GeForce GTX 870M vs GeForce GTX 965M

Intro

Compare all of that 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 comprised of 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

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 965M		5650 points
GeForce GTX 870M		4770 points
	Difference: 880 (18%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
GeForce GTX 870M		110 Watts
	Difference: 50 Watts (83%)

Memory Bandwidth

Performance-wise, the GeForce GTX 870M should in theory be a lot superior to the GeForce GTX 965M in general. (explain)

GeForce GTX 870M		96000 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 32000 (50%)

Texel Rate

The GeForce GTX 870M is much (approximately 74%) more effective at anisotropic filtering than the GeForce GTX 965M. (explain)

GeForce GTX 870M		105392 Mtexels/sec
GeForce GTX 965M		60416 Mtexels/sec
	Difference: 44976 (74%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 965M is the winner, by far. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce GTX 870M		22584 Mpixels/sec
	Difference: 7624 (34%)

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 data (measured in MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one 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 video 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 most pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 reach the maximum fill rate.