Radeon HD 6670 (OEM) 1GB vs Radeon RX 5700 XT

Intro

Compare that to the Radeon RX 5700 XT, which comes with GPU core speed of 1605 MHz, and 8096 MB of GDDR6 memory running at 1750 MHz through a 256-bit bus. It also features 2560 Stream Processors, 160 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 1GB		63 Watts
Radeon RX 5700 XT		225 Watts
	Difference: 162 Watts (257%)

Memory Bandwidth

The Radeon RX 5700 XT should in theory be quite a bit faster than the Radeon HD 6670 (OEM) 1GB overall. (explain)

Radeon RX 5700 XT		458752 MB/sec
Radeon HD 6670 (OEM) 1GB		64000 MB/sec
	Difference: 394752 (617%)

Texel Rate

The Radeon RX 5700 XT should be quite a bit (more or less 1238%) more effective at AF than the Radeon HD 6670 (OEM) 1GB. (explain)

Radeon RX 5700 XT		256800 Mtexels/sec
Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
	Difference: 237600 (1238%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 5700 XT is a better choice, by far. (explain)

Radeon RX 5700 XT		102720 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		6400 Mpixels/sec
	Difference: 96320 (1505%)

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 information (in units of MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs 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 lots of 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.