GeForce GTX 460 vs GeForce GTX 650

Intro

Compare those specs to the GeForce GTX 650, which uses a 28 nm design. nVidia has clocked the core speed at 1058 MHz. The GDDR5 RAM runs at a frequency of 1250 MHz on this model. It features 384 SPUs along with 32 TAUs and 16 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 460		2557 points
GeForce GTX 650		2263 points
	Difference: 294 (13%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The GeForce GTX 460, in theory, should be just a bit faster than the GeForce GTX 650 overall. (explain)

GeForce GTX 460		86400 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 6400 (8%)

Texel Rate

The GeForce GTX 460 is just a bit (more or less 12%) better at anisotropic filtering than the GeForce GTX 650. (explain)

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

Pixel Rate

The GeForce GTX 650 should be a little bit (more or less 4%) more effective at full screen anti-aliasing than the GeForce GTX 460, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 650		16928 Mpixels/sec
GeForce GTX 460		16200 Mpixels/sec
	Difference: 728 (4%)

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 MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.