Radeon HD 5830 vs Radeon RX 470

Intro

Compare all of that to the Radeon RX 470, which features GPU core speed of 926 MHz, and 8192 MB of GDDR5 RAM set to run at 1650 MHz through a 256-bit bus. It also is made up of 2048 Stream Processors, 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		120 Watts
Radeon HD 5830		175 Watts
	Difference: 55 Watts (46%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 470 should be 65% faster than the Radeon HD 5830 overall, because of its higher data rate. (explain)

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

Texel Rate

The Radeon RX 470 should be a lot (more or less 165%) faster with regards to texture filtering than the Radeon HD 5830. (explain)

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

Pixel Rate

The Radeon RX 470 is quite a bit (about 132%) more effective at FSAA than the Radeon HD 5830, and also should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 470		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: Bandwidth is the max amount of data (in units of megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines 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 many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.