GeForce 920M vs GeForce GTX 460

Intro

Compare all of that to the GeForce GTX 460, which has core speeds of 675 MHz on the GPU, and 900 MHz on the 768 MB of GDDR5 memory. It features 336 SPUs along with 56 Texture Address Units and 24 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 920M		1180 points
	Difference: 1377 (117%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTX 460 should be quite a bit faster than the GeForce 920M in general. (explain)

GeForce GTX 460		86400 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 72000 (500%)

Texel Rate

The GeForce GTX 460 will be quite a bit (about 24%) more effective at AF than the GeForce 920M. (explain)

GeForce GTX 460		37800 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 7272 (24%)

Pixel Rate

The GeForce GTX 460 should be a lot (about 112%) faster with regards to FSAA than the GeForce 920M, and should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 460		16200 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 8568 (112%)

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: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 applied in one second. This number is calculated by multiplying the total texture units of the card by the core clock 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 most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs 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 also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.