Overclocking Buyer's Guide - September 2004
by Wesley Fink on September 17, 2004 12:05 AM EST- Posted in
- Guides
AGP Video
AGP Overclocking Recommendation: eVGA 256MB GeForce 6800 GTPrice: $383 shipped
While the dust is still settling in this round of the video wars, we do know that the new generation of video cards from nVidia and ATI are twice as fast as the previous generation in many benchmarks. We also found in our testing of the new nVidia nForce3-250 chipset that it performs a bit better with an nVidia graphics card. With that in mind, we included a GeForce 6800 GT in our Overclocking system to match the nForce3-250 Ultra-based MSI K8N Neo2.
Why a GT instead of a 6800 Ultra? The 6800 GT is unique in also sporting 16 pipelines just like the 6800 Ultra. In fact, the only real difference that we can find between the 6800 GT and the more expensive 6800 Ultra is the clock speed. The two 6800 GT that we tested both reached 6800 Ultra clock speeds pretty handily, so if you want 6800 Ultra performance, you may well get it with a 6800 GT overclocked to 6800 ultra speeds. You can also buy 6800 GT cards, which is more than we can say for 6800 Ultras, which are very difficult to find.
The 6800 GT is clocked at 350MHz with memory at 1.0Ghz; the 6800 Ultra clocks the GPU at 400MHz, and the memory at 1.1GHz. Both have 256MB of DDR3 memory and 16 pipelines. The easiest way to try your hand at overclocking a 6800 GT to Ultra levels is with a widely available utility called Coolbits, which adds Clock Frequencies to the advanced tab of the nVidia properties. Coolbits even offers a Test and Optimal Settings button so you can check to see if your 6800 GT can support 400HMHz and 1.1GHz speeds.
If budget is a concern for your overclocking system, there is also a 12-pipe 6800 available for about $300. The 6800 is sill a decent performer and even easier to find, but it is not likely that you will push a 6800 to 6800 Ultra performance levels, and you will be still stuck with 12 pipelines instead of the 16 available with the 6800 GT and 6800 Ultra. There is also an even faster version of the 6800 family, called the 6800 Ultra Extreme, but as rare as 6800 Ultra cards are right now, we would hesitate to recommend an even rarer card, which is just a higher-clocked 6800 Ultra. Perhaps a 6800 Ultra, when you can find one, will overclock to Extreme levels.
The best way to see what the 6800 Ultra can do is to read the latest AnandTech Video Card review, which compares ATI X800 and nVidia 6800 in both AGP and PCI Express flavors.
The AGP Overclocking Recommendations will work very well on the MSI K8N Neo2, DFI LANParty UT nF3 250Gb, or Chaintech VNF3-250. However, a PCI Express Video Card is required for the Socket 775 Asus P5AD2 Premium.
Listed below is part of our RealTime pricing engine, which lists the lowest prices available on ATI video cards from many different reputable vendors:
If you cannot find the lowest prices on the products that we've recommended on this page, it's because we don't list some of them in our RealTime pricing engine. Until we do, we suggest that you do an independent search online at the various vendors' web sites. Just pick and choose where you want to buy your products by looking for a vendor located under the "Vendor" heading.
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MemberSince97 - Friday, September 17, 2004 - link
^^GJ^^ WF...Wesley Fink - Friday, September 17, 2004 - link
#10 - I just checked the ORB for 3DMark2001SE and the highest placing Intel was #10 - the 9 top scores were AMD. 2001SE IS sensitive to CPU speed and memory speed and is useful for comparing CPU's.3DMark2003 is not very sensitive to CPU and Memory, so it is excellent for testing pure video performance. Intel does lead in many of the top ten 3DMark2003 scores, but that is a result of Video card performance since 03 is very video centric. Consider the leads there the result of Intel's chipset prowess in graphics support. Looking at the top 20 it is like 50/50 AMD/Intel in 03.
#17 - The DFI is already for sale in the US. The problem is it is selling out very quickly. Additional production is on it's way to resellers, and DFI is gearing up more production for October.
gnumantsc - Friday, September 17, 2004 - link
Just a little typo in regards to 2 x 74GB Western Digital 74GB Raptor 10,000RPM SATA RAID (148MB Total) Should be 148GB not MB.Unless there is a raid system to make your 2 HDs 1000 times smaller :)
helopilot - Friday, September 17, 2004 - link
Wesley: What an *excellent*, well written article! Full of veryuseful info, specs, opinions and lots of general observations and
tips. I think this is one of the best pieces I've read on a
hardware review site. You must have invested considerable time on
this article!
I especially appreciate the level of detail you've incorporated and
the tables, diagrams, graphics etc. that really help to get the
information across to the reader. You deserve high praise indeed
for this level of tech writing.
Keep up the Good Work!
PolaroidPaul - Friday, September 17, 2004 - link
Great review but one issue that bugs me. I am looking into building a value OC system and it sure seems like the DFI board is a good one. Unfortunately, it is practically vapor ware at the present time.Maybe parts that are not readily available should not be on the recommended list. I hate having to wait for parts to show up in distribution while every article tells me how good the sample was. Tell me about what is comming but don't put it on the list if it does not show up as availalbe on your real time pricing list.
Just my humble opinion!
Illissius - Friday, September 17, 2004 - link
I will repeat the stuff about the value RAM. You say yourself that the A64 isn't as sensitive to memory bandwidth, and the doubling of it with socket 939 only results in 2-9% performance gains. 'Enthusiast' memory is a lot less than twice as fast, so you can extrapolate how much extra performance that would gain, and it makes little sense to spend double on it when that money would be much better spent on a faster processor or video card*.Actually, you should just split the memory into Performance and Value, same as with the processor. Ballistix and EB for Performance, and standard value RAM from someone reputable (eg Corsair Value Select) for the Value. Hell, why not seperate /every/ component into Performance and Value? 9800Pro/6600GT and 6800GT for the video card, WD Raptor and random 120-200GB drives, and so on.
...I'm starting to think that the best thing to do would be to just flat out split the Performance and Value into seperate buyer's guides. They're at least as different as the mid- and high end guides are.
One more thing, and then I'll stop - the HSF has much more significance in the overclocking equation than you seem to be attributing it. You don't need to give it a seperate section, just mentioning a list of the better choices would be nice (afaik, Zalman CNPS7000A-(Al)Cu, Thermalright SLK-947/8U, SP-94/7/8, and XP-90/120, and possibly others), because for the person just getting into the whole overclocking thing, they may not know ;).
* Contrary to a common misconception, you don't need faster memory to overclock the processor. Most boards can lock the memory at stock speeds, or otherwise can use a 5:4 ratio or something.
iversonyin - Friday, September 17, 2004 - link
i would fork out a little more for 2800+ athlon 64 then usin the sempronhes right on the money $20 more, u r better off with 2800+ 64 then sempron
thebluesgnr - Friday, September 17, 2004 - link
#13,it's actually:
X300SE = 9600SE
X300 = 9600
X600PRO = 9600PRO
X600XT = 9600XT
No 9200 in PCIe.
DEMO24 - Friday, September 17, 2004 - link
This is to poster #2. You CAN buy a x300 or x600. its called the 9200 for a x300 and a 9600 for the x600. Theres nothing speical to the x cards below the x800 cuase they are all jsut old cards made to fit PCI-e. A good way for ATI to make money and look good.ksherman - Friday, September 17, 2004 - link
Yippie! someone finally OCed a Sempron! Ive been wondering how well those cheapos would do... Sounds amazing!