Geforce GTX 670 vs Radeon R9 285

Intro

Compare those specifications to the Radeon R9 285, which features a clock frequency of 918 MHz and a GDDR5 memory speed of 1375 MHz. It also makes use of a 256-bit bus, and uses a 28 nm design. It is made up of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 285		8500 points
Geforce GTX 670		7351 points
	Difference: 1149 (16%)

Ethereum Mining Hash Rate

Radeon R9 285		18 Mh/s
Geforce GTX 670		13 Mh/s
	Difference: 5 (38%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670		170 Watts
Radeon R9 285		190 Watts
	Difference: 20 Watts (12%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 670 should be 9% faster than the Radeon R9 285 in general, due to its greater data rate. (explain)

Geforce GTX 670		192000 MB/sec
Radeon R9 285		176000 MB/sec
	Difference: 16000 (9%)

Texel Rate

The Radeon R9 285 will be a little bit (more or less 0%) faster with regards to texture filtering than the Geforce GTX 670. (explain)

Radeon R9 285		102816 Mtexels/sec
Geforce GTX 670		102480 Mtexels/sec
	Difference: 336 (0%)

Pixel Rate

The Radeon R9 285 is just a bit (more or less 0%) faster with regards to full screen anti-aliasing than the Geforce GTX 670, and should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon R9 285		29376 Mpixels/sec
Geforce GTX 670		29280 Mpixels/sec
	Difference: 96 (0%)

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 (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. In the case of 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). 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 ability to reach the max fill rate.