GeForce GTX 960 vs Radeon R5 M255

Intro

Compare that to the Radeon R5 M255, which makes use of a 28 nm design. AMD has set the core frequency at 940 MHz. The DDR3 RAM works at a frequency of 1000 MHz on this model. It features 320 SPUs along with 20 TAUs and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 960 should theoretically perform quite a bit faster than the Radeon R5 M255 overall. (explain)

GeForce GTX 960		112000 MB/sec
Radeon R5 M255		16000 MB/sec
	Difference: 96000 (600%)

Texel Rate

The GeForce GTX 960 will be a lot (more or less 284%) more effective at texture filtering than the Radeon R5 M255. (explain)

GeForce GTX 960		72128 Mtexels/sec
Radeon R5 M255		18800 Mtexels/sec
	Difference: 53328 (284%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 960 is the winner, by far. (explain)

GeForce GTX 960		36064 Mpixels/sec
Radeon R5 M255		7520 Mpixels/sec
	Difference: 28544 (380%)

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 max amount of information (in units of MB per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better 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 applied per second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory per 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 drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.