Geforce GTX 670 vs Radeon R9 M395X

Intro

Compare those specs to the Radeon R9 M395X, which makes use of a 28 nm design. AMD has set the core frequency at 723 MHz. The GDDR5 RAM is set to run at a speed of 1250 MHz on this model. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X		125 Watts
Geforce GTX 670		170 Watts
	Difference: 45 Watts (36%)

Memory Bandwidth

The Geforce GTX 670 should in theory perform a little bit faster than the Radeon R9 M395X overall. (explain)

Geforce GTX 670		192000 MB/sec
Radeon R9 M395X		160000 MB/sec
	Difference: 32000 (20%)

Texel Rate

The Geforce GTX 670 is a small bit (more or less 11%) more effective at texture filtering than the Radeon R9 M395X. (explain)

Geforce GTX 670		102480 Mtexels/sec
Radeon R9 M395X		92544 Mtexels/sec
	Difference: 9936 (11%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 670 is superior to the Radeon R9 M395X, and very much so. (explain)

Geforce GTX 670		29280 Mpixels/sec
Radeon R9 M395X		23136 Mpixels/sec
	Difference: 6144 (27%)

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 largest amount of information (measured in MB per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 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 better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per 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 - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.