I suppose this is as good a place as any to note some of my finds.
I have a Core i5 2500k running at 4.5GHz, 16GBs of DDR3, and two GTX 670s (with 4GBs of VRAM each). Using maximum settings at 1920x1080 with exception for LOD and occlusion culling being enabled because I don't see the point of disabling them:
Single-GPU: 10,860 - 96 Avg. FPS
Dual-GPU (SLI): 17,753 - 170 Avg. FPS
Dual-GPU (SLI) with 4x SGSSAA: 9,551 - 99 Avg. FPS (?)
I find it quite curious that 4x SGSSAA only halves the performance, when it should be cutting it to a quarter (hence the 4x). It performs far better than downsampling from 4k would, so if you have an Nvidia card and really want some good AA, it is the preferable option.
Also of note, the SLI scaling is quite good, at 77%. However, I would only recommend going with SLI if you already have an SLI-compatible motherboard and power supply unit, otherwise you're likely better off just upgrading to a bigger single-GPU card with what you'd save from not upgrading your MB and PSU (this was not relevant to me at the time because the only higher card was the 680, and Titans and the 700-series were not released yet).
I have a Core i5 2500k running at 4.5GHz, 16GBs of DDR3, and two GTX 670s (with 4GBs of VRAM each). Using maximum settings at 1920x1080 with exception for LOD and occlusion culling being enabled because I don't see the point of disabling them:
Single-GPU: 10,860 - 96 Avg. FPS
Dual-GPU (SLI): 17,753 - 170 Avg. FPS
Dual-GPU (SLI) with 4x SGSSAA: 9,551 - 99 Avg. FPS (?)
I find it quite curious that 4x SGSSAA only halves the performance, when it should be cutting it to a quarter (hence the 4x). It performs far better than downsampling from 4k would, so if you have an Nvidia card and really want some good AA, it is the preferable option.
Also of note, the SLI scaling is quite good, at 77%. However, I would only recommend going with SLI if you already have an SLI-compatible motherboard and power supply unit, otherwise you're likely better off just upgrading to a bigger single-GPU card with what you'd save from not upgrading your MB and PSU (this was not relevant to me at the time because the only higher card was the 680, and Titans and the 700-series were not released yet).
