GeForce GTX 285 1GB vs Radeon R9 270X

Intro

Compare all that to the Radeon R9 270X, which has a core clock frequency of 1000 MHz and a GDDR5 memory frequency of 1400 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 1280 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X		180 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 24 Watts (13%)

Memory Bandwidth

In theory, the Radeon R9 270X should be a bit faster than the GeForce GTX 285 1GB in general. (explain)

Radeon R9 270X		179200 MB/sec
GeForce GTX 285 1GB		158976 MB/sec
	Difference: 20224 (13%)

Texel Rate

The Radeon R9 270X should be much (more or less 54%) faster with regards to anisotropic filtering than the GeForce GTX 285 1GB. (explain)

Radeon R9 270X		80000 Mtexels/sec
GeForce GTX 285 1GB		51840 Mtexels/sec
	Difference: 28160 (54%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 270X is superior to the GeForce GTX 285 1GB, and very much so. (explain)

Radeon R9 270X		32000 Mpixels/sec
GeForce GTX 285 1GB		20736 Mpixels/sec
	Difference: 11264 (54%)

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 max amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core 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 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 reach the max fill rate.