Overclocking Comparison
With overclocking, every GPU is different, so a side effect of looking at this is that we get a good idea of how the 6600GT will overclock in a general sense. We can't really say that all Albatron cards will overclock by 90MHz. Believe us when we say that if they all would run at that speed, they would all be running at that speed and out-selling the competition. There are a lot of factors that go into it. That's why we base most of our recommendation and ranking decisions on cooling and noise levels rather than overclocking. It is still a factor though.
Those with a calculator handy will notice that the mean median and standard deviation are:
Mean: 568.10
Median: 571
Std. Dev.: 17.1840
Knowing NVIDIA, QA is going to assure that chips leaving labs will run at a little higher than stock clock speeds. This translates to a little bit of breathing room. What we pull away from this testing is that we expect Geforce 6600GT's to achieve a minium 7% overclock. A 9% to 12% overclock should be possible to most people who decide to own this card. Beyond that is icing on the cake. Of course, we are working with a very small sample size and we don't know much about the population as a whole either. We would have been more comfortable making predictions had this data looked more like a bell curve, but what we see is a little too flat for us to say anything with any statistical confidence.
Our memory clock speed graph shows Sparkle on top, but that's 2ns RAM on a 110MHz overclock. The XFX RAM is running 1.6ns RAM at a 10MHz overclock. This could be really lucky for Sparkle, but it isn't likely to happen on most boards. A 22% memory overclock, even with the added features of GDDR3, is still tough to pull off, especially when the 1.6ns memory only matched its performance. Inno3D also uses 1.6ns memory, but our final overclock ended up lower than the 600MHz that should have been possible with this part.
All the other solutions are 2ns memories which overclock between 50 and 100MHz. All the memories we looked at on 6600 GT boards are Samsung GDDR3 solutions.
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geogecko - Friday, December 10, 2004 - link
#33. I agree completely. That's why I'm curious about the HDTV output. I want to build an HTPC that is somewhat future-proof, and if that is the case, then I need the HDTV Out feature to work. From a review on newegg.com's web site on the XFX card, he couldn't seem to get and HDTV Out to work with the card.NVDVD would also be a plus if it was included, but I doubt it. I sent an e-mail to tech support over at XFX, asking these particular questions. Hopefully, I'll get an answer.
jamawass - Friday, December 10, 2004 - link
Well there's more to a graphics card than gaming. The 6600 series is causing quite a stir in the htpc community because of the video decoding capabilites and hdtv output. It would've been helpful if the reviewer had mentioned the various manufacturers' suppport for HDTV output out of the box, which cards come with the NDVD codec, component adapter etc.bigpow - Friday, December 10, 2004 - link
-> hex value 3 = decimal value 3geogecko - Friday, December 10, 2004 - link
Great article Derek. Been looking for a 6600GT round up article for a while now.Question though. A few of these cards come with an HDTV cable, which, I guess I'm a little confused to what this actually is. I prefer the XFX card, because of the dual DVI outputs (and no need to overclock the card). It doesn't list as coming with an HDTV cable, so I'm wondering, what is the impact on not having this cable? What is the cable? Can't one usually just hook up a DVI cable to an HDTV?
Spacecomber - Friday, December 10, 2004 - link
Nice round-up, and your bringing attention to the potential problems with some of the heatsinks is very much appreciated.Maybe as a follow up we need a round-up of some after-market heatsinks for the 6600GT.
Any reason to assume that these conclusions reached for the PCIe cards do or do not apply to the AGP versions? I know the AGP versions typically have their heatsinks set on a diagonal in order to accomodate the bridge chip.
Space
arswihart - Friday, December 10, 2004 - link
my last comment was in response to #25#27 - Derek is talking about his "IT friendly" list, those cards he felt had the most reliable hsf implementation
arswihart - Friday, December 10, 2004 - link
it does consistently lead in performance, worth noting by all means, but also, as it was mentioned in the review, these cards probably all perform even better on an nforce4, and the rank and file in performance among these cards might be a little different on an nforce4but I would definitely get an arctic cooler for the albatron anyways (if a compatible one is released) to quiet it down, that fan on it is tiny, thin, and loud
Houdani - Friday, December 10, 2004 - link
On the last page [Final Words] you are listing why some cards aren't worthy of an Editor's Choice award. The next to last paragraph states:"XFX doesn't make the list because..."
But, ummm, isn't XFX the Silver choice?
Aquila76 - Friday, December 10, 2004 - link
I know the Albatron didn't have a great mounting mechanism, but it was better than many of the othersAquila76 - Friday, December 10, 2004 - link
Why wasn't the Albatron given any medal? It has the best OC, best or near best performance in all the tests, and great temps even under load with the high OC. So the fan is a little noisier than the rest, is that any reason to dirt on this card?