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At stock a 7870 myst is about 10-15% slower, but when overclocked to 1150 or 1200 it is equal to a 7950.
Non refurb model for $150 after rebate with 2 game coupon:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814131484
Might be a better deal for those that want a warranty and the games. But only a little more brings you into 7950 pricing with a 3 game coupon.
Makes me wish I still had my 7870 Myst. I've been looking to SLI my 680, but it's going to cost me 2.5x this much money. Definitely [H]ot. You can't possibly get more bang for your buck right now.
Hmm might buy two of these...what's the lowest PSU you need to run this? Is 650 watts enough?
I'm using a 1000watt PSU for my Tahiti LEs, they suck down a bit of juice especially when overclocked. Also, at 1200Mhz, these actually perform closer to the Radeon 7970(non-Ghz) than the Radeon 7950, this card is a HELL of a deal!
http://media.bestofmicro.com/E/V/371191/original/SmallPerfIndex.png
Do you have any benches for your 7870xt cfx? I can't find any online.
When these first came out, I did a good bit of research on them, but decided to stay away since they can't use a standard GPU block..That being said, from a gaming perspective, these are kick ass cards..If you clock them @ 1.1Ghz core, they should be on a par/10% faster then a pair of 7950's @ their default boost clock of 950Mhz..
At this price, these cards have stolen the price/performance crown without a doubt..They are fully enabled 7950 dies with just 1 memory controller cut off, and will wipe the floor with a 650TI Boost/660 when a slight clock increase..I wish they supported full covered GPU blocks 10X as much now!
If you were to crossfire these cards, how real is microstutter?
7950 has 1792 SPs, 7870 XT has 1536.
Both at 1100Mhz core and stock mem speed is,
7950 3.94 TFLOPS, 240GBps, 112TUs, 32 ROPs
7870XT 3.37 TFLOPS, 192GBps, 96TUs, 32 ROPs
With 7950s being $180 or less now, they still offer nice bang for the buck, especially for higher res. Should average about 15% faster then the 7870XT with both at 1100Mhz core.
The ~10% faster/shader count being equal was a typo on my part, but my point about them equaling a 7950 with a 1.1Ghz clock speed stands..I have a friend that has a pair of them, and a single card (1.1Ghz) performs just as well as my 7950 (950mhz boost)..
Comparing one card overclocked to one that's not never makes any sense as you can always overclock the second the card as well. Every 7950 I had would do at least 1150, and most were 1200-1250.
At this point only Crysis 3 and Metro 2033 can use more than 2GB of RAM and that is only in high res triple monitor situations. Skyrim can use more but requires significant mods.
Of course, in two years it may make a difference around 1080p or 1400p, but you can just turn down a few settings and have no easily noticeable effects unless someone enjoys comparing screen shots over and over again to see the differences in a few places.