Radeon HD 5570 vs Radeon R9 295X2

Intro

Compare all of that to the Radeon R9 295X2, which has a core clock speed of 1018 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 512-bit bus, and uses a 28 nm design. It features 2816 SPUs, 176 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
Radeon R9 295X2		500 Watts
	Difference: 457 Watts (1063%)

Memory Bandwidth

As far as performance goes, the Radeon R9 295X2 should in theory be a lot better than the Radeon HD 5570 in general. (explain)

Radeon R9 295X2		640000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 611200 (2122%)

Texel Rate

The Radeon R9 295X2 will be quite a bit (about 2656%) more effective at AF than the Radeon HD 5570. (explain)

Radeon R9 295X2		358336 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 345336 (2656%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 295X2 is the winner, by far. (explain)

Radeon R9 295X2		130304 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 125104 (2406%)

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 megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics 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 amount of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.