After almost three happy years with the GTX 670 4GB SC in SLI on a 3770K, I decided to hand that down this week and build a new system around dual 970 FTW+. However, the performance increase in SLI does not seem to be holding up to what we came to expect in 670s. At least, not for me.
In reviews, I have seen claims of benchmarks showing the second 970 offers ~92% improvement. I'm seeing a 68% improvement. This seems weak.
The last tests I performed were 3DMark Fire Strike Extreme:
970 -- 5314
SLI -- 8946
SLI (10,365 graphics, 12,338 physics, 3669 combined).
On Unigine Heaven, I saw slightly better, but a huge drop in min fps in SLI:
970 -- 1306 51.8 25 117.9
SLI -- 2296 91.1 8.3 151.5
The highest VRAM usage during Unigine was 1201mb.
4790k
16GB 2133mhz @ 1600mhz
Asus Maximus VII Hero
Seasonic X-1050
Windows 7
Only drivers installed are latest NVIDIA and Intel's drivers for USB, SATA, and LAN.
Asus Swift PG278Qin gsync @ 144hz
I'm open to any input.
Regards.
post edited by Cronjob - 2015/01/26 11:07:19