GeForce GTX 260 vs GeForce GTX 860M

Intro

Compare all of that to the GeForce GTX 860M, which uses a 28 nm design. nVidia has set the core frequency at 797 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this particular model. It features 1152 SPUs along with 96 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce GTX 260		182 Watts
	Difference: 137 Watts (304%)

Memory Bandwidth

The GeForce GTX 260 should theoretically perform quite a bit faster than the GeForce GTX 860M overall. (explain)

GeForce GTX 260		111888 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 47888 (75%)

Texel Rate

The GeForce GTX 860M is much (about 108%) faster with regards to AF than the GeForce GTX 260. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce GTX 260		36864 Mtexels/sec
	Difference: 39648 (108%)

Pixel Rate

The GeForce GTX 260 will be a lot (approximately 26%) more effective at AA than the GeForce GTX 860M, and also should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 260		16128 Mpixels/sec
GeForce GTX 860M		12752 Mpixels/sec
	Difference: 3376 (26%)

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 largest amount of data (in units of MB per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 amount of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.