GeForce GTX 650 vs GeForce GTX 860M

Intro

Compare all that to the GeForce GTX 860M, which has core speeds of 797 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 RAM. It features 1152 SPUs along with 96 TAUs and 16 Rasterization Operator 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 860M		4340 points
GeForce GTX 650		2263 points
	Difference: 2077 (92%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce GTX 650		64 Watts
	Difference: 19 Watts (42%)

Memory Bandwidth

Performance-wise, the GeForce GTX 650 should in theory be quite a bit better than the GeForce GTX 860M in general. (explain)

GeForce GTX 650		80000 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 16000 (25%)

Texel Rate

The GeForce GTX 860M should be quite a bit (more or less 126%) better at AF than the GeForce GTX 650. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 42656 (126%)

Pixel Rate

The GeForce GTX 650 should be a lot (about 33%) more effective at anti-aliasing than the GeForce GTX 860M, and also capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 650		16928 Mpixels/sec
GeForce GTX 860M		12752 Mpixels/sec
	Difference: 4176 (33%)

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 maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, 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 number of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.