GeForce GTX 950M vs Radeon R9 M280X

Intro

Compare all that to the Radeon R9 M280X, which has GPU clock speed of 900 MHz, and 4096 MB of GDDR5 memory set to run at 1375 MHz through a 128-bit bus. It also is comprised of 896 Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
Radeon R9 M280X		75 Watts
	Difference: 20 Watts (36%)

Memory Bandwidth

Performance-wise, the Radeon R9 M280X should in theory be quite a bit superior to the GeForce GTX 950M overall. (explain)

Radeon R9 M280X		88000 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 56000 (175%)

Texel Rate

The Radeon R9 M280X is quite a bit (more or less 38%) more effective at texture filtering than the GeForce GTX 950M. (explain)

Radeon R9 M280X		50400 Mtexels/sec
GeForce GTX 950M		36560 Mtexels/sec
	Difference: 13840 (38%)

Pixel Rate

The GeForce GTX 950M is a little bit (approximately 2%) more effective at AA than the Radeon R9 M280X, and also will be able to handle higher resolutions better. (explain)

GeForce GTX 950M		14624 Mpixels/sec
Radeon R9 M280X		14400 Mpixels/sec
	Difference: 224 (2%)

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 information (measured in megabytes per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.