Radeon HD 5670 vs Radeon R9 280X

Intro

Compare those specifications to the Radeon R9 280X, which has GPU clock speed of 850 MHz, and 3072 MB of GDDR5 RAM running at 1500 MHz through a 384-bit bus. It also is made up of 2048 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically speaking, the Radeon R9 280X should perform quite a bit faster than the Radeon HD 5670 in general. (explain)

Radeon R9 280X		288000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 224000 (350%)

Texel Rate

The Radeon R9 280X should be quite a bit (more or less 602%) faster with regards to texture filtering than the Radeon HD 5670. (explain)

Radeon R9 280X		108800 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 93300 (602%)

Pixel Rate

The Radeon R9 280X should be quite a bit (more or less 339%) more effective at AA than the Radeon HD 5670, and also will be capable of handling higher resolutions better. (explain)

Radeon R9 280X		27200 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 21000 (339%)

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 MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.