GeForce GTX 460 1GB vs GeForce GTX 650

Intro

Compare those specifications to the GeForce GTX 650, which has core clock speeds of 1058 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs along with 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 96 Watts (150%)

Memory Bandwidth

The GeForce GTX 460 1GB should in theory perform much faster than the GeForce GTX 650 overall. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 35200 (44%)

Texel Rate

The GeForce GTX 460 1GB will be a little bit (approximately 12%) better at texture filtering than the GeForce GTX 650. (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 3944 (12%)

Pixel Rate

The GeForce GTX 460 1GB is much (approximately 28%) faster with regards to AA than the GeForce GTX 650, and will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 4672 (28%)

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 largest amount of data (in units of megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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