Radeon HD 6670 (OEM) 1GB vs Radeon RX 480 4GB

Intro

Compare those specs to the Radeon RX 480 4GB, which uses a 14 nm design. AMD has clocked the core speed at 1120 MHz. The GDDR5 RAM is set to run at a speed of 1750 MHz on this specific card. It features 2304 SPUs along with 144 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 1GB		63 Watts
Radeon RX 480 4GB		150 Watts
	Difference: 87 Watts (138%)

Memory Bandwidth

Theoretically, the Radeon RX 480 4GB should perform quite a bit faster than the Radeon HD 6670 (OEM) 1GB overall. (explain)

Radeon RX 480 4GB		229376 MB/sec
Radeon HD 6670 (OEM) 1GB		64000 MB/sec
	Difference: 165376 (258%)

Texel Rate

The Radeon RX 480 4GB is a lot (approximately 740%) more effective at anisotropic filtering than the Radeon HD 6670 (OEM) 1GB. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
	Difference: 142080 (740%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 480 4GB is a better choice, by far. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		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: Bandwidth is the largest amount of data (measured in MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 are processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines 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 output rate is also dependant 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.