4's GPU is slightly weaker than the Radeon HD 7970M and slightly more powerful than the Radeon HD 7850.

Anaron said,
It's most likely a downsized Radeon HD 7970M GPU, just like the PS4. In terms of performance, it's weaker than the Radeon HD 7850 and slightly more powerful than the Radeon HD 7770.

The PS4's GPU is slightly weaker than the Radeon HD 7970M and slightly more powerful than the Radeon HD 7850.


If you do the math based of the steam processor count (2048 for a 7970)
you end up with 32 Compute Units (shader cores) so it CAN'T be a 7970
The numbers add up to being a 7850 which contains 1024 stream processors
(or 12 shader cores if you do the numbers)
I know you said 7970m but even that one contains 20 shader cores (1280 Stream Processors)
Im not basing this off a single number or calculation but off the overall FLOP & Geometry performance.

Edited by hckngrtfakt, Feb 4 2013, 6:55pm :

Interesting specs. Perhaps the PS4 looks better on paper, but maybe the 720 will excel with devs catering to effective caching.

brent3000 said,
Well that's how this gen turned out... Spec wise the PS3 is greater, but Dev wise the 360 wins hands down

The PS3 never was 'greater' because the design they had wasn't practical enough for a gaming system. It was all hype that IBM made about the Cell CPU and Sony jumped in and realised late in the game that they made - though not completely - a lemon. That's why they shoved a nvidia GPU in.

On paper, the Cell assisting the GPU was technically possible to out do the GPU performance of the 360, but the devs would need to learn to be coding wizards with **** software development kits.

So no, the PS3 was not better than the 360, but if anything, they were pretty close together. I think this race will even be closer as both companies seem to be using similar CPU/GPU setups.

Tony. said,
So no, the PS3 was not better than the 360, but if anything, they were pretty close together. I think this race will even be closer as both companies seem to be using similar CPU/GPU setups.

O'Rly? I always thought the PS3 was on a higher level processing wise over the 360...

There you have it.. Learn something new every day

Kaz Hirai lied, or Sony got scared after rumors started going around that MS was going to release the console directly after E3 in June, like they did with the Xbox 360 Slim.
Both options are poor of Sony.

Nintendo Direct 1.23.2013 That has both companies scrambling to get announcements out to head off What Nintendo has in store for e3. Normally they would have waited until e3 to unveil the systems. Specifically, the Bayonetta 2 announcement, the Project X annoucement, and the announcement of more than one 3rd party collaboration project that will be showcased at e3 along with an unnanounced game that Retro Studios is working on, Super Smash Bros, Zelda, etc being shown off, some in playable form, at e3.

Routerbad said,
Nintendo Direct 1.23.2013 That has both companies scrambling to get announcements out to head off What Nintendo has in store for e3. Normally they would have waited until e3 to unveil the systems. Specifically, the Bayonetta 2 announcement, the Project X annoucement, and the announcement of more than one 3rd party collaboration project that will be showcased at e3 along with an unnanounced game that Retro Studios is working on, Super Smash Bros, Zelda, etc being shown off, some in playable form, at e3.

Microsoft and Nintendo have both said in the past that the are aiming for different type of players in the market, this is why they don't slag each other off.

Sony on the other hand... I hope Sony learned from the their PR lessons from last time.

Also for Sony, I guess they want to get the PS4 specs/info released and not just have some prototype idea they had with the original PS3 that claimed they could do 120fps with dual HDMI etc.

There's that word again. "Heavy." Why are things so heavy in the future? Is there a problem with the Earth's gravitational pull?

NerdyTech said,
There's that word again. "Heavy." Why are things so heavy in the future? Is there a problem with the Earth's gravitational pull?

Its from the movie ease up man