Radeon HD 5670 vs Radeon R9 280

Intro

Compare those specs to the Radeon R9 280, which makes use of a 28 nm design. AMD has clocked the core speed at 933 MHz. The GDDR5 RAM runs at a speed of 1250 MHz on this card. It features 1792 SPUs along with 112 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

The Radeon R9 280 should theoretically perform a lot faster than the Radeon HD 5670 in general. (explain)

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

Texel Rate

The Radeon R9 280 is quite a bit (about 574%) better at texture filtering than the Radeon HD 5670. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 280 is the winner, by a large margin. (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: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 are processed per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video 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 that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.