GeForce GTX 465 vs GeForce GTX 970M

Intro

Compare those specifications to the GeForce GTX 970M, which makes use of a 28 nm design. nVidia has clocked the core frequency at 924 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this particular model. It features 1280 SPUs as well as 80 TAUs and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
GeForce GTX 465		200 Watts
	Difference: 125 Watts (167%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 465 should in theory be a bit superior to the GeForce GTX 970M in general. (explain)

GeForce GTX 465		102592 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 6592 (7%)

Texel Rate

The GeForce GTX 970M is much (more or less 177%) faster with regards to AF than the GeForce GTX 465. (explain)

GeForce GTX 970M		73920 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 47212 (177%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 970M is superior to the GeForce GTX 465, by a large margin. (explain)

GeForce GTX 970M		44352 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 24928 (128%)

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 largest amount of information (counted in megabytes per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. 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 are processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core 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 processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.