Radeon HD 6670 (OEM) vs Radeon R9 M395X

Intro

Compare those specs to the Radeon R9 M395X, which features clock speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 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 6670 (OEM)		63 Watts
Radeon R9 M395X		125 Watts
	Difference: 62 Watts (98%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M395X should perform a lot faster than the Radeon HD 6670 (OEM) overall. (explain)

Radeon R9 M395X		160000 MB/sec
Radeon HD 6670 (OEM)		64000 MB/sec
	Difference: 96000 (150%)

Texel Rate

The Radeon R9 M395X should be a lot (more or less 382%) faster with regards to anisotropic filtering than the Radeon HD 6670 (OEM). (explain)

Radeon R9 M395X		92544 Mtexels/sec
Radeon HD 6670 (OEM)		19200 Mtexels/sec
	Difference: 73344 (382%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M395X is superior to the Radeon HD 6670 (OEM), by far. (explain)

Radeon R9 M395X		23136 Mpixels/sec
Radeon HD 6670 (OEM)		6400 Mpixels/sec
	Difference: 16736 (262%)

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 (counted in MB per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses 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 number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the video 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 that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.