Radeon R9 295X2 vs Radeon RX 590

Intro

Compare those specs to the Radeon RX 590, which comes with GPU clock speed of 1469 MHz, and 8192 MB of GDDR5 memory running at 2000 MHz through a 256-bit bus. It also features 2304 Stream Processors, 144 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 590		175 Watts
Radeon R9 295X2		500 Watts
	Difference: 325 Watts (186%)

Memory Bandwidth

In theory, the Radeon R9 295X2 will be 144% faster than the Radeon RX 590 in general, due to its greater bandwidth. (explain)

Radeon R9 295X2		640000 MB/sec
Radeon RX 590		262144 MB/sec
	Difference: 377856 (144%)

Texel Rate

The Radeon R9 295X2 is quite a bit (more or less 69%) faster with regards to anisotropic filtering than the Radeon RX 590. (explain)

Radeon R9 295X2		358336 Mtexels/sec
Radeon RX 590		211536 Mtexels/sec
	Difference: 146800 (69%)

Pixel Rate

The Radeon R9 295X2 will be much (about 177%) better at AA than the Radeon RX 590, and also capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 295X2		130304 Mpixels/sec
Radeon RX 590		47008 Mpixels/sec
	Difference: 83296 (177%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 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 high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 get to the max fill rate.