Geforce GTX 670 vs Radeon R9 M295X

Intro

Compare all of that to the Radeon R9 M295X, which makes use of a 28 nm design. AMD has clocked the core frequency at 750 MHz. The GDDR5 memory is set to run at a frequency of 1375 MHz on this specific card. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
Geforce GTX 670		170 Watts
	Difference: 45 Watts (36%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 670 should perform just a bit faster than the Radeon R9 M295X overall. (explain)

Geforce GTX 670		192000 MB/sec
Radeon R9 M295X		176000 MB/sec
	Difference: 16000 (9%)

Texel Rate

The Geforce GTX 670 will be a little bit (approximately 7%) faster with regards to anisotropic filtering than the Radeon R9 M295X. (explain)

Geforce GTX 670		102480 Mtexels/sec
Radeon R9 M295X		96000 Mtexels/sec
	Difference: 6480 (7%)

Pixel Rate

The Geforce GTX 670 should be much (approximately 22%) faster with regards to full screen anti-aliasing than the Radeon R9 M295X, and able to handle higher resolutions without slowing down too much. (explain)

Geforce GTX 670		29280 Mpixels/sec
Radeon R9 M295X		24000 Mpixels/sec
	Difference: 5280 (22%)

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 max amount of data (in units of megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill 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 reach the maximum fill rate.