How to confirm that your macbook pro has a nvidia card?

I have mid 2014, and for them spec lists GeForce750M, and

./bin/x86_64/darwin/release/deviceQuery
./bin/x86_64/darwin/release/deviceQuery Starting…

CUDA Device Query (Runtime API) version (CUDART static linking)

cudaGetDeviceCount returned 35
-> CUDA driver version is insufficient for CUDA runtime version
Result = FAIL

$kextstat | grep -i cuda
192 0 0xffffff7f82e6f000 0x2000 0x2000 com.nvidia.CUDA (1.1.0) 5AFE550D-6361-3897-912D-897C13FF6983 <4 1>

however, I don’t see nvidia in ioreg dump.
Thanks!