GeForce GTX 1080 vs GeForce GTX 965M

Intro

Compare those specifications to the GeForce GTX 965M, which has GPU core speed of 944 MHz, and 2048 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is made up of 1024 SPUs, 64 TAUs, and 32 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 1080		21942 points
GeForce GTX 965M		5650 points
	Difference: 16292 (288%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
GeForce GTX 1080		180 Watts
	Difference: 120 Watts (200%)

Memory Bandwidth

In theory, the GeForce GTX 1080 should be a lot faster than the GeForce GTX 965M overall. (explain)

GeForce GTX 1080		327680 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 263680 (412%)

Texel Rate

The GeForce GTX 1080 is a lot (about 326%) better at anisotropic filtering than the GeForce GTX 965M. (explain)

GeForce GTX 1080		257120 Mtexels/sec
GeForce GTX 965M		60416 Mtexels/sec
	Difference: 196704 (326%)

Pixel Rate

The GeForce GTX 1080 should be a lot (about 240%) more effective at FSAA than the GeForce GTX 965M, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 1080		102848 Mpixels/sec
GeForce GTX 965M		30208 Mpixels/sec
	Difference: 72640 (240%)

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 maximum amount of information (measured in MB per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total amount of texture units of the card by the core 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 per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.