GeForce GT 450 (OEM) vs Radeon RX 550

Intro

Compare all of that to the Radeon RX 550, which has clock speeds of 1100 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 RAM. It features 512 SPUs along with 32 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
GeForce GT 450 (OEM)		106 Watts
	Difference: 56 Watts (112%)

Memory Bandwidth

In theory, the Radeon RX 550 will be 19% quicker than the GeForce GT 450 (OEM) in general, because of its higher bandwidth. (explain)

Radeon RX 550		114688 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 18688 (19%)

Texel Rate

The Radeon RX 550 is a lot (more or less 86%) more effective at anisotropic filtering than the GeForce GT 450 (OEM). (explain)

Radeon RX 550		35200 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 16240 (86%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GT 450 (OEM) is superior to the Radeon RX 550, not by a very large margin though. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
Radeon RX 550		17600 Mpixels/sec
	Difference: 1360 (8%)

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 data (measured in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the card will be at handling 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 that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.