Radeon R7 370 4G vs Radeon R9 M380

Intro

Compare all that to the Radeon R9 M380, which features clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 RAM. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon R7 370 4G should in theory be much superior to the Radeon R9 M380 in general. (explain)

Radeon R7 370 4G		179200 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 83200 (87%)

Texel Rate

The Radeon R7 370 4G is much (more or less 56%) better at texture filtering than the Radeon R9 M380. (explain)

Radeon R7 370 4G		62400 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 22400 (56%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R7 370 4G is the winner, by far. (explain)

Radeon R7 370 4G		31200 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 15200 (95%)

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 transferred across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 number of 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 in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.