So a few benchmarks now with
MSI GTX 660 TwinFrozr III OC 2GB
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Heaven Benchmark v3.0 Basic
FPS: 33.4
Scores: 841
Min FPS: 20.3
Max FPS: 83.0
Hardware
Binary: Windows 32bit Visual C++ 1600 Release Mar 7 2012 Operating system: Windows Vista (build 6002, Service Pack 2) 64bit
CPU model: AMD Phenom(tm) II X6 1090T Processor
CPU flags: 3599MHz MMX+ 3DNow!+ SSE SSE2 SSE3 SSE4A HTT
GPU model: NVIDIA GeForce GTX 660 9.18.13.0697 2048Mb
Settings
Render: direct3d11 Mode: 1920x1080 8xAA fullscreen
Shaders: high Textures: high
Filter: trilinear
Anisotropy: 16x Occlusion: enabled
Refraction: enabled Volumetric: enabled
Tessellation: extreme
3Dmark11 Performance - 6241
http://www.3dmark.com/3dm11/4618366
3Dmark03 Performance - 71443
http://www.3dmark.com/3dm03/6481892
So this translates into the following !
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Heaven Benchmark v3.0 Basic
Settings
Render: direct3d11 Mode: 1920x1080 8xAA fullscreen
Shaders: high Textures: high
Filter: trilinear
Anisotropy: 16x Occlusion: enabled
Refraction: enabled Volumetric: enabled
Tessellation: extreme
2x Gigabyte GTX 460 1GB OC SLi
FPS: 32.4
Scores: 817
vs
MSI GTX 660 TwinForzr III OC 2GB
FPS: 33.4
Scores: 841
2x GTX 460 1GB 3Dmark11 Performance - 5954 vs
1x GTX 660 3GB 3Dmark11 Performance - 6241
2x GTX 460 1GB 3Dmark03 Performance - 85327 vs
1x GTX 660 2GB 3Dmark03 Performance - 71443
The 2x GTX 460 outclass the single GTX 660 in 3Dmark03, but in all the other benchmark the GTX 660 just wins by a margin.
This is really what I hoped for. Still the same performance overall, but the noise has been
heavily reduced. The GTX 660 idles at 30*c and max out at 60*c.
I love this card.... might be going SLi with one more

A couple of pictures