Gigabyte AMD Radeon HD 7870 2 GB GDDR5 DVI-I/HDMI/2x Mini-Displayport PCI-Express 3.0 Graphic Card GV-R787OC-2GD
AMD Catalyst Driver Version, and Driver History
12.11 Beta 8, tested before on 12.11 Beta 4 and 12.10.
- Windows 7 64-bit
Memory clock runs at 1250Mhz at idle (unlike GPU clock which goes down from 1150Mhz -> 400Mhz). Before 12.10, I'd see numbers something like 300/150Mhz at idle.
Motherboard or System Make & Model
Display Device(s) and Connection(s) Used
Primary: Dell U2412 - DVI
Secondary: Dell 2007WFP - DisplayPort to DVI adapter.
Applications and Games
i5-750 quad core, no OC, 4 cores at 2.67Mhz
Motherboard BIOS Version
- AWARD F10 6/28/2010
System Memory Type & Amount
- 12GB G.Skill (2x4GB + 2x2GB), no OC
- My 7870 is OCed to 1150Mhz (up from 1100) and 1250Mhz (up from 1200), there is no issues with OC, temp at idle is around 31C and at full load about 48C. System is pretty stable. However, since 12.10, I've noticed that Memory Clock at idle load does not go down to what it used to be (if I recall it was something around 150Mhz-300Mhz). On the other hand, GPU clock goes down to 400Mhz (as expected). I recall it could have been around 300Mhz, but since then I added a second monitor.
I found out a smiliar issue in 12.11 beta driver release notes, but it says that it had been fixed in Beta8 - unfortunately it doesn't work for me. Please advice.
Thanks a lot,
I love AMD cards, they simply rock!