GeForce GTX 950M vs Radeon R9 M395X

Intro

Compare all that to the Radeon R9 M395X, which uses a 28 nm design. AMD has clocked the core frequency at 723 MHz. The GDDR5 RAM is set to run at a speed of 1250 MHz on this card. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
Radeon R9 M395X		125 Watts
	Difference: 70 Watts (127%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M395X is 400% faster than the GeForce GTX 950M overall, because of its higher data rate. (explain)

Radeon R9 M395X		160000 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 128000 (400%)

Texel Rate

The Radeon R9 M395X should be much (more or less 153%) more effective at texture filtering than the GeForce GTX 950M. (explain)

Radeon R9 M395X		92544 Mtexels/sec
GeForce GTX 950M		36560 Mtexels/sec
	Difference: 55984 (153%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 M395X is superior to the GeForce GTX 950M, by a large margin. (explain)

Radeon R9 M395X		23136 Mpixels/sec
GeForce GTX 950M		14624 Mpixels/sec
	Difference: 8512 (58%)

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: Memory bandwidth is the max amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.