Radeon R9 Fury X vs Radeon R9 M275X

Intro

Compare all that to the Radeon R9 M275X, which features a core clock speed of 900 MHz and a GDDR5 memory frequency of 1125 MHz. It also features a 128-bit bus, and uses a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X		50 Watts
Radeon R9 Fury X		275 Watts
	Difference: 225 Watts (450%)

Memory Bandwidth

In theory, the Radeon R9 Fury X is 611% faster than the Radeon R9 M275X in general, because of its higher data rate. (explain)

Radeon R9 Fury X		512000 MB/sec
Radeon R9 M275X		72000 MB/sec
	Difference: 440000 (611%)

Texel Rate

The Radeon R9 Fury X is quite a bit (more or less 647%) more effective at AF than the Radeon R9 M275X. (explain)

Radeon R9 Fury X		268800 Mtexels/sec
Radeon R9 M275X		36000 Mtexels/sec
	Difference: 232800 (647%)

Pixel Rate

The Radeon R9 Fury X should be a lot (more or less 367%) better at full screen anti-aliasing than the Radeon R9 M275X, and also will be able to handle higher screen resolutions better. (explain)

Radeon R9 Fury X		67200 Mpixels/sec
Radeon R9 M275X		14400 Mpixels/sec
	Difference: 52800 (367%)

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 largest amount of data (in units of megabytes per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core 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 lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.