GeForce GTX 465 vs GeForce GTX 970M

Intro

Compare those specifications to the GeForce GTX 970M, which uses a 28 nm design. nVidia has set the core frequency at 924 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this model. It features 1280 SPUs as well as 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 465		200 Watts
	Difference: 125 Watts (167%)

Memory Bandwidth

The GeForce GTX 465, in theory, should perform a bit faster than 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 quite a bit (more or less 177%) faster with regards to texture filtering than the GeForce GTX 465. (explain)

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

Pixel Rate

The GeForce GTX 970M will be a lot (about 128%) better at full screen anti-aliasing than the GeForce GTX 465, and also should be able to handle higher resolutions better. (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: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 can be applied per second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.