Radeon HD 5550 vs Radeon RX 470

Intro

Compare those specs to the Radeon RX 470, which has clock speeds of 926 MHz on the GPU, and 1650 MHz on the 8192 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon RX 470 should in theory be quite a bit better than the Radeon HD 5550 in general. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 5550		12800 MB/sec
	Difference: 198400 (1550%)

Texel Rate

The Radeon RX 470 is a lot (more or less 1247%) faster with regards to texture filtering than the Radeon HD 5550. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 5550		8800 Mtexels/sec
	Difference: 109728 (1247%)

Pixel Rate

The Radeon RX 470 is much (about 573%) better at anti-aliasing than the Radeon HD 5550, and will be able to handle higher screen resolutions while still performing well. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 5550		4400 Mpixels/sec
	Difference: 25232 (573%)

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 maximum amount of data (measured in megabytes per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.