GeForce GTX 950M vs Radeon R9 M275X

Intro

Compare those specs to the Radeon R9 M275X, which has GPU core speed of 900 MHz, and 2048 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X		50 Watts
GeForce GTX 950M		55 Watts
	Difference: 5 Watts (10%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M275X should be a lot faster than the GeForce GTX 950M overall. (explain)

Radeon R9 M275X		72000 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 40000 (125%)

Texel Rate

The GeForce GTX 950M will be a bit (about 2%) more effective at anisotropic filtering than the Radeon R9 M275X. (explain)

GeForce GTX 950M		36560 Mtexels/sec
Radeon R9 M275X		36000 Mtexels/sec
	Difference: 560 (2%)

Pixel Rate

The GeForce GTX 950M is a little bit (more or less 2%) more effective at FSAA than the Radeon R9 M275X, and also should be able to handle higher screen resolutions better. (explain)

GeForce GTX 950M		14624 Mpixels/sec
Radeon R9 M275X		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 data (counted in MB per second) that can be moved across the external memory interface within a second. It's worked out 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 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 high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.