nForce4: PCI Express and SLI for Athlon 64
by Wesley Fink on October 19, 2004 12:01 AM EST- Posted in
- CPUs
nForce4 Reference Board: Basic Features
nForce 4 Reference Board Specifications | |
CPU Interface | Socket 939 Athlon 64 |
Chipset | nForce4 Ultra single-chip |
Bus Speeds | 200MHz to 250MHz |
PCI Express Speeds | Synchronous or Asynchronous PCIe FIX at 100MHz to 145MHz (in 1MHz increments) |
Core Voltage | None available on Reference Board |
CPU Clock Multiplier | 4x-25.5x |
CPU Auto Tuning | Off to 15% |
HyperTransport Frequency | 1000MHz (1GHz) |
HyperTransport Multiplier | 1x-5x |
DRAM Voltage | None available on Reference Board |
Memory Async Latency | 10ns-4ns |
AGP Voltage | None available on Reference Board |
HyperTransport Voltage | None available on Reference Board |
Memory Slots | Four 184-pin DDR DIMM Slots Dual-Channel Configuration Regular Unbuffered Memory to 4GB Total |
Expansion Slots | 1 x16 PCIe Slot 4 PCI Slots 2 x1 PCIe Slots |
Onboard Serial ATA RAID | nForce4 (4 Drives, 0, 1, 0+1, JBOD) 2 SATA Controllers to 3Gb/s |
Onboard IDE/IDE RAID | Two Standard ATA133/100/66 (4 drives) Drives may be configured as IDE RAID |
Onboard USB 2.0/IEEE-1394 | 10 USB 2.0 ports supported by nForce4 No Firewire - Must use additional chip |
Onboard LAN | 1Gigabit Ethernet on-chip by nForce4 |
Onboard Audio | AC '97 2.3 8-Channel Realtek ALC850 supported by nForce4 |
BIOS Revision | Reference Board NF-CK804 10/05/2004 |
Reference Boards are normally quite different from the production boards that will later appear with the Reference Board chipset. While certain component arrangements may be retained from a Reference Board, the board is designed for testing and qualification, and generally not for production. They are also normally designed to be tested on the bench, out of any case.
The introduction of the nForce3-250 chipset family moved nVidia to a leading position for Athlon 64 chipsets. nForce4 builds upon the nForce3-250 update with the addition of PCI Express. The rearrangement includes an x16 PCI Express graphics slot, 2 x1 PCIe, two SATA controllers capable of 3Gb/s speeds, and 10 USB ports.
nVidia has not had SoundStorm on any nForce3 chipset, so for the past year+ SoundStorm has been "missing" on any nVidia chipset for Athlon 64. We raised this issue for nForce3-150, then for nForce3-250 in nForce3-250 - Part 2. This has not changed with nF4. The nForce4 Reference board uses the AC'97 2.3 compliant 8-channel Realtek ALC850 codec. More information on the ALC850 can be found at Realtek ALC850 Product information.
Fully decked out, nForce4 provides features currently available nowhere else, like on-chip 1GB Ethernet, on-chip firewall, 4-drive SATA RAID, and both SATA and IDE RAID that can be combined. The nForce4 SLI adds the option to combine two nVidia video cards in two x8 PCIe slots for a huge increase in video performance.
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geogecko - Tuesday, October 19, 2004 - link
#68Hmm...that search result at newegg.com pulls up 12595 results. Far to many for me to look through...
Did you copy the link correctly?
Thanks for the information. If the link won't work, an official part number from newegg (or vendor part number) will work for me.
J.
thebluesgnr - Tuesday, October 19, 2004 - link
I'm a little disapointed that the original article didn't say anything about sound, and that it still doesn't in the "Final words..." page. No, I don't meand SoundStorm.From AT's previous article on CK8-04: "Vanilla flavored CK8-04 is very much the same as nForce3 250Gb, with the addition of 7.1 high definition audio and PCI Express".
So, they dropped the high def audio?
If that's the case both Intel and VIA (if the information on the VT8251 is confirmed) are ahead in this area, which is, for many, much more important than some silly hardware firewall.
In closing, I'm disapointed at AnandTech for:
1) being excessively positive about nForce4 (no mention of lack of high def audio, no mention of any disadvantages of SLI, like higher price of the motherboard and power consumption of two cards, or lack of PCI-E x1 in that MSI mobo);
2) completely ignoring the release of VIA K8T890 and KT880 chipsets.
