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MATRIX 7970/280x CF in 1440/1600p - Experiences

b3kab3ka
Level 7
Hello again, are there any other users of CF of Matrix cards 280x or 7970 in 1440p/1600p?
I'm experiencing major stuttering with Frame Pacing enabled in 13.11 V1/V3 beta drivers.
It's happening in any 3D Application every 2-3 seconds. I will try too record it and upload to youtube later.
Performance is a lot better without Frame Pacing enabled but still a little choppy.

Have anyone experienced it too? Is this famous micro stuttering in ATI setups?
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12 REPLIES 12

HiVizMan
Level 40
There have been some reports of HD7970 matrix cards doing this - there are a couple of thread one I think you have just posted in? Sorry I can not help further as I no longer have the cards.
To help us help you - please provide as much information about your system and the problem as possible.

czeslaw
Level 7
Is it happening when using only R9 without cf ?
M7H / Matrix 7970 P (flashed to R9 280x Matrix P) + 2 x DELL U2713HM / i7 4790k + h100i push&pull / 3 x Kingston 3k SSD 120GB / 1 x Corsair ForceGT 120GB / TridentX 2400 2x8gb / Corsair Graphite 600t case + AX1200i + NZXT IU01 + Bitfenix USB3.0 internal adapter

b3kab3ka
Level 7
No, actually without CF gameplay is fine. Not perfect, but minor stuttering isn't bothering at all.
Issues are with CF setup.

b3kab3ka wrote:
No, actually without CF gameplay is fine. Not perfect, but minor stuttering isn't bothering at all.
Issues are with CF setup.


you really are an understanding man 🙂


if it were me,
for every 1 stutter, I kill a baby bunny
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czeslaw
Level 7
Minor stuttering when using only R9 or 7970? Try both cards one by one... maybe one of them is causing issues and the other one is fine.
M7H / Matrix 7970 P (flashed to R9 280x Matrix P) + 2 x DELL U2713HM / i7 4790k + h100i push&pull / 3 x Kingston 3k SSD 120GB / 1 x Corsair ForceGT 120GB / TridentX 2400 2x8gb / Corsair Graphite 600t case + AX1200i + NZXT IU01 + Bitfenix USB3.0 internal adapter

b3kab3ka
Level 7
Tested them that way too. Cards are perfectly fine without CF. I have previously used 660Ti in SLI and must say that gaming experience based on BF3 was much much better.

Using R9s.

czeslaw
Level 7
I don't know if you want to try, but I would check how it behaves after flashing 7970 U2 and U3 to U2/U3 from your R9 respectively and then crossfire. Just save it to file with techpowerup gpuz and then force flash with atiwinflash from console. Backup your 7970 bioses first!!

EDIT: Maybe I missundertood, U R trying to CF 7970 + R9 or do U have 2xR9 and also asking 7970 users for help?
M7H / Matrix 7970 P (flashed to R9 280x Matrix P) + 2 x DELL U2713HM / i7 4790k + h100i push&pull / 3 x Kingston 3k SSD 120GB / 1 x Corsair ForceGT 120GB / TridentX 2400 2x8gb / Corsair Graphite 600t case + AX1200i + NZXT IU01 + Bitfenix USB3.0 internal adapter

b3kab3ka
Level 7
2x R9 setup here. Got Double BIOS with U2/U3 versions.

What motherboard? Try setting both cards to gen3 / preset3 in bios ... Default gpu to pcie, render standby enabled, multi monitor disabled.

Are 2nd Radeon's fans running while in CF? Try disabling ULPS in registry.
M7H / Matrix 7970 P (flashed to R9 280x Matrix P) + 2 x DELL U2713HM / i7 4790k + h100i push&pull / 3 x Kingston 3k SSD 120GB / 1 x Corsair ForceGT 120GB / TridentX 2400 2x8gb / Corsair Graphite 600t case + AX1200i + NZXT IU01 + Bitfenix USB3.0 internal adapter