GeForce GTX 850M vs GeForce GTX 970

Intro

Compare those specs to the GeForce GTX 970, which features GPU clock speed of 1050 MHz, and 4096 MB of GDDR5 memory running at 1750 MHz through a 256-bit bus. It also is comprised of 1664 Stream Processors, 104 TAUs, and 64 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 970		10867 points
GeForce GTX 850M		3340 points
	Difference: 7527 (225%)

Zcash Mining Hash Rate

GeForce GTX 970		262 Sol/s
GeForce GTX 850M		49 Sol/s
	Difference: 213 (435%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
GeForce GTX 970		145 Watts
	Difference: 105 Watts (263%)

Memory Bandwidth

In theory, the GeForce GTX 970 is 600% quicker than the GeForce GTX 850M in general, because of its higher bandwidth. (explain)

GeForce GTX 970		224000 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 192000 (600%)

Texel Rate

The GeForce GTX 970 will be much (approximately 212%) more effective at anisotropic filtering than the GeForce GTX 850M. (explain)

GeForce GTX 970		109200 Mtexels/sec
GeForce GTX 850M		35040 Mtexels/sec
	Difference: 74160 (212%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 970 is the winner, and very much so. (explain)

GeForce GTX 970		67200 Mpixels/sec
GeForce GTX 850M		14016 Mpixels/sec
	Difference: 53184 (379%)

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 (in units of megabytes per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.