Radeon HD 6670 (OEM) vs Radeon RX 580

Intro

Compare those specifications to the Radeon RX 580, which makes use of a 14 nm design. AMD has clocked the core frequency at 1257 MHz. The GDDR5 RAM runs at a frequency of 2000 MHz on this model. It features 2304 SPUs as well as 144 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX 580		13630 points
Radeon HD 6670 (OEM)		1120 points
	Difference: 12510 (1117%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM)		63 Watts
Radeon RX 580		185 Watts
	Difference: 122 Watts (194%)

Memory Bandwidth

As far as performance goes, the Radeon RX 580 should theoretically be quite a bit better than the Radeon HD 6670 (OEM) overall. (explain)

Radeon RX 580		262144 MB/sec
Radeon HD 6670 (OEM)		64000 MB/sec
	Difference: 198144 (310%)

Texel Rate

The Radeon RX 580 is a lot (about 843%) more effective at anisotropic filtering than the Radeon HD 6670 (OEM). (explain)

Radeon RX 580		181008 Mtexels/sec
Radeon HD 6670 (OEM)		19200 Mtexels/sec
	Difference: 161808 (843%)

Pixel Rate

The Radeon RX 580 will be quite a bit (more or less 529%) better at AA than the Radeon HD 6670 (OEM), and also capable of handling higher resolutions while still performing well. (explain)

Radeon RX 580		40224 Mpixels/sec
Radeon HD 6670 (OEM)		6400 Mpixels/sec
	Difference: 33824 (529%)

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 transferred across the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 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 anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs 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 fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.