UHD 630 vs GeForce GTX 660 specs and performance
According to the hardwareDB Benchmark, the GeForce GTX 660 GPU is faster than the UHD 630 in gaming.
The GeForce GTX 660 has a significantly higher core clock speed. The core clock speed (or base speed) is the frequency at which the GPU core runs. This metric makes sense when comparing GPUs of a similar architecture or generation. Despite this, the UHD 630 has a slightly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.
In addition, the UHD 630 has a significantly lower TDP at 15 W when compared to the GeForce GTX 660 at 140 W. This is not a measure of performance, but rather the amount of heat generated by the chip when running at its highest speed.
According to the results of the hardwareDB benchmark utility, the GeForce GTX 660 is faster than the UHD 630.