Radeon R5 M230 vs Radeon R9 M280X

Intro

Compare all of that to the Radeon R9 M280X, which features GPU clock speed of 900 MHz, and 4096 MB of GDDR5 RAM set to run at 1375 MHz through a 128-bit bus. It also is comprised of 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M280X is 450% quicker than the Radeon R5 M230 in general, due to its higher bandwidth. (explain)

Radeon R9 M280X		88000 MB/sec
Radeon R5 M230		16000 MB/sec
	Difference: 72000 (450%)

Texel Rate

The Radeon R9 M280X is much (approximately 223%) more effective at anisotropic filtering than the Radeon R5 M230. (explain)

Radeon R9 M280X		50400 Mtexels/sec
Radeon R5 M230		15600 Mtexels/sec
	Difference: 34800 (223%)

Pixel Rate

The Radeon R9 M280X will be much (approximately 362%) more effective at AA than the Radeon R5 M230, and will be able to handle higher resolutions without losing too much performance. (explain)

Radeon R9 M280X		14400 Mpixels/sec
Radeon R5 M230		3120 Mpixels/sec
	Difference: 11280 (362%)

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 data (in units of megabytes per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 can be applied per second. This number is worked out by multiplying the total number of texture units of the card by the core clock 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.