GeForce GTX 950 vs Radeon R9 M385X

Intro

Compare those specifications to the Radeon R9 M385X, which comes with a clock speed of 1100 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 128-bit memory bus, and uses a 28 nm design. It features 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 950 should be 10% faster than the Radeon R9 M385X in general, because of its greater data rate. (explain)

GeForce GTX 950		105728 MB/sec
Radeon R9 M385X		96000 MB/sec
	Difference: 9728 (10%)

Texel Rate

The Radeon R9 M385X should be quite a bit (about 25%) more effective at texture filtering than the GeForce GTX 950. (explain)

Radeon R9 M385X		61600 Mtexels/sec
GeForce GTX 950		49152 Mtexels/sec
	Difference: 12448 (25%)

Pixel Rate

The GeForce GTX 950 will be a lot (more or less 86%) better at AA than the Radeon R9 M385X, and able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 950		32768 Mpixels/sec
Radeon R9 M385X		17600 Mpixels/sec
	Difference: 15168 (86%)

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 (counted in megabytes per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once 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 number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

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