GeForce GTX 960 vs Radeon R9 M380

Intro

Compare all that to the Radeon R9 M380, which has a clock frequency of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTX 960 will be 17% faster than the Radeon R9 M380 in general, because of its greater bandwidth. (explain)

GeForce GTX 960		112000 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 16000 (17%)

Texel Rate

The GeForce GTX 960 should be quite a bit (more or less 80%) more effective at AF than the Radeon R9 M380. (explain)

GeForce GTX 960		72128 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 32128 (80%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 960 is the winner, by far. (explain)

GeForce GTX 960		36064 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 20064 (125%)

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 megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If 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 high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.