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GeForce GT 450 (OEM) vs Radeon RX 550

Intro

The GeForce GT 450 (OEM) uses a 40 nm design. nVidia has set the core speed at 790 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this model. It features 144 SPUs along with 24 TAUs and 24 ROPs.

Compare that to the Radeon RX 550, which makes use of a 14 nm design. AMD has set the core speed at 1100 MHz. The GDDR5 memory works at a frequency of 1750 MHz on this card. It features 512 SPUs along with 32 TAUs and 16 ROPs.

Display Graphs

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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

Theoretically speaking, the Radeon RX 550 should perform just a bit faster than the GeForce GT 450 (OEM) overall. (explain)

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

Texel Rate

The Radeon RX 550 will be much (more or less 86%) faster with regards to 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 running with lots of anti-aliasing is important to you, then the GeForce GT 450 (OEM) is a better choice, though only just barely. (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

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GeForce GT 450 (OEM)

Amazon.com

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Radeon RX 550

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GT 450 (OEM) Radeon RX 550
Manufacturer nVidia AMD
Year October 2010 April 2017
Code Name GF106 Polaris 12
Memory 1536 MB 2048 MB
Core Speed 790 MHz 1100 MHz
Memory Speed 4000 MHz 7000 MHz
Power (Max TDP) 106 watts 50 watts
Bandwidth 96000 MB/sec 114688 MB/sec
Texel Rate 18960 Mtexels/sec 35200 Mtexels/sec
Pixel Rate 18960 Mpixels/sec 17600 Mpixels/sec
Unified Shaders 144 512
Texture Mapping Units 24 32
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 40 nm 14 nm
Transistors 1170 million 2200 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 4.1 OpenGL 4.5

Memory Bandwidth: Bandwidth is the max amount of data (measured in MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen 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 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GT 450 (OEM)

Amazon.com

Check prices at:

Radeon RX 550

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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