GeForce GTX 950 vs Radeon R9 M380

Intro

Compare those specifications to the Radeon R9 M380, which uses a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 RAM is set to run at a speed of 1500 MHz on this specific model. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 950 should theoretically perform a little bit faster than the Radeon R9 M380 overall. (explain)

GeForce GTX 950		105728 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 9728 (10%)

Texel Rate

The GeForce GTX 950 should be quite a bit (approximately 23%) more effective at texture filtering than the Radeon R9 M380. (explain)

GeForce GTX 950		49152 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 9152 (23%)

Pixel Rate

The GeForce GTX 950 is quite a bit (more or less 105%) faster with regards to FSAA than the Radeon R9 M380, and capable of handling higher resolutions better. (explain)

GeForce GTX 950		32768 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 16768 (105%)

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 maximum amount of information (measured in MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the 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 maximum number of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.