Radeon R5 M230 vs Radeon R9 M295X

Intro

Compare those specifications to the Radeon R9 M295X, which comes with GPU core speed of 750 MHz, and 4096 MB of GDDR5 RAM running at 1375 MHz through a 256-bit bus. It also features 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M295X, in theory, should be quite a bit faster than the Radeon R5 M230 overall. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon R5 M230		16000 MB/sec
	Difference: 160000 (1000%)

Texel Rate

The Radeon R9 M295X should be a lot (more or less 515%) more effective at texture filtering than the Radeon R5 M230. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon R5 M230		15600 Mtexels/sec
	Difference: 80400 (515%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 M295X is the winner, and very much so. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon R5 M230		3120 Mpixels/sec
	Difference: 20880 (669%)

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 max amount of data (counted in MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units 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 also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.