Radeon HD 4850 1GB vs Radeon RX 550

Intro

Compare those specs to the Radeon RX 550, which has a core clock speed of 1100 MHz and a GDDR5 memory speed of 1750 MHz. It also features a 128-bit bus, and uses a 14 nm design. It is comprised of 512 SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
Radeon HD 4850 1GB		110 Watts
	Difference: 60 Watts (120%)

Memory Bandwidth

Performance-wise, the Radeon RX 550 should in theory be a lot better than the Radeon HD 4850 1GB in general. (explain)

Radeon RX 550		114688 MB/sec
Radeon HD 4850 1GB		63552 MB/sec
	Difference: 51136 (80%)

Texel Rate

The Radeon RX 550 is quite a bit (approximately 41%) better at AF than the Radeon HD 4850 1GB. (explain)

Radeon RX 550		35200 Mtexels/sec
Radeon HD 4850 1GB		25000 Mtexels/sec
	Difference: 10200 (41%)

Pixel Rate

The Radeon RX 550 is a lot (about 76%) more effective at AA than the Radeon HD 4850 1GB, and also should be capable of handling higher screen resolutions better. (explain)

Radeon RX 550		17600 Mpixels/sec
Radeon HD 4850 1GB		10000 Mpixels/sec
	Difference: 7600 (76%)

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 maximum amount of information (counted in MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.