View Single Post
Old 01-15-09, 06:54 PM   #3
walterman
Rayne
 
walterman's Avatar
 
Join Date: Oct 2003
Posts: 1,525
Smile Re: Fastest setup? Quad SLI GTX 295 or Tri SLI GTX 285

Quote:
Shading power:

4 x 1242 MHz = 4968 MHz
3 x 1476 MHz = 4428 MHz

12% win for the quad SLI.


Bandwidth:

4 x 448 bit x 1000 MHz x 2 = 448000 MB/s
3 x 512 bit x 1242 MHz x 2 = 476928 MB/s

6% win for the tri SLI.
I guess that with some overclocking, the Tri GTX285 SLI could end faster in shading power too. It should be more easy for the driver to control 3 GPUs, rather than 4. And the larger frame buffer should help with high resolutions & AA levels.
__________________
ASUS Rampage Formula X48 | Xeon 3350 @ 3.6 GHz (450x8/1.26v) | 4x1GB OCZ DDR2 PC2-6400 Reaper CL3 @ 900 MHz 3-4-4-15 | 1 x eVGA GTX 285 SSC | 1 x ASUS EN8800GTX (PhysX/CUDA -> Burnt by nVidia 196.75 driver) | X-Fi Titanium Fatal1ty PCIe | 1 x Intel X25-M G2 80GB | 2 x 750GB WD RE2 7500AYYS SATA2 16MB | Samsung SH-B083L SATA | Enermax Revolution 1250W | Samsung SyncMaster 275T 27" 1920x1200 | Thermaltake Black Armor | BloodRayne 2 FSAA Patch
walterman is offline   Reply With Quote