Is is possible to use a dedicated OpenCL Card?

vunyunt

Honorable
Mar 27, 2013
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10,510
Specifically, for tressfx in Tomb Raider.

I have a GTX 650, and an old GTS 450 (surprisingly, the 450 can handle high to ultra high settings with tressfx disabled @1600x900 resolution, 4x AA sample, when paired with AMD A8 3850 CPU with its IGFX disabled.)

Now that I have a new PC, I don't want to just trash the 450 to bin. Is it possible to use the 450 as a dedicated opencl card? (I know it is possible for CUDA/Physx)

By the way, if I want to run these two cards, how much power supply will I need? Below is my system's specs.

PSU: 525Watt (Can upgrade if neede)
Mobo: Asus M5A99X EVO R2.0
CPU: AMD FX-8350
RAM: Single 1600Mhz DDR3 8GB RAM
GPU: NVidia GTX650 2GB
HDD: 1TB 7200rpm HDD
OS: Windows 8 Pro
 

vunyunt

Honorable
Mar 27, 2013
4
0
10,510
Well, turn out that you can't (unless I missed something, and it might be enabled in the future). However, I discovered that a single GTX650 2GB is enough to render ultimate settings (Everything Max with TressFX Enabled) @ 1280 x 720 resolution. (Yes, it is not 60fps and only 1280 x 720, but it is playable, and it is a GTX650 only, not 680)

And yes, 525watt PSU is enough to power a GTX650 and a GTS450 with the above-mentioned specs. (I tested it by running blender cycle render simultaneously on all GPU and CPU, though adding a chassis fan is a must if this configuration is to be used)