Radeon HD 6670 (OEM) 1GB vs Radeon R9 380 2G

Intro

Compare those specifications to the Radeon R9 380 2G, which features a GPU core clock speed of 970 MHz, and 2048 MB of GDDR5 RAM running at 1425 MHz through a 256-bit bus. It also features 1792 SPUs, 112 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 1GB		63 Watts
Radeon R9 380 2G		190 Watts
	Difference: 127 Watts (202%)

Memory Bandwidth

The Radeon R9 380 2G should theoretically be a lot faster than the Radeon HD 6670 (OEM) 1GB in general. (explain)

Radeon R9 380 2G		182400 MB/sec
Radeon HD 6670 (OEM) 1GB		64000 MB/sec
	Difference: 118400 (185%)

Texel Rate

The Radeon R9 380 2G should be a lot (approximately 466%) more effective at AF than the Radeon HD 6670 (OEM) 1GB. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
	Difference: 89440 (466%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 380 2G is a better choice, by far. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		6400 Mpixels/sec
	Difference: 24640 (385%)

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 max amount of data (counted in MB per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.