Radeon HD 5830 vs Radeon RX 470 4GB

Intro

Compare those specifications to the Radeon RX 470 4GB, which makes use of a 14 nm design. AMD has set the core frequency at 926 MHz. The GDDR5 memory is set to run at a speed of 1650 MHz on this model. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
Radeon HD 5830		175 Watts
	Difference: 55 Watts (46%)

Memory Bandwidth

As far as performance goes, the Radeon RX 470 4GB should in theory be a lot better than the Radeon HD 5830 overall. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon HD 5830		128000 MB/sec
	Difference: 83200 (65%)

Texel Rate

The Radeon RX 470 4GB will be quite a bit (about 165%) more effective at texture filtering than the Radeon HD 5830. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon HD 5830		44800 Mtexels/sec
	Difference: 73728 (165%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 470 4GB is the winner, by a large margin. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon HD 5830		12800 Mpixels/sec
	Difference: 16832 (132%)

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 across the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once 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 AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.