Radeon HD 5850 vs Radeon R9 M395X

Intro

Compare those specs to the Radeon R9 M395X, which has core speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X		125 Watts
Radeon HD 5850		151 Watts
	Difference: 26 Watts (21%)

Memory Bandwidth

In theory, the Radeon R9 M395X is 25% quicker than the Radeon HD 5850 in general, due to its higher bandwidth. (explain)

Radeon R9 M395X		160000 MB/sec
Radeon HD 5850		128000 MB/sec
	Difference: 32000 (25%)

Texel Rate

The Radeon R9 M395X is much (approximately 77%) more effective at AF than the Radeon HD 5850. (explain)

Radeon R9 M395X		92544 Mtexels/sec
Radeon HD 5850		52200 Mtexels/sec
	Difference: 40344 (77%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 5850 is superior to the Radeon R9 M395X, but it probably won't make a huge difference. (explain)

Radeon HD 5850		23200 Mpixels/sec
Radeon R9 M395X		23136 Mpixels/sec
	Difference: 64 (0%)

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 data (counted in MB per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.