Radeon HD 6570 (OEM) 2GB vs Radeon R9 280

Intro

Compare that to the Radeon R9 280, which comes with a clock frequency of 933 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 384-bit memory bus, and makes use of a 28 nm design. It is made up of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 2GB		50 Watts
Radeon R9 280		250 Watts
	Difference: 200 Watts (400%)

Memory Bandwidth

The Radeon R9 280, in theory, should be much faster than the Radeon HD 6570 (OEM) 2GB in general. (explain)

Radeon R9 280		240000 MB/sec
Radeon HD 6570 (OEM) 2GB		64000 MB/sec
	Difference: 176000 (275%)

Texel Rate

The Radeon R9 280 should be much (about 570%) more effective at texture filtering than the Radeon HD 6570 (OEM) 2GB. (explain)

Radeon R9 280		104496 Mtexels/sec
Radeon HD 6570 (OEM) 2GB		15600 Mtexels/sec
	Difference: 88896 (570%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 280 is superior to the Radeon HD 6570 (OEM) 2GB, and very much so. (explain)

Radeon R9 280		29856 Mpixels/sec
Radeon HD 6570 (OEM) 2GB		5200 Mpixels/sec
	Difference: 24656 (474%)

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 largest amount of data (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, 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 could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.