GeForce GTX 460 2GB vs GeForce GTX 965M

Intro

Compare those specifications to the GeForce GTX 965M, which uses a 28 nm design. nVidia has set the core frequency at 944 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this model. It features 1024 SPUs as well as 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 2GB		160 Watts
	Difference: 100 Watts (167%)

Memory Bandwidth

In theory, the GeForce GTX 460 2GB is 80% quicker than the GeForce GTX 965M in general, because of its higher bandwidth. (explain)

GeForce GTX 460 2GB		115200 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 51200 (80%)

Texel Rate

The GeForce GTX 965M is much (approximately 60%) better at AF than the GeForce GTX 460 2GB. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce GTX 460 2GB		37800 Mtexels/sec
	Difference: 22616 (60%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 965M is a better choice, by a large margin. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce GTX 460 2GB		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: Bandwidth is the maximum amount of information (counted in MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If 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, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.