GeForce GT 450 (OEM) vs Radeon RX 550

Intro

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

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

The Radeon RX 550, in theory, should be a bit faster than the GeForce GT 450 (OEM) in general. (explain)

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

Texel Rate

The Radeon RX 550 is much (approximately 86%) better at texture 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

The GeForce GT 450 (OEM) is a little bit (approximately 8%) faster with regards to full screen anti-aliasing than the Radeon RX 550, and also able to handle higher screen resolutions more effectively. (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 information (in units of MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 can be applied per 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

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