GeForce GTX 285 2GB vs Radeon R7 370 4G

Intro

Compare that to the Radeon R7 370 4G, which features a core clock frequency of 975 MHz and a GDDR5 memory frequency of 1400 MHz. It also uses a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 1024 SPUs, 64 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 4G		110 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 94 Watts (85%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 370 4G should be 13% faster than the GeForce GTX 285 2GB overall, due to its greater data rate. (explain)

Radeon R7 370 4G		179200 MB/sec
GeForce GTX 285 2GB		158976 MB/sec
	Difference: 20224 (13%)

Texel Rate

The Radeon R7 370 4G is a small bit (about 20%) faster with regards to AF than the GeForce GTX 285 2GB. (explain)

Radeon R7 370 4G		62400 Mtexels/sec
GeForce GTX 285 2GB		51840 Mtexels/sec
	Difference: 10560 (20%)

Pixel Rate

The Radeon R7 370 4G will be much (about 50%) faster with regards to AA than the GeForce GTX 285 2GB, and also capable of handling higher screen resolutions while still performing well. (explain)

Radeon R7 370 4G		31200 Mpixels/sec
GeForce GTX 285 2GB		20736 Mpixels/sec
	Difference: 10464 (50%)

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 (in units of MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.