True 4D Image Denoising on the GPU

Table 1

Comparison between three Nvidia GPUs, from three different generations, in terms of processor cores, memory bandwidth, size of shared memory, cache memory, and number of registers; MP stands for multiprocessor and GB/s stands for gigabytes per second. For the GTX 580, the user can for each kernel choose to use 48 KB of shared memory and 16 KB of L1 cache or vice versa.

Property/GPU	9800 GT	GTX 285	GTX 580
Number of processor cores	112	240	512
Normal size of global memory	512 MB	1024 MB	1536 MB
Global memory bandwidth	57.6 GB/s	159.0 GB/s	192.4 GB/s
Constant memory	64 KB	64 KB	64 KB
Shared memory per MP	16 KB	16 KB	48/16 KB
Float registers per MP	8192	16384	32768
L1 cache per MP	None	None	16/48 KB
L2 cache	None	None	768 KB