GeForce GTX 285 1GB vs Radeon RX 480 4GB

Intro

Compare those specifications to the Radeon RX 480 4GB, which comes with GPU clock speed of 1120 MHz, and 4096 MB of GDDR5 RAM set to run at 1750 MHz through a 256-bit bus. It also is made up of 2304 Stream Processors, 144 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480 4GB		150 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 54 Watts (36%)

Memory Bandwidth

Theoretically, the Radeon RX 480 4GB should perform a lot faster than the GeForce GTX 285 1GB overall. (explain)

Radeon RX 480 4GB		229376 MB/sec
GeForce GTX 285 1GB		158976 MB/sec
	Difference: 70400 (44%)

Texel Rate

The Radeon RX 480 4GB should be quite a bit (approximately 211%) faster with regards to AF than the GeForce GTX 285 1GB. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
GeForce GTX 285 1GB		51840 Mtexels/sec
	Difference: 109440 (211%)

Pixel Rate

The Radeon RX 480 4GB will be much (approximately 73%) better at full screen anti-aliasing than the GeForce GTX 285 1GB, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
GeForce GTX 285 1GB		20736 Mpixels/sec
	Difference: 15104 (73%)

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 data (counted in megabytes per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units of the card 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.