First post, by porschemad911
Hi,
I'm currently running a GTX 680 in my Windows XP gaming box, but would like to run SLI just for fun and frustration. Thinking of using Kepler GPUs (eg 2 x GTX 660 Ti) since the GTX 680 is working really nicely. Wondering if anyone knows a definitive answer about Kepler SLI support in Windows XP? I'm trying to piece together bits of information from all over the place to work out an answer before buying some cards to test it out.
I found a previous forum post in an old thread stating that:
Kreshna Aryaguna Nurzaman wrote on 2018-07-08, 16:40:Some advice: […]
Some advice:
- The latest GeForce that supports Windows XP is GTX 780 Ti and GTX TITAN, but don't expect SLI.
- The latest GeForce that supports dual GPU SLI on Windows XP is GTX 580.
- The latest GeForce that supports quad SLI on Windows XP is 7950 GX2.
Nvidia has a knowledge base article on SLI support in Windows XP that states:
wrote:The following SLI features are not supported on Windows XP: […]
The following SLI features are not supported on Windows XP:
- Geforce GTX 680, 670 SLI
- Quad SLI technology using GeForce GTX 590, GeForce 9800 GX2 or GeForce GTX 295
- 3-way SLI technology
- Hybrid SLI
- SLI multi-monitor support
I am using Nvidia drivers 327.23, and the release notes state the following about SLI support in Windows XP:
wrote:SLI Support The following SLI features are not support on Windows XP: […]
SLI Support
The following SLI features are not support on Windows XP:
- GeForce GTX 680 SLI
- Quad SLI technology using GeForce GTX 590, GeForce 9800 GX2 or GeForce GTX
295- 3-way SLI technology
- Hybrid SLI
- SLI multi-monitor support
And also about Kepler in particular:
wrote:Kepler GPU Limitations SLI Support […]
Kepler GPU Limitations
SLI Support
- There is no support for SLI frame rendering (AFR/SFR) or SLI FSAA.
Now look at Nvidia's SLI technology guide, if AFR, SFR, Hybrid and SLIAA are not supported , it would seem that for Kepler on Windows XP that really only leave Compatibility Mode SLI, which seems fairly useless, ie 'In this mode, only GPU1 is used by the graphics API device (or context) and any other GPU in the system may be idle, used on a separate device (for either a graphics or compute API), or used by other applications. This offers no graphics performance scaling but ensures compatibility.'
Is Fermi really the last architecture with proper Windows XP SLI support? That would be a shame, Kepler really does seem a better architecture.