GeForce GTX 460 1GB vs GeForce GTX 965M

Intro

Compare that to the GeForce GTX 965M, which has a core clock speed of 944 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit bus, and uses 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 1GB		160 Watts
	Difference: 100 Watts (167%)

Memory Bandwidth

In theory, the GeForce GTX 460 1GB should be 80% faster than the GeForce GTX 965M in general, due to its higher data rate. (explain)

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

Texel Rate

The GeForce GTX 965M will be quite a bit (approximately 60%) faster with regards to AF 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 is a lot (more or less 40%) more effective at anti-aliasing than the GeForce GTX 460 1GB, and also will be able to handle higher resolutions without losing too much performance. (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: Bandwidth is the max amount of data (counted in MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that 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 amount 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 is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.