GeForce GTX 950 vs Radeon R5 M255

Intro

Compare those specifications to the Radeon R5 M255, which uses a 28 nm design. AMD has set the core speed at 940 MHz. The DDR3 memory is set to run at a speed of 1000 MHz on this particular card. It features 320 SPUs as well as 20 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GTX 950 should theoretically be much superior to the Radeon R5 M255 in general. (explain)

GeForce GTX 950		105728 MB/sec
Radeon R5 M255		16000 MB/sec
	Difference: 89728 (561%)

Texel Rate

The GeForce GTX 950 will be a lot (about 161%) more effective at AF than the Radeon R5 M255. (explain)

GeForce GTX 950		49152 Mtexels/sec
Radeon R5 M255		18800 Mtexels/sec
	Difference: 30352 (161%)

Pixel Rate

The GeForce GTX 950 is much (more or less 336%) faster with regards to full screen anti-aliasing than the Radeon R5 M255, and should be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 950		32768 Mpixels/sec
Radeon R5 M255		7520 Mpixels/sec
	Difference: 25248 (336%)

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 over the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour 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 many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.