GeForce GTX 870M vs GeForce GTX 950M

Intro

Compare all of that to the GeForce GTX 950M, which comes with a GPU core clock speed of 914 MHz, and 2048 MB of DDR3 memory running at 1000 MHz through a 128-bit bus. It also is made up of 640 Stream Processors, 40 Texture Address Units, and 16 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 870M		4770 points
GeForce GTX 950M		3330 points
	Difference: 1440 (43%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
GeForce GTX 870M		110 Watts
	Difference: 55 Watts (100%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 870M should be much faster than the GeForce GTX 950M overall. (explain)

GeForce GTX 870M		96000 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 64000 (200%)

Texel Rate

The GeForce GTX 870M is much (about 188%) more effective at texture filtering than the GeForce GTX 950M. (explain)

GeForce GTX 870M		105392 Mtexels/sec
GeForce GTX 950M		36560 Mtexels/sec
	Difference: 68832 (188%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 870M is the winner, by a large margin. (explain)

GeForce GTX 870M		22584 Mpixels/sec
GeForce GTX 950M		14624 Mpixels/sec
	Difference: 7960 (54%)

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 information (counted in megabytes per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video 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 number of Raster Operations Pipelines by the clock speed of the card. 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 output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.