Radeon HD 5670 vs Radeon R9 280

Intro

Compare those specifications to the Radeon R9 280, which has a clock speed of 933 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 384-bit memory bus, and makes use of a 28 nm design. It features 1792 SPUs, 112 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
Radeon R9 280		250 Watts
	Difference: 189 Watts (310%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 280 should be 275% faster than the Radeon HD 5670 in general, due to its higher data rate. (explain)

Radeon R9 280		240000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 176000 (275%)

Texel Rate

The Radeon R9 280 should be a lot (more or less 574%) faster with regards to AF than the Radeon HD 5670. (explain)

Radeon R9 280		104496 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 88996 (574%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 280 is the winner, by far. (explain)

Radeon R9 280		29856 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 23656 (382%)

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 maximum amount of data (in units of megabytes per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.