Recommended Posts

The G5 is designed for dul processor systems. It offers 215 in-flight instructions (the G4 can only do 16), an optimized Velocity engine, two double precision floating points, two fload store units, massive branch prediction logic, 130 nanometer process, silicon on insulator, and 8 layer copper interconnects. [14:18 ET]

An entirely new architecture. Massively parallel. A twelve-unit core with up to 215 in-flight instructions (the G4 is capable of only 16). Optimized Velocity Engine with dual pipeline design and two double precision floating point units. Two fully symmetric integer units and two load and store units. Massive branch prediction logic. "I don't know what it does," Steve says. "Predicts branches. It's a good thing." Lots of laughter. "IBM has done a phenomenal job on this . . . they also happen to hve the world's most advanced chip fabrication." 130 nm process, silicon on insulator, eight-layer copper interconnects, 58 million transistors, and it's built on 300 mm (12-inch) wafers. He displays one of them. "It's just amazing."

[ 11:17 ]The G5s are built in a $300 million facility in East Fishkill, NY. Some microscope views of the chip itself, as well as the giant 12-inch wafers. Some internal shots of the fab. It looks very 2001: A Space Odyssey. Or something. Steve now introduces John Kelly III, Senior VP, Technology Group, IBM.

[ 11:19 ] John Kelly recaps the G5 a little, noting how they took inspiration from their high-end (one would assume POWER4) chips. Some geeky specs that I won't recap here, and I'm sure are available elsewhere. "This is just the beginning," Kelly says. IBM spends $5 billion annually on R&D, much of it toward microprocessor and semiconductor technology. Hundreds of IBM engineers are already working on the next generation. Kelly thanks Jobs and exits. Huge applause.

"We've been waiting for this day for a long time," Jobs says. (Gee, you think?) "Now, let's build a system with it." The G5 system controller was designed by Apple. It's got dedicated bandwidth to main memory for each system. The G5 has a 1 GHz bus for 8 GB/sec of bandwidth. A bi-directional 64-bit bus. And you can add a second processor, which is where the independent buses come into play. Now you ahve 16 GBps of bandwidth and 12 times the bandwidth of the G4. No slowdown when you add a second processor. For memory, they went iwth 400 MHz, 128-bit DDR memory. This allows for 6.4 GB/second of bandwidth. For graphics, AGP 8x Pro graphics. The latest chips from NVIDIA and ATI and power for professional cards.

[ 11:23 ] I/O. 133 MHz PCI-X slots for 2 GBps of bandwidth. One 133 MHz slot and two 100 MHz slots. Storage? Serial ATA, and connects to HyperTransport interconnect.

The system: Uses the G5 System Controller - among the world's fastest ASICS. The machine has 8GBps bandwidth, with DDR, and much more. Completely independent processors. Uses 400 MHz 128-bit DDR memory. AGP 8x Pro graphics - uses the latest chips from NVIDIA and ATI. 133 MHz PCI-X slots. One 133 MHz slot, two 100 MHz slots. Serial ATA drive connection technology, utilizes HyperTransport. FW 800/400, USB 2.0, Gigabit Ethernet, AirPort Extreme, Bluetooth, and Optical Audio.

