Radeon R9 380 2G vs Radeon R9 M265X

Intro

Compare all that to the Radeon R9 M265X, which comes with clock speeds of 575 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 380 2G, in theory, should perform a lot faster than the Radeon R9 M265X in general. (explain)

Radeon R9 380 2G		182400 MB/sec
Radeon R9 M265X		72000 MB/sec
	Difference: 110400 (153%)

Texel Rate

The Radeon R9 380 2G will be quite a bit (about 372%) better at texture filtering than the Radeon R9 M265X. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
Radeon R9 M265X		23000 Mtexels/sec
	Difference: 85640 (372%)

Pixel Rate

The Radeon R9 380 2G should be much (more or less 237%) more effective at FSAA than the Radeon R9 M265X, and will be able to handle higher resolutions better. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 21840 (237%)

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 largest amount of information (in units of MB per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core clock speed. 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 lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.