Please report all spam threads, posts and suspicious members. We receive spam notifications and will take immediate action!
Page 12 of 23 FirstFirst ... 2101112131422 ... LastLast
Results 111 to 120 of 228

Thread: NV40




  1. #111
    Join Date
    Jul 2002
    Posts
    1,661

    Default

    NV40 and R420 memory secrets revealed
    GDDR3 won't be ready in time


    It's not often that rival graphics chip firms Nvidia and ATI use the same marchitectural tactics. But, this time around, it seems they don’t have any other choice. Nvidia’s upcoming NV40 and ATI’s R420 both support memory in the types DDR 1, GDDR 2 and GDDR 3, but both companies will be sticking with GDDR 2, at least at first.
    The reason is simple: DDR 1 is just too slow to support the latest-generation graphics chippery in high resolutions, with fancy FSAA and Anisotropic filtering. Also, DDR 1 has a clock limit of 1GHz which is very hard to crank up further. DDR 2, of course, is nothing more than DDR 1 that can run at more than 1GHz, given a set of different commands.

    Since both companies’ current chips use frequencies that are very close to that 1000MHz barrier, this means that neither has any choice other than to move to DDR II, or GDDR 2, as the suits would have us call it.

    GDDR 2 was sampled in Q3 2003 by Samsung and rated at 600 to 800MHz -- effectively 1200MHz to 1600MHz. Insiders have told us that Nvidia received 10,000 memory chips back in Q4 last year to prepare prototypes of its NV40 boards. We also learned that NV40 has 16 memory chips on board. Nvidia is aiming at a frequency of 750MHz -- or 1500MHz effectively -- but this depends on PCB quality and the number of layers. The first NV40 silicon-powered prototypes are currently meandering through the offices of special, beloved Nvidia partners, we are given to understand.

    GDDR 3 may, in theory, be one of the options on the market but, if you ask around in knowledgeable circles, you will learn that this memory is in early sample stage and so neither Nvidia nor ATI could get enough chips for Q2 retail availability of the cards, however big their muscles.

    It is expected that GDDR 3 will be ready by Q3 2004 so you might expect that the planned NV45 and the next ATI chip (R450 - R480?) will use this memory.

    Micron is the only signed up member of the Dramurai to have GDDR3 memory specifications on their site. There, the company suggests that Q1 will be a good time for sampling and my guess is that they won't be ready for production before Q3. Clockspeeds for both GDDR 2 and 3 will be set in the range from 600 to 800MHz - effectively 1200 to 1600 MHz.

    It’s interesting to see that 800MHz GDDR2 SDRAM has a latency of an incredible 1.25ns.

    Both the NV40 and R420 cards and memory interfaces are 256-bit ones and by current estimates, this means that a card that uses 600MHz GDDR 2 memory would have between a majestic 37.5 GB/s to a magnificent 50 GB/s raw bandwidth.

    We await their appearance with unabated breath.

    The Inquirer

  2. #112
    Join Date
    Aug 2003
    Posts
    1,790

    Default

    Sounds right to me, 600=1200, so 1200mhz / 8, x256 = 38Gb/s.

    For 50Gb/s, 750mhz memory, or DDR 1562.5 to be exact would be needed. That's just crazy.

    FX5900 - 3DMark2001 [20,566] - 3DMark2003 [7,281] - Aquamark3 [56,694]
    Ti4400 - 3DMark2001 [16,028]

  3. #113
    Join Date
    Jul 2002
    Posts
    1,661

    Default

    More NV40 details emerge
    Samples this month, hype building


    Nvidia's upcoming graphics chip, NV40, supports the Shader models 3.0 that Nvidia claims are in DirectX 9.1 and which, in the real world, are in DirectX 9.0c. Still, Nvidia's fearless marketeers are also claiming that the chip have three times the performance and eight times faster shaders than NV38—Geforce FX 5950 Ultra. Hmm.
    It's even more interesting that Nvidia claims that its card will end up four times faster in Doom 3 and seven times faster in Half Life 2. Well, even if those numbers are ridiculously high, you might expect that NV40 will have much more efficient shaders than NV38 had. NV40 is still AGP but we know something about their PCI Express chip and we will tell you about this later. In the meantime, it's NV40's day of glory.

    NV40 will use GDDR 2 or 3 memories as its memory controller is capable of both and Nvidia aims to get to 600MHz milestone - or should we say 1200MHz effectively. We heard before that it might end up faster but, in our view, that's simply impossible, since the PCB design would end too expensive and complex to produce. Another reason might be that it's not that easy to clock your card at more than 1200MHz. The card will have eight memory chips, 8x32BGA -144 GDDR memory.

    There will be two implementations of NV40 chips - as always NV40 U implies Ultra, where Ultra will end up faster. It's still too early to know the clock speeds of this solution but more then 500MHz is what Nvidia hopes for. We mentioned that they had silicon up and running at 300MHz but you can be sure the final stuff will end up faster.

    This time Nvidia wants to make cards more silent than NV30 and we're not being too ingenious when we guess this is what the phrase 'Silent Running' is all about. Even Nvidia now knows that people like quiet graphic cards.

