GeForce GTX 260 vs GeForce GTX 965M

Intro

Compare all that to the GeForce GTX 965M, which makes use of a 28 nm design. nVidia has clocked the core speed at 944 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this card. It features 1024 SPUs along with 64 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
GeForce GTX 260		182 Watts
	Difference: 122 Watts (203%)

Memory Bandwidth

The GeForce GTX 260, in theory, should perform quite a bit faster than the GeForce GTX 965M in general. (explain)

GeForce GTX 260		111888 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 47888 (75%)

Texel Rate

The GeForce GTX 965M will be much (more or less 64%) faster with regards to texture filtering than the GeForce GTX 260. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce GTX 260		36864 Mtexels/sec
	Difference: 23552 (64%)

Pixel Rate

The GeForce GTX 965M should be a lot (approximately 87%) more effective at anti-aliasing than the GeForce GTX 260, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce GTX 260		16128 Mpixels/sec
	Difference: 14080 (87%)

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 data (in units of megabytes per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines 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 output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.