Radeon HD 6670 (OEM) vs Radeon RX 480

Intro

Compare that to the Radeon RX 480, which makes use of a 14 nm design. AMD has set the core speed at 1120 MHz. The GDDR5 RAM runs at a frequency of 2000 MHz on this specific model. It features 2304 SPUs as well as 144 Texture Address Units and 32 ROPs.

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 480		13349 points
Radeon HD 6670 (OEM)		1120 points
	Difference: 12229 (1092%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM)		63 Watts
Radeon RX 480		150 Watts
	Difference: 87 Watts (138%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 480 is 310% quicker than the Radeon HD 6670 (OEM) in general, because of its greater bandwidth. (explain)

Radeon RX 480		262144 MB/sec
Radeon HD 6670 (OEM)		64000 MB/sec
	Difference: 198144 (310%)

Texel Rate

The Radeon RX 480 should be quite a bit (more or less 740%) more effective at anisotropic filtering than the Radeon HD 6670 (OEM). (explain)

Radeon RX 480		161280 Mtexels/sec
Radeon HD 6670 (OEM)		19200 Mtexels/sec
	Difference: 142080 (740%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 480 is a better choice, and very much so. (explain)

Radeon RX 480		35840 Mpixels/sec
Radeon HD 6670 (OEM)		6400 Mpixels/sec
	Difference: 29440 (460%)

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: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 number of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.