Geforce GTX 760 vs Radeon R5 M255

Intro

Compare all that to the Radeon R5 M255, which features a clock frequency of 940 MHz and a DDR3 memory speed of 1000 MHz. It also makes use of a 64-bit bus, and makes use of a 28 nm design. It is comprised of 320 SPUs, 20 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Geforce GTX 760 should perform quite a bit 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 (about 400%) more effective at AF than the Radeon R5 M255. (explain)

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

Pixel Rate

The Geforce GTX 760 is a lot (approximately 317%) more effective at AA than the Radeon R5 M255, and also will be capable of handling higher resolutions without losing too much performance. (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 (in units of MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 processed in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.