Hello,
I have recently purchased a 2nd ATI Radeon HD 4870 1GB to use in Crossfire. After connecting both bridges, reinstalling new drivers and testing out the cards, it seems there are some issues.
1) Games do not see an increase in performance at all, in fact most see a reduction in performance. (Crysis has a lot of fragmenting when I play)
System Specs:
AMD Phenom 9600 2.3GHz 2MB L3 Stock
Antec EA650 650W Continuous Power ATX12V Ver.2.2 / EPS12V version 2.91
G.SKILL 8GB (4 x 2GB) DDR2 800 F2-6400CL5D-4GBPQ
GIGABYTE GA-MA790GP-UD4H AM2+/AM2 AMD 790GX
SAPPHIRE 100259-1GL Radeon HD 4870 1GB (x2 in Crossfire)
Windows Vista x64 Ultimate w/ TLB Errata disabled in BIOS (haven't had any problems)
I'm thinking it's either CPU bottleneck or power supply, what do you all think?
Thanks,
-Mike
I have recently purchased a 2nd ATI Radeon HD 4870 1GB to use in Crossfire. After connecting both bridges, reinstalling new drivers and testing out the cards, it seems there are some issues.
1) Games do not see an increase in performance at all, in fact most see a reduction in performance. (Crysis has a lot of fragmenting when I play)
System Specs:
AMD Phenom 9600 2.3GHz 2MB L3 Stock
Antec EA650 650W Continuous Power ATX12V Ver.2.2 / EPS12V version 2.91
G.SKILL 8GB (4 x 2GB) DDR2 800 F2-6400CL5D-4GBPQ
GIGABYTE GA-MA790GP-UD4H AM2+/AM2 AMD 790GX
SAPPHIRE 100259-1GL Radeon HD 4870 1GB (x2 in Crossfire)
Windows Vista x64 Ultimate w/ TLB Errata disabled in BIOS (haven't had any problems)
I'm thinking it's either CPU bottleneck or power supply, what do you all think?
Thanks,
-Mike