Radeon R7 M260 vs Radeon R9 M380

Intro

Compare all of that to the Radeon R9 M380, which has a clock speed of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 128-bit bus, and uses 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

Performance-wise, the Radeon R9 M380 should in theory be much better than the Radeon R7 M260 in general. (explain)

Radeon R9 M380		96000 MB/sec
Radeon R7 M260		16000 MB/sec
	Difference: 80000 (500%)

Texel Rate

The Radeon R9 M380 will be quite a bit (approximately 133%) more effective at anisotropic filtering than the Radeon R7 M260. (explain)

Radeon R9 M380		40000 Mtexels/sec
Radeon R7 M260		17160 Mtexels/sec
	Difference: 22840 (133%)

Pixel Rate

The Radeon R9 M380 should be a lot (more or less 180%) more effective at anti-aliasing than the Radeon R7 M260, and also should be able to handle higher resolutions while still performing well. (explain)

Radeon R9 M380		16000 Mpixels/sec
Radeon R7 M260		5720 Mpixels/sec
	Difference: 10280 (180%)

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 data (counted in MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.