Radeon HD 4850 1GB vs Radeon RX 550

Intro

Compare all of that to the Radeon RX 550, which uses a 14 nm design. AMD has set the core speed at 1100 MHz. The GDDR5 memory works at a speed of 1750 MHz on this card. It features 512 SPUs as well as 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

Theoretically speaking, the Radeon RX 550 should perform a lot faster than the Radeon HD 4850 1GB overall. (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 (about 41%) faster with regards to texture filtering 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 should be much (about 76%) more effective at anti-aliasing than the Radeon HD 4850 1GB, and also capable of handling higher 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 max amount of information (measured in megabytes per second) that can be transferred across the external memory interface within a second. It's 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 once again. If DDR5, multiply by 4 instead. The higher 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 number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

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