GeForce GTX 460 (OEM) vs GeForce GTX 970M

Intro

Compare those specs to the GeForce GTX 970M, which comes with core speeds of 924 MHz on the GPU, and 1000 MHz on the 3072 MB of GDDR5 memory. It features 1280 SPUs along with 80 TAUs and 48 Rasterization Operator 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 13% quicker than the GeForce GTX 970M overall, because of its greater bandwidth. (explain)

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

Texel Rate

The GeForce GTX 970M will be quite a bit (approximately 103%) faster with regards to texture filtering 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

If using a high screen resolution is important to you, then the GeForce GTX 970M is the winner, and very much so. (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 maximum amount of information (measured in MB per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card 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 number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.