[Definitive] Sony PS3 Thread

By American Ninja
in PlayStation

 Share

Recommended Posts

Experienced

Help

Posted
Posted
To clear up the memory misconceptions:

The Xbox 360 has two kinds of memory:

512MB of GDDR3 memory @ 700mhz - This uses an SGI/Xbox1-like UMA "Unified Memory Architecture" so that both the CPU and GPU can access it directly.  This gives the developer freedom to use that space for textures as well as general program data.

10MB of eDRAM built into the GPU - This serves as the Xbox 360's framebuffer and provides astounding bandwidth and incredibly low-latency access.  This is what will make the 360's uber-Anti Aliasing work.

The PS3 has two kinds of memory, according to the GameSpot article:

256MB of Rambus' XDR memory.  This is apparently for the exclusive use of the CPU.

256MB of GDDR memory @ 700mhz.  This is apparently the framebuffer + texture cache for the GPU.

585930024[/snapback]

GDDR3 @ 700mhz means that it's actually (700mhz * 3) = 2100mhz right?

Veteran

b mitchell

Posted
Posted
How so?  The 360 has more processing power and a vastly superior GPU...

I don't really see where you'd get that idea.

585930127[/snapback]

Design = subjective, however on paper, the PS3 hardware advantage over the Xbox360 ~0. Some cpu advantage, however we don't know real world efficiency for either (and assuming 6 SPE's if one is reserved for OS we have ~192Gflops which compares nicely with ~115Glfops for the Xbox360). If the r500 + EDRAM ends up having a significant advantage over the G70 (and the two seem a generation apart in terms of architecture) than the Xbox360 may v. well have some minimal advantage on the screen.
System Bandwidth Main RAM 25.6GB/s

VRAM 22.4GB/s

RSX 20GB/s (write) + 15GB/s

(read)

SB 2.5GB/s (write) +

2.5GB/s (read)

GPU has 22.5 GB/s to external dram + 35 GB/s to/from CELL.

It seriously lacks bandwith.

I hope G70 is reserving to us some other surprise..

From other forums...

Grand Master

Eli

Posted
Posted

Who cares which one is more powerful by a couple of MB.......let's wait for the games to come out and see which has the better GAMES. That is my decision on my next gen system. Not "512MB or 512MB+" or whatever

Grand Master

OrangeSoul

Posted
Posted

Sony Fact :

256 for the cpu and 256 for the gpu. So gpu is limited to 256mb textures at a time without streaming, xbox360, uses unified memory, so cpu can directly access and modify texture data without any transfering overhead. Also the gpu in xbox360 can fetch direct from cpu cache so it doesn't need to read and write to ram. Overall xbox architecture is much more flexable, games can dynamically adjust how much of the 512mb of ram is used for texture memory.

It's clearly obvious now that nvidia was an after thought and that all sony did was take the off the shelf G70 core and stick in like a videocard in the pc. Hence why the design still depends on GDDR3 not XDR. Also I've heard it's only using 128bit interfaces which is 22.4Gb/s way lower than a 6800ultra so forget any AA with that sort of bandwidth, in actual fact the design is going to be very bandwidth starved.

This topic is now closed to further replies.
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Posts

