Overclocking Buyer's Guide - August 2004
by Wesley Fink on July 27, 2004 11:24 AM EST- Posted in
- Guides
AGP Video
AGP Overclocking Recommendation: eVGA 256MB GeForce 6800 GTPrice: $389 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 or possibly even higher 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 are 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 more rare 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, Asus P4C800-E Deluxe, or DFI NFII Ultra Infinity. 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 nVidia 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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bluedart - Tuesday, July 27, 2004 - link
It does say the price. Read from the top of the page:AGP Overclocking Recommendation: eVGA 256MB GeForce 6800 GT
Price: $389 shipped
BTW FX53 is a good choice at overclocking. Keep in mind this is with air. But if you utilize other forms of cooling the FX will go even higher, approaching 3GHz with proper cooling (see THG's review). This makes it one FX58. That is absolutely a grand overclock, seeing that FX58 speeds will not be here for another year or so.
danidentity - Tuesday, July 27, 2004 - link
#4: Did you read Anandtech's article on breaking the overclocking lock? Almost all companies have broken it. It is very possible to reach those speeds with the stock HSF.http://www.anandtech.com/cpuchipsets/showdoc.aspx?...
devonz - Tuesday, July 27, 2004 - link
Why isn't the 6800 GT card in the price list on that page? Or am I missing it somehow?T8000 - Tuesday, July 27, 2004 - link
I think recommending an Athlon FX for overclocking is a joke. Those things do not even manage a 5% overclock, and their real world performance is only close to a P4 at 3.4 GHZ, as gaming at 640x480 is not very common among people spending this kind of money. And at a realistic setting of 1600x1200 and 4xFSAA, the CPU is not really the bottleneck in todays games. When you do encoding, where CPU speed does matter in the real world, the P4 is head and shoulders above Athlon FX.yzkbug - Tuesday, July 27, 2004 - link
How about a VALUE OC DDR section? Paying $300+ for 5-10% performance increase over ~$150 regular DDR is a waste, imho.Zebo - Tuesday, July 27, 2004 - link
Peferformance------------
1. 2.8 P4C to 3.6 $180
2. A64 3200 to 2.5 $223
Value
--------
1. Duron 1.8 to 2.4 $44
2. Mobile XP to 2.6 $89
:)
Zebo - Tuesday, July 27, 2004 - link
Wow recommending a P4C over a moblie barton in the value section.Twice the price for roughly the same OC performance I don't get it. It's the inverse of price to performance. must be an error is all I can imagine.Then recommending a Socket 775 presshot. Lets see this 3.8- 4GHZ OC with stock HSF. I don't think so. Then the overclock lock issues which hav'nt been settled, have they? My understanding is 10% over stock FSB, yeilding about 3.4 Ghz far from 4ghz, the system crashes!! What kind of overclockers choice is that?
chuwawa - Tuesday, July 27, 2004 - link
Perhaps it's time to start recommending the Athlon64 3000+ for the value OC alternative.bluedart - Tuesday, July 27, 2004 - link
This is a great guide for overclocking, although I believe that there needs to be some more acutal testing with the 755 and 939 sockets to give us a better picture of how they perform. It is especially difficult when PCIxpress and ddr2 aren't widely available yet.If anyone else has some REAL data on overclocking these new platforms, I would like to see those posts.
Currently I am making a heat sink out of synthetic Diamond (better heat transfer than copper and silver by 2x) and will be testing it on the FX system. If there are any other reccommendations I would be more than happy to hear them.
expletive - Tuesday, July 27, 2004 - link
I would cast a vote for the A64 3500+. If it can reach 2.6 like an FX53 at half the price that's tough to beat.The 3500+ is currently retailing for $390 shipped online. I know thats not quite a 'value' but to get FX53 gaming performance for half the price, that can't be denied....