GeForce GTX 460 vs GeForce GTX 850M

Intro

Compare all that to the GeForce GTX 850M, which features core speeds of 876 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

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 850M		3340 points
GeForce GTX 460		2557 points
	Difference: 783 (31%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
GeForce GTX 460		150 Watts
	Difference: 110 Watts (275%)

Memory Bandwidth

The GeForce GTX 460, in theory, should perform a lot faster than the GeForce GTX 850M overall. (explain)

GeForce GTX 460		86400 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 54400 (170%)

Texel Rate

The GeForce GTX 460 should be a bit (approximately 8%) more effective at AF than the GeForce GTX 850M. (explain)

GeForce GTX 460		37800 Mtexels/sec
GeForce GTX 850M		35040 Mtexels/sec
	Difference: 2760 (8%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 460 is the winner, not by a very large margin though. (explain)

GeForce GTX 460		16200 Mpixels/sec
GeForce GTX 850M		14016 Mpixels/sec
	Difference: 2184 (16%)

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 data (counted in MB per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once 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 per second. This number is calculated by multiplying the total amount of 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 applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.