GeForce GTX 460 SE vs GeForce GTX 965M

Intro

Compare those specifications to the GeForce GTX 965M, which has a core clock speed of 944 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 1024 SPUs, 64 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 90 Watts (150%)

Memory Bandwidth

Performance-wise, the GeForce GTX 460 SE should theoretically be a lot better than the GeForce GTX 965M overall. (explain)

GeForce GTX 460 SE		108800 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 44800 (70%)

Texel Rate

The GeForce GTX 965M is quite a bit (about 94%) more effective at anisotropic filtering than the GeForce GTX 460 SE. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 29216 (94%)

Pixel Rate

The GeForce GTX 965M should be quite a bit (more or less 45%) faster with regards to FSAA than the GeForce GTX 460 SE, and should be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce GTX 460 SE		20800 Mpixels/sec
	Difference: 9408 (45%)

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 max amount of information (in units of MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once 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 AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total texture units by the core clock 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 most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.