[SOLVED] SLI Performance issue with two GTX 1070

[Gokhan666]

Hello, I recently added another GPU using SLI bridge, the performance of the GPUs is the same even worse sometimes.

I made sure that SLI is enabled in the Nvidia control panel, the driver is up to date.

Summary of parts:

Operating System
Windows 11 Pro 64-bit
CPU
Intel Core i7 6700K @ 4.00GHz 28 °C
Skylake 14nm Technology
RAM
16.0GB Dual-Channel Unknown (14-15-15-39)
Motherboard
MSI Z170A GAMING M7 (MS-7976) (U3E1) 42 °C
Graphics
MSI MAG274QRF (2560x1440@165Hz)
4095MB NVIDIA GeForce GTX 1070 (ZOTAC International) 61 °C
4095MB NVIDIA GeForce GTX 1070 (ZOTAC International) 56 °C
SLI Enabled
Storage
238GB Samsung SSD 850 PRO 256GB (SATA (SSD)) 27 °C
698GB Hitachi HTS547575A9E384 (SATA ) 30 °C
931GB Samsung SSD 970 EVO Plus 1TB (Unknown (SSD))

 

[rgd1101]

what game? most new game don't support sli

brand and model of the psu? those temp is on idle?

 

[sizzling]

As above, depends on the game. This is why SLi is generally not recommended these days. Your fps could also be limited by the cpu, again depends on the game but also resolution and game settings.

 

[MEMOFLEX]

Unfortunately SLI has been depreciated for some time now and without the support from nvidia and the games companies then it is a dead end, certainly with newer titles.

Even when SLI was popular, performance often varied from game to game depending on support with 2 cards often underperformed a single one.

Long gone are the days of being able to buy 2 mid range GPUs and outperform a top end one! Possibly one of the key reasons why nvidia moved away from the technology

 

[Gokhan666]

what game? most new game don't support sli

brand and model of the psu? those temp is on idle?

Far Cry 6, Battlefield V, AC Valhalla
Adata XPG 750G-BKCEU Core Reactor 750W 80+ Gold
The temps are on idle

 

[DSzymborski]

The PSU is fine.

However, this performance is not unexpected for new games. Multi-GPU solutions are as dead as the stagecoach at this point. They're frequently even worse than a single GPU in the newest games. Most of the new cards don't even support SLI and Nvidia stopped including any new SLI driver profiles at the start of 2021.