Pretesting Sapphire 5870's - Page 3

Gamer · 12th October 2009, 20:11

Yes please, for 01

leeghoofd · 12th October 2009, 20:12

test the card too in crossfire Luc, max GPU/RAM clocks might be a bit lower then... but the cards looked very promising on air

Need my REX HD ? so you won't need to reinstall everything from sratch besides the ATI drivers...

Massman · 12th October 2009, 20:57

Are you using Afterburner for extra voltage?

Gamer · 12th October 2009, 21:13

Yep, tried 1050 on 1.3vgpu = crash.
Although temps are not above 60° ???

Trying 1.350vgpu now @ 1050 mhz, so far so good in first test on 3d06.

FAIL..
Screenfailure, blank screen but benchmark did go further resulting in low score.

Max settings now : 1.3vgpu/1025mhz for single GPU.

Gamer · 12th October 2009, 21:45

no 1025 on Crossfire, backing down to 1000

If you use both CCC and MSI afterburner, second card goes back to stock.
So make sure all is ok when you use the MSI tool.

Single card : 20090 score with 3050 mhz on the Xeon.
CF : 20875
now let's see if this goes up with overclock on the cpu.

CPU at 3500mhz : 24188.
Hmm, strange ?

Massman · 12th October 2009, 22:16

Why strange?

Gamer · 12th October 2009, 22:17

That much improvement on 500mhz overclock ?
You could be right it's not strange

Massman · 12th October 2009, 22:18

Just one giant CPU bottleneck

jmke · 12th October 2009, 22:21

Yup, HD 5870 alone is already borderline CPU bottlenecked even at 1920x1200 with AA/AF in most games, only Crysis Warhead DX10 VHQ can still stress the card and NEEDS CF to deliver playable FPS

benchmarks with resolution of 1280x1024? HD 5870 laughs at them

in CF you're completely CPU bottlenecked, you'll need Core i9 at 8Ghz to get a GPU bottleneck again

Gamer · 12th October 2009, 22:22

hmm, this cpu goes 80° stressed on 1.35vcore, crappy IHS

We should cool the cards with water, maybe 1100 on the core would be possible ?

12th October 2009, 20:11	#21
Gamer [M] Reviewer Join Date: May 2002 Posts: 4,587	Yes please, for 01 __________________

12th October 2009, 20:12	#22
leeghoofd [M] Reviewer Join Date: Dec 2008 Posts: 3,209	test the card too in crossfire Luc, max GPU/RAM clocks might be a bit lower then... but the cards looked very promising on air Need my REX HD ? so you won't need to reinstall everything from sratch besides the ATI drivers... __________________

12th October 2009, 20:57	#23
Massman [M] Reviewer Join Date: Nov 2004 Location: Waregem Posts: 6,466	Are you using Afterburner for extra voltage? __________________

12th October 2009, 21:13	#24
Gamer [M] Reviewer Join Date: May 2002 Posts: 4,587	Yep, tried 1050 on 1.3vgpu = crash. Although temps are not above 60° ??? Trying 1.350vgpu now @ 1050 mhz, so far so good in first test on 3d06. FAIL.. Screenfailure, blank screen but benchmark did go further resulting in low score. Max settings now : 1.3vgpu/1025mhz for single GPU. __________________ Last edited by Gamer : 12th October 2009 at 21:22.

12th October 2009, 21:45	#25
Gamer [M] Reviewer Join Date: May 2002 Posts: 4,587	no 1025 on Crossfire, backing down to 1000 If you use both CCC and MSI afterburner, second card goes back to stock. So make sure all is ok when you use the MSI tool. Single card : 20090 score with 3050 mhz on the Xeon. CF : 20875 now let's see if this goes up with overclock on the cpu. CPU at 3500mhz : 24188. Hmm, strange ? __________________ Last edited by Gamer : 12th October 2009 at 22:07.

12th October 2009, 22:16	#26
Massman [M] Reviewer Join Date: Nov 2004 Location: Waregem Posts: 6,466	Why strange? __________________

12th October 2009, 22:17	#27
Gamer [M] Reviewer Join Date: May 2002 Posts: 4,587	That much improvement on 500mhz overclock ? You could be right it's not strange __________________

12th October 2009, 22:18	#28
Massman [M] Reviewer Join Date: Nov 2004 Location: Waregem Posts: 6,466	Just one giant CPU bottleneck __________________

12th October 2009, 22:21	#29
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	Yup, HD 5870 alone is already borderline CPU bottlenecked even at 1920x1200 with AA/AF in most games, only Crysis Warhead DX10 VHQ can still stress the card and NEEDS CF to deliver playable FPS benchmarks with resolution of 1280x1024? HD 5870 laughs at them in CF you're completely CPU bottlenecked, you'll need Core i9 at 8Ghz to get a GPU bottleneck again __________________

12th October 2009, 22:22	#30
Gamer [M] Reviewer Join Date: May 2002 Posts: 4,587	hmm, this cpu goes 80° stressed on 1.35vcore, crappy IHS We should cool the cards with water, maybe 1100 on the core would be possible ? __________________ Last edited by Gamer : 12th October 2009 at 22:25.

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