    Nvidia calls its NV40 board an "enthusiast" board since it will come at high end price. Boards will be samples this month, February, with availability in April. The card will have two monitor outs with both DVI, VGA and combinations are possible [two DVI, two VGAs, VGA and DVI] and, of course ,TV out.

    Launch date so far remains Cebit's Thursday 18th of March. It's not the first and obviously not the last time that we will write about NV40. Stay tuned, there will be more.

    The Inquirer

  4. #114
    Join Date
    Apr 2002
    Posts
    3,141

    Default

    Can't wait to see some benchmarks. :)

  5. #115
    Join Date
    Jul 2002
    Posts
    1,661

    Default

    NV45 is Nvidia's PCI Express X16
    Catching the buses


    Nvidia is beavering away creating the NV45, a chip which uses PCI Express and marks a break of tradition for the graphics gnome.
    Nvidia will break the habit of a short lifetime to call the next rev the Nx5. In a way, this is an update since it ushers in the dawning of the Age of PCI Express, backed by Chipzilla, Chimpzilla, Marmosetzilla and even the legion of mobo vendors.

    Nvidia again will claim that NV45 is DirectX 9.1 compliant but let's clear things up by saying that there is no such thing as DX 9.1 only 9.0c. Let me stop right here and say performance wise it will equal the NV40 -- the only difference is a PCI Express interface.

    There will be two implementations of NV45 chips, as always. NV45 U implies Ultra and NV40 where Ultra will end up faster than 500, which is what Graphzilla is aiming for. Memory characteristics will be the same as the NV40, eight memory chips, 8x32BGA -144 GDDR 3 memory running at up to 600 MHz, 1200 MHz effectively. NV45 comes equipped with 256MB of 256Mbit GDDR3 memory, and not GDDR 2 like we suggested before. What's the difference? Even the vendors don't seem to know yet.

    Nvidia will call its NV45 board the PCI Express Enthusiast board and this baby will cost you $499. As the $ is to the €nron, so the €nron is to ster£ing.

    Production starts in April, not long after the Poisson d'Avril emerges.

    Nvidia validated PCI Express marchitecture back in December and is working closely with Intel labs. Intel actually co-validates Nvidia cards and so far both parties are happy. PCI Express x 16 is already tested on Gruntsdale and Tumwater and t all fine with D3D and OpenGL on this cards. Gruntsdale and Alterationwood will be called the 925X2 and 915P2 and Tumwater will be a server chipset. This chipset will be named E7515 and will cost $€£100 a piece when available.

    Nvidia has already sent over 500 boards to its customers to be able to prepare for the dawning of the Age of PCI Express.

    Nvidia has put its PCI Express generation of cards under a Q2 hat but we suspect that NV45 might be announced together with NV40 so let's say it will be launched at SnoBIT in Hangover in March.

    What's NV19, NV37, NV41 and NV43? We will tell you that later because Graphzilla has exhausted us yet again, but it has a lot to do with PCI Express 16.

    The Inquirer

  6. #116
    Join Date
    Oct 2003
    Posts
    154

    Default

    I cant't wait to see the price tag:barf:
    Main RiG:
    CPU: Athlon 64 3200+@2.17
    Mobo:Asus KT8V deluxe
    Ram:1Gig Corasair XMS PC-3200
    AGP: eVga GeForce 6800
    Case:Antec SLB
    HDD:Maxtor 80Gig 8mb
    PSU:Antec TRUE380

  7. #117
    Join Date
    Aug 2003
    Posts
    1,790

    Default

    Quote Originally Posted by Radicus
    I cant't wait to see the price tag:barf:
    Quote Originally Posted by weta
    9

    FX5900 - 3DMark2001 [20,566] - 3DMark2003 [7,281] - Aquamark3 [56,694]
    Ti4400 - 3DMark2001 [16,028]

  8. #118
    Join Date
    Oct 2003
    Posts
    154

    Default

    $499 is not bad:woot: wonder how much the 9590u will go down in price:D
    Main RiG:
    CPU: Athlon 64 3200+@2.17
    Mobo:Asus KT8V deluxe
    Ram:1Gig Corasair XMS PC-3200
    AGP: eVga GeForce 6800
    Case:Antec SLB
    HDD:Maxtor 80Gig 8mb
    PSU:Antec TRUE380

  9. #119
    Join Date
    Aug 2003
    Posts
    1,790

    Default

    I think you mean 5950U.

    FX5900 - 3DMark2001 [20,566] - 3DMark2003 [7,281] - Aquamark3 [56,694]
    Ti4400 - 3DMark2001 [16,028]

  10. #120
    Join Date
    Oct 2003
    Posts
    154

    Default

    DOH!:snip:
    Main RiG:
    CPU: Athlon 64 3200+@2.17
    Mobo:Asus KT8V deluxe
    Ram:1Gig Corasair XMS PC-3200
    AGP: eVga GeForce 6800
    Case:Antec SLB
    HDD:Maxtor 80Gig 8mb
    PSU:Antec TRUE380

Page 12 of 23 FirstFirst ... 2101112131422 ... LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •