NVIDIA’s GeForce GTX 750 Ti is not really much to talk about especially when it comes to gaming. Although it is something that the cryptomining crowd should definitely take a look at for its price-performance ratio and low power draw.
AMD’s R9 290X is pretty much the king of cryptomining. This is because the way AMD designs its shaders — more simple shaders that run at a low frequency clock versus Nvidia’s layout of preferring less but more complex shaders — the card’s architecture is better geared towards cracking the SCRYPT algorithm used by Litecoin. Currently NVIDIA’s Maxwell cards (GTX 750 Ti & GTX 750) are not going to take this mining crown from AMD, but they will cause a threat because of their price-performance ratio and low power draw.
There have been many tests done across the web and the Maxwell-based GTX 750 Ti can mine at 242 KH/s and when the latest CUDAminer is used it goes up to 263 KH/s. Now this does not come close to the Radeon R9 290X’s mining rate of 1002 KH/s, but consider think about this: the GTX 750 Ti has an average price of $140 and power draw of 60W. If we compare that to the R9 290X at $700 (if you can find one) and can require up to 600W of power. If you would build a rig with six GTX 750 Ti’s would have a hash rate of 1578 KH/s, but would consume less power and would only cost $900 (just a little more compared to the R9 290X).
You also have to keep in mind that NVIDIA’s high-end Maxwell cards, which we will see later this year will be NVIDIA’s answer as far as mining goes.