GeForce GTX 460 1GB vs GeForce GTX 965M

Intro

Compare that to the GeForce GTX 965M, which comes with a core clock frequency of 944 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is comprised of 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 100 Watts (167%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 1GB should be a lot faster than the GeForce GTX 965M overall. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 51200 (80%)

Texel Rate

The GeForce GTX 965M should be quite a bit (about 60%) faster with regards to anisotropic filtering than the GeForce GTX 460 1GB. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce GTX 460 1GB		37800 Mtexels/sec
	Difference: 22616 (60%)

Pixel Rate

The GeForce GTX 965M will be quite a bit (about 40%) more effective at anti-aliasing than the GeForce GTX 460 1GB, and also able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce GTX 460 1GB		21600 Mpixels/sec
	Difference: 8608 (40%)

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 (in units of MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher 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 most pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.