GeForce 920M vs GeForce GTX 460 SE

Intro

Compare all that to the GeForce GTX 460 SE, which comes with a core clock speed of 650 MHz and a GDDR5 memory frequency of 850 MHz. It also uses a 256-bit bus, and makes use of a 40 nm design. It features 288 SPUs, 48 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 460 SE, in theory, should be much faster than the GeForce 920M in general. (explain)

GeForce GTX 460 SE		108800 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 94400 (656%)

Texel Rate

The GeForce GTX 460 SE will be a bit (more or less 2%) faster with regards to AF than the GeForce 920M. (explain)

GeForce GTX 460 SE		31200 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 672 (2%)

Pixel Rate

The GeForce GTX 460 SE should be a lot (more or less 173%) more effective at FSAA than the GeForce 920M, and able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 13168 (173%)

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 megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher 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 a second.

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