Radeon HD 6570 (OEM) 2GB vs Radeon R9 390X 8G

Intro

Compare all that to the Radeon R9 390X 8G, which uses a 28 nm design. AMD has set the core speed at 1050 MHz. The GDDR5 RAM is set to run at a speed of 1500 MHz on this particular card. It features 2816 SPUs as well as 176 TAUs and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 2GB		50 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 225 Watts (450%)

Memory Bandwidth

In theory, the Radeon R9 390X 8G will be 500% faster than the Radeon HD 6570 (OEM) 2GB overall, due to its greater data rate. (explain)

Radeon R9 390X 8G		384000 MB/sec
Radeon HD 6570 (OEM) 2GB		64000 MB/sec
	Difference: 320000 (500%)

Texel Rate

The Radeon R9 390X 8G should be quite a bit (approximately 1085%) better at AF than the Radeon HD 6570 (OEM) 2GB. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Radeon HD 6570 (OEM) 2GB		15600 Mtexels/sec
	Difference: 169200 (1085%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 390X 8G is superior to the Radeon HD 6570 (OEM) 2GB, and very much so. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Radeon HD 6570 (OEM) 2GB		5200 Mpixels/sec
	Difference: 62000 (1192%)

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 largest amount of data (counted in megabytes per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.