GeForce GTX 970 vs GeForce GTX 970M

Intro

Compare that to the GeForce GTX 970M, which comes with core speeds of 924 MHz on the GPU, and 1000 MHz on the 3072 MB of GDDR5 memory. It features 1280 SPUs as well as 80 Texture Address Units and 48 Rasterization Operator Units.

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 970		10867 points
GeForce GTX 970M		7520 points
	Difference: 3347 (45%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
GeForce GTX 970		145 Watts
	Difference: 70 Watts (93%)

Memory Bandwidth

The GeForce GTX 970 should theoretically be a lot faster than the GeForce GTX 970M overall. (explain)

GeForce GTX 970		224000 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 128000 (133%)

Texel Rate

The GeForce GTX 970 will be much (about 48%) more effective at AF than the GeForce GTX 970M. (explain)

GeForce GTX 970		109200 Mtexels/sec
GeForce GTX 970M		73920 Mtexels/sec
	Difference: 35280 (48%)

Pixel Rate

The GeForce GTX 970 should be a lot (more or less 52%) better at anti-aliasing than the GeForce GTX 970M, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 970		67200 Mpixels/sec
GeForce GTX 970M		44352 Mpixels/sec
	Difference: 22848 (52%)

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 max amount of information (in units of MB per second) that can be transported 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 should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 can be processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called 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 - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.