Radeon HD 5550 vs Radeon RX 460 2GB

Intro

Compare that to the Radeon RX 460 2GB, which features a GPU core clock speed of 1090 MHz, and 2048 MB of GDDR5 memory set to run at 1750 MHz through a 128-bit bus. It also features 896 Stream Processors, 56 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon RX 460 2GB should be 775% faster than the Radeon HD 5550 in general, because of its higher bandwidth. (explain)

Radeon RX 460 2GB		112000 MB/sec
Radeon HD 5550		12800 MB/sec
	Difference: 99200 (775%)

Texel Rate

The Radeon RX 460 2GB should be a lot (more or less 594%) better at texture filtering than the Radeon HD 5550. (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
Radeon HD 5550		8800 Mtexels/sec
	Difference: 52240 (594%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 460 2GB is a better choice, and very much so. (explain)

Radeon RX 460 2GB		17440 Mpixels/sec
Radeon HD 5550		4400 Mpixels/sec
	Difference: 13040 (296%)

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 largest amount of data (counted in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. 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 number of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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