Radeon HD 6670 (OEM) 1GB vs Radeon R9 M375X

Intro

Compare those specs to the Radeon R9 M375X, which has a clock speed of 1015 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M375X will be 13% faster than the Radeon HD 6670 (OEM) 1GB in general, because of its higher data rate. (explain)

Radeon R9 M375X		72000 MB/sec
Radeon HD 6670 (OEM) 1GB		64000 MB/sec
	Difference: 8000 (13%)

Texel Rate

The Radeon R9 M375X will be much (about 111%) better at anisotropic filtering than the Radeon HD 6670 (OEM) 1GB. (explain)

Radeon R9 M375X		40600 Mtexels/sec
Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
	Difference: 21400 (111%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M375X is superior to the Radeon HD 6670 (OEM) 1GB, by a large margin. (explain)

Radeon R9 M375X		16240 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		6400 Mpixels/sec
	Difference: 9840 (154%)

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 max amount of data (counted in MB per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.