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

Intro

Compare all of that to the Radeon R9 380 2G, which uses a 28 nm design. AMD has clocked the core speed at 970 MHz. The GDDR5 RAM works at a speed of 1425 MHz on this model. It features 1792 SPUs as well as 112 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 380 2G		190 Watts
	Difference: 140 Watts (280%)

Memory Bandwidth

As far as performance goes, the Radeon R9 380 2G should theoretically be much better than the Radeon HD 6570 (OEM) 2GB in general. (explain)

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

Texel Rate

The Radeon R9 380 2G is quite a bit (about 596%) faster with regards to AF than the Radeon HD 6570 (OEM) 2GB. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
Radeon HD 6570 (OEM) 2GB		15600 Mtexels/sec
	Difference: 93040 (596%)

Pixel Rate

The Radeon R9 380 2G will be quite a bit (about 497%) more effective at FSAA than the Radeon HD 6570 (OEM) 2GB, and should be able to handle higher screen resolutions better. (explain)

Radeon R9 380 2G		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: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.