GeForce GTX 460 2GB vs Radeon RX 590

Intro

Compare those specifications to the Radeon RX 590, which features a GPU core clock speed of 1469 MHz, and 8192 MB of GDDR5 memory running at 2000 MHz through a 256-bit bus. It also features 2304 SPUs, 144 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 2GB		160 Watts
Radeon RX 590		175 Watts
	Difference: 15 Watts (9%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 590 is 128% faster than the GeForce GTX 460 2GB overall, because of its greater bandwidth. (explain)

Radeon RX 590		262144 MB/sec
GeForce GTX 460 2GB		115200 MB/sec
	Difference: 146944 (128%)

Texel Rate

The Radeon RX 590 should be much (more or less 460%) faster with regards to anisotropic filtering than the GeForce GTX 460 2GB. (explain)

Radeon RX 590		211536 Mtexels/sec
GeForce GTX 460 2GB		37800 Mtexels/sec
	Difference: 173736 (460%)

Pixel Rate

The Radeon RX 590 is much (more or less 118%) faster with regards to FSAA than the GeForce GTX 460 2GB, and should be able to handle higher resolutions better. (explain)

Radeon RX 590		47008 Mpixels/sec
GeForce GTX 460 2GB		21600 Mpixels/sec
	Difference: 25408 (118%)

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 largest amount of information (counted in megabytes per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill 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 get to the maximum fill rate.