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GeForce 7800GTX: EVGA's KO Edition
GeForce 7800GTX: EVGA's KO Edition
Date: August 9th, 2005
Topic: Video Card
Manufacturer: eVGA
Author: Josh Venning
 
 

User Overclocking

It would seem that at least for the card that we received, the modified heat sink didn't mean an incredibly greater overclock. We were able to overclock the core to 500MHz, which is a step up from the factory overclock, and we pushed the memory clock as high as 1.35GHz. This is the highest core and memory clock that we've managed to get out of overclocking any of our cards.

The high memory clock speed that we were able to get was interesting, and even beat BFG's 1.3GHz when we overclocked it. This made sense though, considering the fact that this EVGA card is the first that we've seen with RAM sinks on the back.

We're continuing to look into how these cards overclock, and we hope to have some firm answers from NVIDIA soon. It's somewhat frustrating when you have two 7800s hypothetically clocked at 426MHz and the 445MHz, and the reality is that they perform exactly the same (give or take a few tenths of a FPS on average). To us, that seems a little irresponsible, especially when the different vendors can use this to mislead buyers. An example of this would be with three of the 7800s that we've reviewed (including this one), each of which come factory overclocked. They were the EVGA e-GeForce 7800GTX (with a core clock speed of 450MHz), the BFG 7800GTX OC (460MHz core), and the EVGA e-GeForce 7800GTX KO (490MHz ). It would be logical then to assume that because of this, the EVGA clocked at 450MHz wouldn't perform as well as the other two. In fact, that assumption would be wrong.

While the EVGA card clocked at 450MHz is actually the worst of the three in terms of performance (and only by a very slight margin), the reason has little to do with the core clock speeds. It's the fact that the BFG and EVGA 7800GTX KO both have memory clocks set higher: 1.3GHz vs. 1.2GHz. You can see why this is frustrating and can make things confusing when we start to compare numbers between different factory-overclocked 7800s. The graph above should give you a clearer representation of how performance actually increases with the core clock speed adjustments. We will continue to research the frequency scaling issue and report on anything else that we learn.
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34 Comments - Last by Medium, 1462 days ago
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ats by swatX, 1645 days ago
wow thats really a nice heatsink. good job eVGA but i would get the reference design card. saves me 100+ bucks


oh and first post ;)

Reply
Ughh... EVGA by Lifted, 1645 days ago
One of my EVGA 6800GT cards died in 2 months. I had a SLI setup, no more. I'm batting 50/50 with EVGA. You can take your chances with them, not me. Fool me once, shame on you. Fool me twice, uh... err... you won't fool me again!

Reply
RE: Ughh... EVGA by DerekWilson, 1645 days ago
With their new lifetime warranty you don't have to worry about that anymore.

Sorry for your loss however ...

Reply
RE: Ughh... EVGA by fishbits, 1645 days ago
Which video card company can we buy from then in which no one has ever had a card go bad? With our combined experiences if we follow that anecdotal standard, I imagine we'll quickly rule out every manufacturer.

Granted if I bought a particular brand of card and it went bad, I might personally go with another brand the next time out. But I wouldn't pretend that an isolated incident reflected on everything they have made and ever will, then start claiming that I was "fooled" on forums. As tight as margins are in this business, any manufacturer who truly shipped out junk would be out of business in no time.

Reply
Dual Link DVI? by SignalPST, 1645 days ago
Does the EVGA e-GeForce 7800GTX KO come with Dual-Link DVI ports?

Reply
RE: Dual Link DVI? by DerekWilson, 1645 days ago
As we've said before, we haven't found a 7800 GTX card without a dual-link DVI chip.

We'll keep you guys posted if we find one without this feature.

Reply
HardOCP had it right by SpaceRanger, 1645 days ago
Yup.. HardOCP had it right when they said that this thing is just an overpriced 7800 GTX because of an old designed TI4600 heatsink in a metal wrapper..

Buying this card is NOT in your best interests..

Reply
RE: HardOCP had it right by RaistlinZ, 1645 days ago
How can you say buying this card is not in your best interest? For those that want BF2 it's a decent buy, and the performance speaks for itself.

These would make a good choice if you plan on running in SLI since you're GUARANTEED that you'll get 490core/1300mem out of the box.

Reply
RE: HardOCP had it right by SpaceRanger, 1645 days ago
You're paying extra and NOT getting BF2... This card sells for 60 bucks more, and all you get is a metal box around an old heatsink design, and no BF2..

Reply
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