5870 to 7970, or wait till 7990?

ben_mojo

Distinguished
Jul 13, 2011
6
0
18,510
Hello,

i have recently build a new computer:

i5-2500k @ 4.5 ghz on H100
8gb 1600 corsair vengence ram
ATI 5870 - this is old

i am thinking to upgrade my video card, do you guys think i need to at this moment? 5870 is still solid fast (kinda = geforce 560ti) and i really don't want to pay $500 or so to get the best performance, considering 6970 was only around $350 when launched

i play all the new pc games, sc2, bf3, diablo 3

please advise, thanks guys
 

tydalwave

Distinguished
Oct 27, 2006
154
0
18,680
I am in the same boat. I have a 5870 with a gaming overclocked profile of 980/1250 that plays on my 59 inch and when wife won't let me there, back to my two 24" 1920x1200 LCD's.

My friend has a i7-2500k running at 4.5 with a 580 GTX 3gig. He runs BF3 in Ultra with 4xMSAA anywhere from mid 40's to 60's during multiplayer. I have a Q9650 @ 4.39 now ( 1.39 vcore ) and a 5870. I play BF3 in Ultra with all the same settings but no MSAA ( it kills my performance of course ) but I'm pulling mid 50's to over 70. I want to get the 7970 or 580 really bad, ( 7970 now that the performance is better than the 580) but I cannot for the life of me justify upgrading to a 7970 just so I can turn on MSAA. Without it, ( MSAA ) I am still as smooth, if not smoother gameplay than the 580. So right now, holding off to see what the future brings. My 775 system has been rock solid for me for 4 years now.
 
A second 5870 would be cheaper and offer significantly better performance than a 7970 :)

I'm running a pair of 5850s and it looks like there's still no reason for me to upgrade. BF3, 1920x1080, Ultra with 4xMSAA averages over 60, although I like to run 2xMSAA just to reduce any frame drops - not like it looks any worse.

However, one of my next upgrades will be a 2560x1440 monitor, and then I'll be a little short on power.

But, yeah, 7970 @ 1080p is basically going to crush anything you throw at it. That card is really meant for either large ass monitors like 2560x1440/1600, or eyefinity.

For $550, you might be better off with a pair of 6950s or 560 Tis.
 

tydalwave

Distinguished
Oct 27, 2006
154
0
18,680
 
Uh, no, there's literally no way 5870s are slower than a 7970. My 5850s perform almost equally at 1080p to a 7970, and they are slower than 5870s. I know these comparisons aren't perfect, but it's a pretty good look at it. Different systems and all that, but my cards are OCed and if I compare GPUZ performance, my memory bandwidth is equal to stock 5870s while my core texture fill rate is lower.

avp_1920_1200.gif

AvP.jpg


crysis_1920_1200.gif

Crysis.jpg


imageview.php

dirt2-1.jpg
 

tydalwave

Distinguished
Oct 27, 2006
154
0
18,680
wolfram23,

Check out the Tomshardware article on the 7970, it shows very different numbers. Those screen shots also are of DX10 titles, the BF3, Crysis 2, Batman AC show very different numbers. Toms has the 7970 besting the 580 everytime and even beating the 6990 and 590 in some titles/rez's. From Toms opinion, it's the 7970 on top of the 5870's.
 

Warmacblu

Distinguished
Oct 28, 2011
706
0
19,060


I agree, a single HD 7970 will probably give a more consistent level of performance.

OP - because you already have an HD 5870, adding a second one will be much cheaper and will grant you similar performance. I think you should add another one if you are not satisfied with your current system instead of spending $500+.
 
No kidding. But that's the only benchmark I could find that has those specific games in a short period of time.

I did say the comparisons weren't perfect. But, it's only an 11% change in total pixel area.

For example, 54.8x1.11=60.8. I got 56.1. Well guess what? That's not a big difference, and 5870s are faster than my cards.

A 7970 is nice, but the cost over a second 5870 is pretty huge for little to no gains.
 

tydalwave

Distinguished
Oct 27, 2006
154
0
18,680
I really want to crossfire this 5870, but I cannot find ANY under 200 bones. That's alot for 2 gens behind :/ I was bidding on one on Ebay but got outbid ( bids went up to $214 ) So my next plan is possibly sell my 5870 ( Asus EAH5870 Version 2 ) and use that money to get the next upgrade. If I squeeze $200 outta this card, maybe I can get into a 7970 for $350.
 

xtreme5

Distinguished
@ OP

get single HD 7970 you have such an outstanding stuff don't waste anymore you had clearly mention "i play all the new pc games, sc2, bf3, diablo 3 " then i'm 100% sure a single HD 7970 is best bet for each and every game with maximum setting and highest resolution if possible.
 

jchurch83

Distinguished
May 17, 2010
75
0
18,640
that chart shows the 5970 performing better than a 7970? A. that doesn't make sense B. if that's true im going to be pretty pissed about getting a 7970 being delivered tomorrow!!

The way I look at it is do you want to spend say 250$ on another outdated video card and run them in SLI which will take more power to run and produce more heat or.. Get a new 7970 and ya pay twice as much but then down the road in a year you can get a 2nd 7970 and run them in SLI

just my 2 cents
 

ajlueke

Distinguished
Jan 19, 2012
1
0
18,510
I would get the 7970 instead of another 5870.
While the 5870 in crossfire will be better in some games, games where crossfire doesn't scale well will be worse, and newer DX11 titles (Arkham City), that use tesselation and other DX11 features do not run well on the 5870. A 7970 will definately help turn the DX11 eye candy on. The 7970 also has quite a it of overclocking headroom, so you can crank up the clocks in you need extra performance down the road.
 
Just more comparisons for fun:

3dmark-p.jpg


7970 = 7600 GPU score.

My 5850s = 7853 GPU score at 870/1200 http://3dmark.com/3dm11/526273
My 5850s = 8775 GPU score at 985/1210 http://3dmark.com/3dm11/526616

So... 7970 is a safe bet with great performance. CF 5870s are the cheaper and faster bet, with possible CF/driver/stutter issues.

I don't really think much more has to be said. Sell the 5870 for maybe $150-200 and spend $350-400 on a 7970, or buy a used 5870 for a couple hundred.
 

jchurch83

Distinguished
May 17, 2010
75
0
18,640


you mean $550-600 if you are buying one right now. I think 559.99 is the lowest I saw on NewEgg for the regular cards and about 600 for the only variation right now the XFX Dual Fan Black edition. ^_^
 

tydalwave

Distinguished
Oct 27, 2006
154
0
18,680
sorry but jchurch83, did you read the couple words before the quote misunderstood?

Read the whole sentence. I'll repost it :D "Sell the 5870 for maybe $150-200 and spend $350-400 on a 7970, or buy a used 5870 for a couple hundred."
 

jchurch83

Distinguished
May 17, 2010
75
0
18,640



Aah sorry was at work so I wasn't reading as deep, didn't put the math in the equation