GeForce GTX 460 SE vs GeForce GTX 650

Intro

Compare that to the GeForce GTX 650, which comes with core speeds of 1058 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs as well as 32 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 86 Watts (134%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 SE is 36% faster than the GeForce GTX 650 in general, due to its higher data rate. (explain)

GeForce GTX 460 SE		108800 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 28800 (36%)

Texel Rate

The GeForce GTX 650 is a small bit (more or less 9%) faster with regards to texture filtering than the GeForce GTX 460 SE. (explain)

GeForce GTX 650		33856 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 2656 (9%)

Pixel Rate

The GeForce GTX 460 SE will be quite a bit (more or less 23%) more effective at FSAA than the GeForce GTX 650, and will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 3872 (23%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.