Radeon HD 6670 (OEM) vs Radeon RX 460 2GB

Intro

Compare those specifications to the Radeon RX 460 2GB, which has a core clock speed of 1090 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 128-bit memory bus, and makes use of a 14 nm design. It features 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM)		63 Watts
Radeon RX 460 2GB		75 Watts
	Difference: 12 Watts (19%)

Memory Bandwidth

In theory, the Radeon RX 460 2GB should be 75% quicker than the Radeon HD 6670 (OEM) in general, because of its higher bandwidth. (explain)

Radeon RX 460 2GB		112000 MB/sec
Radeon HD 6670 (OEM)		64000 MB/sec
	Difference: 48000 (75%)

Texel Rate

The Radeon RX 460 2GB will be a lot (more or less 218%) more effective at anisotropic filtering than the Radeon HD 6670 (OEM). (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
Radeon HD 6670 (OEM)		19200 Mtexels/sec
	Difference: 41840 (218%)

Pixel Rate

The Radeon RX 460 2GB will be a lot (about 173%) better at AA than the Radeon HD 6670 (OEM), and should be able to handle higher resolutions while still performing well. (explain)

Radeon RX 460 2GB		17440 Mpixels/sec
Radeon HD 6670 (OEM)		6400 Mpixels/sec
	Difference: 11040 (173%)

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 (counted in MB per second) that can be transported past 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 RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.