Radeon R7 M260X vs Radeon R9 380 2G

Intro

Compare those specs to the Radeon R9 380 2G, which has a clock speed of 970 MHz and a GDDR5 memory speed of 1425 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 380 2G should in theory be quite a bit superior to the Radeon R7 M260X in general. (explain)

Radeon R9 380 2G		182400 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 118400 (185%)

Texel Rate

The Radeon R9 380 2G will be quite a bit (more or less 449%) faster with regards to texture filtering than the Radeon R7 M260X. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 88840 (449%)

Pixel Rate

The Radeon R9 380 2G will be quite a bit (about 370%) more effective at FSAA than the Radeon R7 M260X, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 24440 (370%)

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 max amount of information (measured in megabytes per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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