Geforce GTX 670 vs Radeon R9 M385X

Intro

Compare those specifications to the Radeon R9 M385X, which makes use of a 28 nm design. AMD has clocked the core frequency at 1100 MHz. The GDDR5 memory works at a speed of 1500 MHz on this specific model. It features 896 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Geforce GTX 670 should be much faster than the Radeon R9 M385X overall. (explain)

Geforce GTX 670		192000 MB/sec
Radeon R9 M385X		96000 MB/sec
	Difference: 96000 (100%)

Texel Rate

The Geforce GTX 670 is quite a bit (more or less 66%) more effective at anisotropic filtering than the Radeon R9 M385X. (explain)

Geforce GTX 670		102480 Mtexels/sec
Radeon R9 M385X		61600 Mtexels/sec
	Difference: 40880 (66%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Geforce GTX 670 is superior to the Radeon R9 M385X, and very much so. (explain)

Geforce GTX 670		29280 Mpixels/sec
Radeon R9 M385X		17600 Mpixels/sec
	Difference: 11680 (66%)

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 information (counted in MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units of the card by the core clock 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to 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 memory bandwidth is, the lower the potential to get to the max fill rate.