GeForce GTX 870M vs GeForce GTX 950

Intro

Compare those specs to the GeForce GTX 950, which has a core clock frequency of 1024 MHz and a GDDR5 memory speed of 1652 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It features 768 SPUs, 48 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 950		6536 points
GeForce GTX 870M		4770 points
	Difference: 1766 (37%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
GeForce GTX 870M		110 Watts
	Difference: 20 Watts (22%)

Memory Bandwidth

Theoretically, the GeForce GTX 950 should perform a little bit faster than the GeForce GTX 870M overall. (explain)

GeForce GTX 950		105728 MB/sec
GeForce GTX 870M		96000 MB/sec
	Difference: 9728 (10%)

Texel Rate

The GeForce GTX 870M will be a lot (about 114%) better at texture filtering than the GeForce GTX 950. (explain)

GeForce GTX 870M		105392 Mtexels/sec
GeForce GTX 950		49152 Mtexels/sec
	Difference: 56240 (114%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 950 is a better choice, by a large margin. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce GTX 870M		22584 Mpixels/sec
	Difference: 10184 (45%)

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 max amount of information (in units of megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the interface 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 better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.