Radeon HD 6670 (OEM) 1GB vs Radeon RX 570

Intro

Compare all of that to the Radeon RX 570, which comes with a clock frequency of 1168 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 256-bit memory bus, and makes use of a 14 nm design. It is made up of 2048 SPUs, 128 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 570		150 Watts
	Difference: 87 Watts (138%)

Memory Bandwidth

As far as performance goes, the Radeon RX 570 should in theory be quite a bit superior to the Radeon HD 6670 (OEM) 1GB in general. (explain)

Radeon RX 570		229376 MB/sec
Radeon HD 6670 (OEM) 1GB		64000 MB/sec
	Difference: 165376 (258%)

Texel Rate

The Radeon RX 570 will be quite a bit (approximately 679%) more effective at texture filtering than the Radeon HD 6670 (OEM) 1GB. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
	Difference: 130304 (679%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 570 is the winner, by far. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		6400 Mpixels/sec
	Difference: 30976 (484%)

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 MB per second) that can be moved across the external memory interface in one second. It is calculated 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 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.