Radeon HD 6570 (OEM) 2GB vs Radeon R9 380X

Intro

Compare all that to the Radeon R9 380X, which comes with core speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 2GB		50 Watts
Radeon R9 380X		190 Watts
	Difference: 140 Watts (280%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 380X should perform quite a bit faster than the Radeon HD 6570 (OEM) 2GB in general. (explain)

Radeon R9 380X		182400 MB/sec
Radeon HD 6570 (OEM) 2GB		64000 MB/sec
	Difference: 118400 (185%)

Texel Rate

The Radeon R9 380X is a lot (about 696%) more effective at AF than the Radeon HD 6570 (OEM) 2GB. (explain)

Radeon R9 380X		124160 Mtexels/sec
Radeon HD 6570 (OEM) 2GB		15600 Mtexels/sec
	Difference: 108560 (696%)

Pixel Rate

The Radeon R9 380X should be much (approximately 497%) faster with regards to AA than the Radeon HD 6570 (OEM) 2GB, and should be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon R9 380X		31040 Mpixels/sec
Radeon HD 6570 (OEM) 2GB		5200 Mpixels/sec
	Difference: 25840 (497%)

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 transported past the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 bandwidth is, the lower the ability to reach the max fill rate.