Quadro P1000 vs T600 benchmarks
According to the hardwareDB Benchmark, the T600 GPU is faster than the Quadro P1000 in gaming.
The Quadro P1000 has a significantly higher core clock speed. This is the frequency at which the graphics core is running at. While not necessarily an indicator of overall performance, this metric can be useful when comparing two GPUs based on the same architecture. In addition, the Quadro P1000 also has a slightly higher boost clock speed. This is a frequency that can be reached if the GPU is cooled sufficiently and has enough power.
In addition, the T600 has a slightly lower TDP at 40 W when compared to the Quadro P1000 at 47 W. Heat output doesn't match power consumption directly but, it's a good estimate.
According to the results of the hardwareDB benchmark utility, the T600 is faster than the Quadro P1000.