This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Posts

    • "lets you pause updates by choosing an end date, for up to 35 days" Wasn't it "indefinitely"?
    • Those extra reboots are related to the UEFI Secure Boot certificate update thing.
    • Hands on with the ProtoArc EM25: Affordable ergonomic mouse that focuses on the right things by Taras Buria ProtoArc is known for making all sorts of office products with a big focus on ergonomics and comfort. Its latest product, the EM25, promises a comfortable-to-use, affordable, and customizable mouse. We took one for a spin; here are our impressions. The ProtoArc EM25 is a $49.99 mouse, but right now, during Prime Day 2026, you can get it for just $37.99. Right off the bat, you can see that the EM25 is inspired by Logitech's MX Master lineup and the legendary MX Master 3/3S. Its shape and proportions are very similar, so for a person with large hands (right-handed person, mind you), the EM25 is very comfortable to use. The mouse fills the palm, and the thumb rests on a small extension, giving your wrist a small tilt to reduce strain. The mouse is made of black plastic without any coating, eliminating long-term wear concerns. However, I can see the main buttons and other areas you touch the most getting polished over time. Despite its size and bulk, the mouse is not too heavy. It weighs about 100 grams, which is significantly less than the MX Master 3S and its successor. It is no lightweight gaming mouse by any means, but it is not excessively heavy like the MX Master 4. The EM25 has a built-in storage for its USB dongle. It is a cleverly made magnetic flap that you open by simply pressing on it. Next to the flap, you will find the on/off switch, the 1,000 Hz sensor, and a DPI button (up to 8,000 DPI). I find the DPI button location a bit odd, and I would prefer it somewhere below the main scroll wheel. Still, given that I never change DPI on my mice, I will let it pass. What is more important is that, unlike MX Master 3/3S/4, the device switch button is located below the left-click button, which allows you to switch devices without lifting and flipping the mouse. For a multi-device setup, this is a perfect solution: the button does not require too much effort to use, it does not get in your way, but it is also easily reachable with your thumb. The main scroll wheel has two modes: ratcheted and free-flow. You can only change between them with a bright orange button (I like this little touch of color), which is sprung and requires some effort to press. The wheel is dead-silent in free-flow mode, but ratched is quite loud and stiff, perhaps even too much to my liking. I can hardly call it deal-breaking, but it will certainly take some time to get used to. The side scroll wheel, it is notched, silent, and pleasant to use. Next to it, you can find a piece of glossed plastic with connection indicators: Dongle, Bluetooth 1, Bluetooth 2, and the low battery indicator. By the way, the built-in battery is rechargeable via a USB Type-C cable, which is included. It is sleeved and has an orange velcro strap to keep it tidy. After using the EM25 for a few weeks, I can say that its main buttons are my absolute favorite. They have very pronounced clicks, which feel great with just the right amount of force required to register a press. I would say they feel like something in between regular mouse clicks and silent ones. You can hear and feel the springy switch, but it is not sharp or loud to the point of annoying you. As for back/forward and device switch buttons, they are very clicky and quite noisy. Unfortunately, there are no extra buttons that you can map to specific things like in the MX Master lineup. Besides great primary clicks, another thing I like about the EM25 is its 1,000 Hz sensor. In the world, where Logitech still uses 125 Hz sensors in $100+ mice, seeing a much faster sensor in a mouse that costs three times less is very refreshing. Also, all the settings and customization you make are stored on-device, and you do not need to install any software. Just open the web-based app and change all that you need. Speaking of customization, you can remap what buttons do, adjust the DPI, and the sensor speed. Sadly, gestures are not supported, but you can still map pretty much anything to each button, including shortcuts, media buttons, and more. I also recommend using software like XMouseControl, as it will let you remap the side scroll wheel. At the end of the day, the ProtoArc EM25 is a great mouse. Clearly inspired by the MX Master lineup, it takes the best of it and complements it with a much more wallet-friendly price tag, significantly better sensor, on-device memory, a built-in storage for the dongle, and more (it fixes everything that I complained about the MX Master 4 recently). And for only $37.99 during Prime Day, the EM25 is an easy recommendation. Buy ProtoArc EM25 mouse - $37.99 | 24% off with Prime As an Amazon Associate, we earn from qualifying purchases.
    • Pretty nice tool, thanks
  • Recent Achievements

    • Rookie
      DaviKar went up a rank
      Rookie
    • Dedicated
      HidekoYamamoto94 earned a badge
      Dedicated
    • One Month Later
      timbobit earned a badge
      One Month Later
    • One Month Later
      nates earned a badge
      One Month Later
    • Week One Done
      Almohandis earned a badge
      Week One Done
  • Popular Contributors

    1. 1
      +primortal
      464
    2. 2
      +Edouard
      161
    3. 3
      PsYcHoKiLLa
      110
    4. 4
      Michael Scrip
      83
    5. 5
      Steven P.
      69
  • Tell a friend

    Love Neowin? Tell a friend!