TreVader
Platinum Member
- Oct 28, 2013
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I'm not sure what all this is. All stated was that quality memory was more important on the 780 because you have to clock the 780 memory 33% higher than the 290 to achieve the same result.You're going to focus on specification sheet arbitrary numbers without looking at the context behind them?
Your original context was in relation to memory bandwidth. Fact of the matter is, the Hawaii doesn't have vastly greater memory bandwidth than the 780 reference. They're pretty close, and since most custom 780s overclock the VRAM anyway, some 780 models are closer to even. Meanwhile, the 780ti - The 780ti actually has greater memory bandwidth. Does the Hawaii have 33% greater memory bandwidth than the GTX 780 reference, though? No. It does not. The 780ti has greater memory bandwidth than Hawaii.
Overall this means little if anything. It's absurd to focus on one detail on a specification sheet and make sweeping assumptions or implications based on that. It isn't a situation where you can say "oh, 512 bit bus" and state that a card is better than everything as a result. Prime example being the 2900XT. If GPUs always boiled down to specification sheets, things would be oh-so SO SO SO different. The 2900XT would have been such a better performer than it was. Same for the 7970. Comparing the GTX 770 and 280X specification sheets heavily favors the 280X. But architecturally, the Kepler is better and performs as well or better in some cases. (referring to the 770 here) Overall, the 770 and 280X are roughly at parity give or take depending on title despite the Kepler GPU having a lower memory bus. Specification sheet figures mean little without complete context and consideration of the architecture behind it.
So your statement was something along the lines of "Buy the 290 because it has a 512 bit bus" Uh. As if that means much of anything. It really doesn't. I'm sure railven is intelligent enough to figure these things out though, and look at meaningful considerations in his GPU purchase. Instead of something listed on a specification sheet. I'm not saying the 290 isn't worth consideration, certainly railven will think that over. Custom 290s are quite fast GPUs and competitive - now I prefer NV of course due to software, but not everyone sees things as I do. Railven may well get a 290 and that's great. However, trying to state "290 has a 512 bus, that makes it a better GPU". Uhm. You can cite other reasons to make a case for the 290, but bus width isn't one of them.
I made no qualitative judgments about either card, but it's interesting to watch somebody try to make an argument for a 384 bit bus being just as wide as a 512 bit bus.
