Radeon R5 M230 vs Radeon R9 M370X

Intro

Compare those specifications to the Radeon R9 M370X, which comes with a GPU core clock speed of 800 MHz, and 2048 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M370X should be 350% faster than the Radeon R5 M230 overall, due to its greater data rate. (explain)

Radeon R9 M370X		72000 MB/sec
Radeon R5 M230		16000 MB/sec
	Difference: 56000 (350%)

Texel Rate

The Radeon R9 M370X will be a lot (more or less 105%) faster with regards to anisotropic filtering than the Radeon R5 M230. (explain)

Radeon R9 M370X		32000 Mtexels/sec
Radeon R5 M230		15600 Mtexels/sec
	Difference: 16400 (105%)

Pixel Rate

The Radeon R9 M370X is much (more or less 310%) better at full screen anti-aliasing than the Radeon R5 M230, and also should be capable of handling higher resolutions without losing too much performance. (explain)

Radeon R9 M370X		12800 Mpixels/sec
Radeon R5 M230		3120 Mpixels/sec
	Difference: 9680 (310%)

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 maximum amount of information (in units of MB per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, 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 that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. 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 - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.