Radeon HD 5570 vs Radeon R9 270X

Intro

Compare that to the Radeon R9 270X, which makes use of a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory works at a frequency of 1400 MHz on this model. It features 1280 SPUs as well as 80 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
Radeon R9 270X		180 Watts
	Difference: 137 Watts (319%)

Memory Bandwidth

The Radeon R9 270X should in theory be quite a bit faster than the Radeon HD 5570 overall. (explain)

Radeon R9 270X		179200 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 150400 (522%)

Texel Rate

The Radeon R9 270X will be a lot (more or less 515%) faster with regards to anisotropic filtering than the Radeon HD 5570. (explain)

Radeon R9 270X		80000 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 67000 (515%)

Pixel Rate

The Radeon R9 270X will be a lot (approximately 515%) better at anti-aliasing than the Radeon HD 5570, and also able to handle higher resolutions without slowing down too much. (explain)

Radeon R9 270X		32000 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 26800 (515%)

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: Memory bandwidth is the max amount of information (in units of MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.