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[Various]AMD Radeon 7850 & 7870 reviews - Page 3

post #21 of 263
Higher clock most likely.
post #22 of 263
Quote:
Originally Posted by 996gt2 View Post

Can anyone explain why a 7870 is blowing past a 7970 in Crysis 2?
http://www.techpowerup.com/reviews/AMD/HD_7850_HD_7870/13.html
crysis2_1920_1200.gif

I noticed that one too. Maybe a bad run. Doesn't seem right at all.
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post #23 of 263
Quote:
Originally Posted by bluffmasta View Post

Higher clock most likely.

A slightly higher clock (1 GHz on the 7870 vs 925 Mhz on the 7970) is going to make up for the missing ~800 shaders on the 7870?

notsureifsrs.jpg
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post #24 of 263
Quote:
Originally Posted by Gabe63 View Post

But look at the OC result. It is only one test but 7870 overclocking past a stock 7970.

Kinda proves right there that GCN is severly ROP limited..

800 less cores, but same performance with OC.

Just an observation. Good series, good cards. Not like they need any more performance than what they offer anyways. As ZealotK1ller said in the other thread(regarding 7990 but still applies to GCN as whole); why make a beast when one is not needed. Save that for when it is needed. Don't lay all your eggs out in one basket.

Anyways, not bad on the 7870.
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post #25 of 263
Looks like there is absolutely no point for me to switch from 6970 to 7870 then. Pretty much same performance, the 7870 is at most 5% better in some games. It also runs cooler and uses less power. Not worth selling my card then having to put another $70-80 on top of that to pay for one.
post #26 of 263
I might just have to pick one up and review it myself wink.gif Check back with me in two weeks... Assuming I can find a nice one with a reference PCB and non-reference heatsink at launch, which it looks like should be possible. And also assuming that I don't pick up a HD7900 series card or something else... Hmm.
Edited by staryoshi - 3/4/12 at 9:47pm
    
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post #27 of 263
Quote:
Originally Posted by ComradeNF View Post

Looks like there is absolutely no point for me to switch from 6970 to 7870 then. Pretty much same performance, the 7870 is at most 5% better in some games. It also runs cooler and uses less power. Not worth selling my card then having to put another $70-80 on top of that to pay for one.

I said this since beginning. 78xx is meh. Not bad, not great. Some games its EXCELLENT. Some games lower than 560ti. Meh.
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post #28 of 263
The more I look at this think it looks like a winner.

Another OC result from Guru


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post #29 of 263
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post #30 of 263
Quote:
Originally Posted by Dmac73 View Post

Kinda proves right there that GCN is severly ROP limited..
800 less cores, but same performance with OC.
Just an observation. Good series, good cards. Not like they need any more performance than what they offer anyways. As ZealotK1ller said in the other thread(regarding 7990 but still applies to GCN as whole); why make a beast when one is not needed. Save that for when it is needed. Don't lay all your eggs out in one basket.
Anyways, not bad on the 7870.

You really think AMD is thinking that way? lol, ok.
The same trend has been going on for years, they aren't doing anything different.
40% new arch increase, 20% refresh increase. Rinse and repeat.
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