Radeon HD 6790 vs Radeon R9 M365X

Intro

Compare all that to the Radeon R9 M365X, which has clock speeds of 925 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 RAM. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 6790 should theoretically perform a lot faster than the Radeon R9 M365X overall. (explain)

Radeon HD 6790		134400 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 62400 (87%)

Texel Rate

The Radeon R9 M365X should be just a bit (approximately 10%) faster with regards to anisotropic filtering than the Radeon HD 6790. (explain)

Radeon R9 M365X		37000 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 3400 (10%)

Pixel Rate

The Radeon R9 M365X will be just a bit (about 10%) more effective at anti-aliasing than the Radeon HD 6790, and also should be capable of handling higher resolutions better. (explain)

Radeon R9 M365X		14800 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 1360 (10%)

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 (counted in MB per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 are applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number 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 amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.