CUDA-Z readings vs CUDA SysPrefs

[m4v3r1ck]

Why does CUDA-z show a different driver version?

CUDA-Z Report
=============
Version: 0.8.207 http://cuda-z.sf.net/
OS Version: Mac OS X 10.8.5 12F45
Driver Version: 8.16.76 310.40.00.20f04
Driver Dll Version: 5.50
Runtime Dll Version: 5.50

Core Information
----------------
Name: GeForce GTX 670
Compute Capability: 3.0
Clock Rate: 1084.5 MHz
PCI Location: 0:2:0
Multiprocessors: 7 (1344 Cores)
Therds Per Multiproc.: 2048
Warp Size: 32
Regs Per Block: 65536
Threads Per Block: 1024
Threads Dimensions: 1024 x 1024 x 64
Grid Dimensions: 2147483647 x 65535 x 65535
Watchdog Enabled: Yes
Integrated GPU: No
Concurrent Kernels: Yes
Compute Mode: Default
Stream Priorities: No

Memory Information
------------------
Total Global: 4095.81 MiB
Bus Width: 256 bits
Clock Rate: 3004 MHz
Error Correction: No
L2 Cache Size: 48 KiB
Shared Per Block: 48 KiB
Pitch: 2048 MiB
Total Constant: 64 KiB
Texture Alignment: 512 B
Texture 1D Size: 65536
Texture 2D Size: 65536 x 65536
Texture 3D Size: 4096 x 4096 x 4096
GPU Overlap: Yes
Map Host Memory: Yes
Unified Addressing: No
Async Engine: Yes, Unidirectional

Performance Information
-----------------------
Memory Copy
Host Pinned to Device: 2904.05 MiB/s
Host Pageable to Device: 2283.77 MiB/s
Device to Host Pinned: 3158.76 MiB/s
Device to Host Pageable: 2258.13 MiB/s
Device to Device: 69.1017 GiB/s
GPU Core Performance
Single-precision Float: 1795.56 Gflop/s
Double-precision Float: 130.024 Gflop/s
32-bit Integer: 517.175 Giop/s
24-bit Integer: 517.159 Giop/s

Generated: Thu Mar 13 11:26:56 2014

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