Radeon HD 6670 (OEM) 1GB vs Radeon R9 280

Intro

Compare those specifications to the Radeon R9 280, which comes with a GPU core clock speed of 933 MHz, and 3072 MB of GDDR5 memory running at 1250 MHz through a 384-bit bus. It also features 1792 Stream Processors, 112 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 1GB		63 Watts
Radeon R9 280		250 Watts
	Difference: 187 Watts (297%)

Memory Bandwidth

In theory, the Radeon R9 280 should perform much faster than the Radeon HD 6670 (OEM) 1GB in general. (explain)

Radeon R9 280		240000 MB/sec
Radeon HD 6670 (OEM) 1GB		64000 MB/sec
	Difference: 176000 (275%)

Texel Rate

The Radeon R9 280 is a lot (about 444%) better at texture filtering than the Radeon HD 6670 (OEM) 1GB. (explain)

Radeon R9 280		104496 Mtexels/sec
Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
	Difference: 85296 (444%)

Pixel Rate

The Radeon R9 280 is much (about 367%) faster with regards to anti-aliasing than the Radeon HD 6670 (OEM) 1GB, and also will be capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 280		29856 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		6400 Mpixels/sec
	Difference: 23456 (367%)

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 information (counted in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units 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 is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.