Radeon HD 6670 (OEM) 1GB vs Radeon RX 590

Intro

Compare all of that to the Radeon RX 590, which features clock speeds of 1469 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 RAM. It features 2304 SPUs as well as 144 TAUs 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 RX 590		175 Watts
	Difference: 112 Watts (178%)

Memory Bandwidth

The Radeon RX 590, in theory, should perform quite a bit faster than the Radeon HD 6670 (OEM) 1GB overall. (explain)

Radeon RX 590		262144 MB/sec
Radeon HD 6670 (OEM) 1GB		64000 MB/sec
	Difference: 198144 (310%)

Texel Rate

The Radeon RX 590 will be much (approximately 1002%) more effective at texture filtering than the Radeon HD 6670 (OEM) 1GB. (explain)

Radeon RX 590		211536 Mtexels/sec
Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
	Difference: 192336 (1002%)

Pixel Rate

The Radeon RX 590 will be a lot (about 635%) more effective at full screen anti-aliasing than the Radeon HD 6670 (OEM) 1GB, and also capable of handling higher resolutions better. (explain)

Radeon RX 590		47008 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		6400 Mpixels/sec
	Difference: 40608 (635%)

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 max amount of data (measured in megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. 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 quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.