Radeon HD 6670 (OEM) vs Radeon R7 370 4G

Intro

Compare those specifications to the Radeon R7 370 4G, which has a core clock speed of 975 MHz and a GDDR5 memory speed of 1400 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It features 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM)		63 Watts
Radeon R7 370 4G		110 Watts
	Difference: 47 Watts (75%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 370 4G will be 180% quicker than the Radeon HD 6670 (OEM) in general, because of its higher bandwidth. (explain)

Radeon R7 370 4G		179200 MB/sec
Radeon HD 6670 (OEM)		64000 MB/sec
	Difference: 115200 (180%)

Texel Rate

The Radeon R7 370 4G will be a lot (about 225%) faster with regards to anisotropic filtering than the Radeon HD 6670 (OEM). (explain)

Radeon R7 370 4G		62400 Mtexels/sec
Radeon HD 6670 (OEM)		19200 Mtexels/sec
	Difference: 43200 (225%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R7 370 4G is a better choice, by far. (explain)

Radeon R7 370 4G		31200 Mpixels/sec
Radeon HD 6670 (OEM)		6400 Mpixels/sec
	Difference: 24800 (388%)

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 maximum amount of data (measured in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.