GeForce GTS 450 1GB vs Radeon RX 5500

Intro

Compare all of that to the Radeon RX 5500, which comes with a clock frequency of 1670 MHz and a GDDR6 memory frequency of 1750 MHz. It also features a 128-bit bus, and uses a 7 nm design. It is comprised of 1408 SPUs, 88 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB		106 Watts
Radeon RX 5500		150 Watts
	Difference: 44 Watts (42%)

Memory Bandwidth

Performance-wise, the Radeon RX 5500 should in theory be much better than the GeForce GTS 450 1GB overall. (explain)

Radeon RX 5500		229376 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 171648 (297%)

Texel Rate

The Radeon RX 5500 will be quite a bit (approximately 487%) better at anisotropic filtering than the GeForce GTS 450 1GB. (explain)

Radeon RX 5500		146960 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 121904 (487%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 5500 is a better choice, by a large margin. (explain)

Radeon RX 5500		53440 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 40912 (327%)

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: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total amount of texture units by the core clock 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.