Geforce GTX 760 vs Radeon R5 M255

Intro

Compare those specs to the Radeon R5 M255, which has a clock speed of 940 MHz and a DDR3 memory frequency of 1000 MHz. It also makes use of a 64-bit bus, and makes use of a 28 nm design. It features 320 SPUs, 20 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Geforce GTX 760, in theory, should perform a lot faster than the Radeon R5 M255 in general. (explain)

Geforce GTX 760		192256 MB/sec
Radeon R5 M255		16000 MB/sec
	Difference: 176256 (1102%)

Texel Rate

The Geforce GTX 760 is quite a bit (more or less 400%) faster with regards to texture filtering than the Radeon R5 M255. (explain)

Geforce GTX 760		94080 Mtexels/sec
Radeon R5 M255		18800 Mtexels/sec
	Difference: 75280 (400%)

Pixel Rate

If using a high resolution is important to you, then the Geforce GTX 760 is superior to the Radeon R5 M255, by far. (explain)

Geforce GTX 760		31360 Mpixels/sec
Radeon R5 M255		7520 Mpixels/sec
	Difference: 23840 (317%)

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 megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. 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 amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video 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. The figure is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka 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, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.