GeForce GTX 460 (OEM) vs GeForce GTX 970M

Intro

Compare those specs to the GeForce GTX 970M, which comes with GPU core speed of 924 MHz, and 3072 MB of GDDR5 memory running at 1000 MHz through a 192-bit bus. It also is comprised of 1280 Stream Processors, 80 TAUs, and 48 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 75 Watts (100%)

Memory Bandwidth

In theory, the GeForce GTX 460 (OEM) should be a small bit faster than the GeForce GTX 970M in general. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 12800 (13%)

Texel Rate

The GeForce GTX 970M is much (more or less 103%) more effective at AF than the GeForce GTX 460 (OEM). (explain)

GeForce GTX 970M		73920 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 37520 (103%)

Pixel Rate

The GeForce GTX 970M will be quite a bit (approximately 113%) better at AA than the GeForce GTX 460 (OEM), and will be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 970M		44352 Mpixels/sec
GeForce GTX 460 (OEM)		20800 Mpixels/sec
	Difference: 23552 (113%)

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 information (counted in MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total amount of 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 applied per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.