    • Anthropic pulls Fable 5 and Mythos 5 after US export control order

      By pradeepviswav · Posted

      Anthropic pulls Fable 5 and Mythos 5 after US export control order by Pradeep Viswanathan In April this year, Anthropic launched the Claude Mythos Preview frontier model with state-of-the-art cyber and coding capabilities for a select set of companies around the world. After preparing appropriate guardrails, early this week, Anthropic launched Claude Fable 5 and Mythos 5, its most capable AI models. Claude Fable 5 is for general users and comes with strict safeguards, while Mythos 5 is designed with fewer safeguards for cybersecurity and biology use cases. Today, Anthropic abruptly suspended access to its Fable 5 and Mythos 5 AI models for all customers after receiving an export control directive from the US government. The company received the directive from the government today at 5:21 p.m. ET, and the received letter did not provide any details regarding the national security concern. Anthropic understands that the government became aware of a method to bypass, or “jailbreak,” Fable 5, which might be the reason behind the directive. The order was issued under national security authorities and requires the company to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether they are inside or outside the United States. The restriction also applies to foreign national employees working at Anthropic. As a result, the company has disabled both models for all customers to ensure compliance. Access to previous Anthropic models like Opus and Sonnet is not affected by this government order. The company highlighted that it had developed strong safeguards to reduce the possibility that Fable is misused for tasks related to cybersecurity. In fact, many developers are complaining that the safeguards are going overboard. Additionally, the company worked with the US government, the UK AISI, multiple private third-party organizations, and internal teams to red-team Fable’s safeguards for thousands of hours. Finally, Anthropic noted that no testers have yet been able to find a universal jailbreak on Fable 5. As expected, Anthropic disagrees that a narrow potential jailbreak should lead to the recall of a commercial model used by hundreds of millions of people. It warned that applying this standard across the AI industry could effectively halt new frontier model deployments. Anthropic concluded by mentioning that it is working to restore access to Fable 5 and Mythos 5 as soon as possible and plans to share more details within the next 24 hours.
    • Brave Browser 1.91.172

      By Copernic · Posted

      Brave Browser 1.91.172 is out.
    • Any Video Converter Free 9.2.3

      By Copernic · Posted

      Any Video Converter Free 9.2.3 by Razvan Serea Any Video Converter is an All-in-One video converting tool with an easy-to-use graphical interface, fast converting speed and excellent video quality. Any Video Converter supports all popular video formats and converts your videos to different video formats including MP4, MOV, MKV, M2TS, M4V, MPEG, AVI, WMV, ASF, OGV, WEBM, and more. It supports converting videos to customized percent (50%, 100%, 200%, and more) or resolution (480p, 720p, 1080p, 4K, and more); It supports encoding videos into x264, x265, h263p, xvid, mpeg, wmv, and more. Any Video Converter Free key features: Compatible with Windows 11/10/8.1/8/7 (32-64bit) User interface are available in 14 languages Convert all kinds of video formats including high-definition videos Extract audio from any videos and save as MP3/WMA for your mp3 player Take snapshot from any videos and build your own picture collection Support high-definition for both input and output Batch add videos from hard drive and batch convert Customize output parameters completely as you like Manage your output videos files by group or output profile Merge several video files into a single and long one Clip a video into segments Free Audio Filter: Adjust audio volume and add audio effects Crop frame size to remove black bars and retain what you want only Adjust the brightness, contrast, saturation Rotate or flip or add noise/sharpen effects Produce output video with subtitles of your own dialogue and much, much more... Any Video Converter Free 9.2.3 changelog: Fixed video download engine auto-update failures. Added custom speed control support in the speed change tool. Added support for downloading YouTube AI-generated subtitles. Added support for preserving original audio stream in the format convert tool (e.g., Dolby Atmos, DTS:X). Fixed other bugs and improved overall performance. Download: Any Video Converter Free 9.2.3 | 7.6 MB (Freeware) View: Any Video Converter Free Home Page | Screenshot Get alerted to all of our Software updates on Twitter at @NeowinSoftware
    • Lethal fake phone chargers are still being sold on Amazon and eBay, UK watchdog warns

      By ZipZapRap · Posted

      Not sure what country you’re in but in many countries you can absolutely jail the sellers behind businesses… in fact I’d say in most countries you can do that
    • Microsoft about to radically change how often your Edge browser updates

      By +Good Bot, Bad Bot · Posted

      I guess we are done since you refuse to read my comment you replied to or my other comment in another thread you were also a part of here.

  • Recent Achievements

    • Dedicated
      jordanspringer earned a badge
      Dedicated
    • Rookie
      Rimplesnort went up a rank
      Rookie
    • One Year In
      Markus94287 earned a badge
      One Year In
    • One Month Later
      Markus94287 earned a badge
      One Month Later
    • Week One Done
      Markus94287 earned a badge
      Week One Done

  • Popular Contributors

    1. 1
      +primortal
      505
    2. 2
      +Edouard
      175
    3. 3
      PsYcHoKiLLa
      155
    4. 4
      ATLien_0
      90
    5. 5
      Steven P.
      79
    Show More

  • Tell a friend

    Love Neowin? Tell a friend!