Radeon HD 4790 vs Radeon RX 460 2GB

Intro

Compare those specifications to the Radeon RX 460 2GB, which makes use of a 14 nm design. AMD has set the core speed at 1090 MHz. The GDDR5 RAM is set to run at a speed of 1750 MHz on this particular card. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon RX 460 2GB should perform a little bit faster than the Radeon HD 4790 in general. (explain)

Radeon RX 460 2GB		112000 MB/sec
Radeon HD 4790		102400 MB/sec
	Difference: 9600 (9%)

Texel Rate

The Radeon RX 460 2GB will be much (more or less 218%) more effective at texture filtering than the Radeon HD 4790. (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
Radeon HD 4790		19200 Mtexels/sec
	Difference: 41840 (218%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 460 2GB is the winner, and very much so. (explain)

Radeon RX 460 2GB		17440 Mpixels/sec
Radeon HD 4790		9600 Mpixels/sec
	Difference: 7840 (82%)

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 (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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