Radeon HD 5830 vs Radeon R9 M390X

Intro

Compare all of that to the Radeon R9 M390X, which has clock speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M390X		125 Watts
Radeon HD 5830		175 Watts
	Difference: 50 Watts (40%)

Memory Bandwidth

The Radeon R9 M390X should theoretically perform quite a bit faster than the Radeon HD 5830 overall. (explain)

Radeon R9 M390X		160000 MB/sec
Radeon HD 5830		128000 MB/sec
	Difference: 32000 (25%)

Texel Rate

The Radeon R9 M390X is quite a bit (more or less 107%) better at anisotropic filtering than the Radeon HD 5830. (explain)

Radeon R9 M390X		92544 Mtexels/sec
Radeon HD 5830		44800 Mtexels/sec
	Difference: 47744 (107%)

Pixel Rate

The Radeon R9 M390X will be much (about 81%) more effective at full screen anti-aliasing than the Radeon HD 5830, and also capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 M390X		23136 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 10336 (81%)

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 maximum amount of information (counted in MB per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one 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 amount of Raster Operations Pipelines by the clock 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 output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.