GeForce GTX 285 2GB vs Radeon R9 380X

Intro

Compare that to the Radeon R9 380X, which makes use of a 28 nm design. AMD has clocked the core frequency at 970 MHz. The GDDR5 memory runs at a frequency of 1425 MHz on this specific model. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380X		190 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 14 Watts (7%)

Memory Bandwidth

As far as performance goes, the Radeon R9 380X should theoretically be a bit superior to the GeForce GTX 285 2GB in general. (explain)

Radeon R9 380X		182400 MB/sec
GeForce GTX 285 2GB		158976 MB/sec
	Difference: 23424 (15%)

Texel Rate

The Radeon R9 380X will be much (approximately 140%) faster with regards to AF than the GeForce GTX 285 2GB. (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GTX 285 2GB		51840 Mtexels/sec
	Difference: 72320 (140%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 380X is a better choice, by far. (explain)

Radeon R9 380X		31040 Mpixels/sec
GeForce GTX 285 2GB		20736 Mpixels/sec
	Difference: 10304 (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 (measured in MB 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 its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.