Radeon R5 M230 vs Radeon R7 250X 2GB

Intro

Compare all of that to the Radeon R7 250X 2GB, which uses a 28 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 RAM works at a speed of 1125 MHz on this particular model. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon R7 250X 2GB should theoretically be quite a bit better than the Radeon R5 M230 in general. (explain)

Radeon R7 250X 2GB		72000 MB/sec
Radeon R5 M230		16000 MB/sec
	Difference: 56000 (350%)

Texel Rate

The Radeon R7 250X 2GB will be much (about 156%) better at anisotropic filtering than the Radeon R5 M230. (explain)

Radeon R7 250X 2GB		40000 Mtexels/sec
Radeon R5 M230		15600 Mtexels/sec
	Difference: 24400 (156%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R7 250X 2GB is superior to the Radeon R5 M230, and very much so. (explain)

Radeon R7 250X 2GB		16000 Mpixels/sec
Radeon R5 M230		3120 Mpixels/sec
	Difference: 12880 (413%)

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 (measured in MB per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses 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 texture map elements (texels) that are processed per second. This figure is calculated 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few 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.