The KT880 has been out for months, there are motherboards in retail (the K7V88 in particular seems to be doing very well, given the number of user reviews and their ratings on newegg).
Also, you reviewed the [b]nVidia[/b] nForce2 Ultra 400Gb chipset, so "socket A is dead" is not really an answer I'd understand.
haris - Tuesday, October 19, 2004 - link
What's the big deal about SLI? The average increase in performance will probably be around 50-60%. That's nothing to be ashamed about, but at what cost do you get it? Two 6600's still cost almost as much as one high end card, so there is little/no cost savings. What about the power requirements and noise level. That machine has got to be a freaking monster to work/play on.KristopherKubicki - Tuesday, October 19, 2004 - link
Geogecko:http://www.newegg.com/app/SearchProductResult.asp?...
Kristopher
mrdudesir - Tuesday, October 19, 2004 - link
#62First off, each slot is an x16 slot physically but only 8x of actual bandwith. However that still means that each slot has 4GB/s of bandwith, way more than any modern cards used. There will not be any performance hit, simply because the slots have plenty of excess bandwith.
geogecko - Tuesday, October 19, 2004 - link
Can I get an exact part number of the Corsair 3200XL memory you are talking about on the test platform? I've been looking for it, but I've not seeing this 3208v1.1 number anywere...Thanks. By the way, which memory is better, the OCZ or the Corsair?
knitecrow - Tuesday, October 19, 2004 - link
All you guys about doom3 don't need hardware, should read:Http://www.beyond3d.com/forum/viewtopic.php?topic=14459&forum=9
http://www.theinquirer.net/?article=17525
Basically creative said it invented a particular 3d positioning method, Id was forced to license and support EAX HD.
#62, Not unlike a CPU, a GPU is programmable to a certain degree. I am sure you can make it do almost anything.... but a dedicated solution will always be more efficient.
#63 -- "A card based around the VIA Envy 24HT is all anyone needs."
Rubbish.
Envy24 cards do jack for 3d positional audio. If you compare a software based vs hardware based solution, the hardware based stuff (soundstorm, creative noiseblaster stuff) always win out. They are more accurate in their positioning and reproduction.
quanta - Tuesday, October 19, 2004 - link
Actually, id licensed EAX HD for use with Doom 3. Even without EAX HD support, Doom 3 will just send the audio streams to DirectSound 3D engine for mixing purposes, which will take advantage of 3d audio accelerations if any.PrinceGaz - Tuesday, October 19, 2004 - link
Doom 3 doesn't use hardware accelerated sound, so SoundStorm has no benefit. If you are having problems with the sound, you might want to adjust hardware acceleration or something.Sound only takes a tiny amount of CPU power when you've got a processor like a 3800+ so it doesn't really matter whether or not its hardware accelerated. Its even less important when you consider that games are increasingly GPU bound, and that theres plenty of CPU power spare for processing sound. A card based around the VIA Envy 24HT is all anyone needs.
quanta - Tuesday, October 19, 2004 - link
#54/57, the decision to dump dedicated SoundStorm hardware actually made a lot of sense, because NVIDIA already has a powerful VPU that can be used as an APU if the company wanted. In fact, NVIDIA can just license AVEX[1], which currently only works on NVIDIA processors, and if NVIDIA play the cards right, it can just bought the BionicFX company now/soon and keep an edge over the competitions all to itself.As for the SLI, I think it will be too confusing for end users, and the dual slot design will likely be short-lived. Think about it, there are only 20 PCIE lanes on nForce 4, and each video card uses 16, so at least one card only runs a fraction of the speed, crippling performance. It may be technically correct that current apps don't need all 32 lanes, but it will be tech support nightmare for video card manufacturers from users who expected full blown performance. It will be much easier to just build a 16/20/32/etc-lane PCIE video card with two VPUs in it. That way users don't have to worry about the upgrade restrictions and performance issues, and easier for video card makers to sell dual VPU products. Sure, you lose the upgradability, but without tech support problems, card makers don't have to worry about people buying fewer cards because they want to wait for cheaper, more user friendly SLI solutions.
[1] http://www.bionicfx.com/