Radeon R9 280 vs Radeon R9 M380

Intro

Compare those specifications to the Radeon R9 M380, which features core speeds of 1000 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 RAM. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 280 is 150% faster than the Radeon R9 M380 in general, because of its higher data rate. (explain)

Radeon R9 280		240000 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 144000 (150%)

Texel Rate

The Radeon R9 280 should be a lot (more or less 161%) better at texture filtering than the Radeon R9 M380. (explain)

Radeon R9 280		104496 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 64496 (161%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 280 is the winner, and very much so. (explain)

Radeon R9 280		29856 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 13856 (87%)

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 largest amount of information (counted in MB per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card 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 amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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 memory bandwidth is, the lower the potential to reach the max fill rate.