GeForce GTS 450 vs Radeon RX 5500

Intro

Compare all that to the Radeon RX 5500, which features GPU core speed of 1670 MHz, and 4096 MB of GDDR6 RAM set to run at 1750 MHz through a 128-bit bus. It also is made up 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		106 Watts
Radeon RX 5500		150 Watts
	Difference: 44 Watts (42%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 5500 should be 297% faster than the GeForce GTS 450 in general, due to its higher bandwidth. (explain)

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

Texel Rate

The Radeon RX 5500 will be quite a bit (approximately 487%) more effective at texture filtering than the GeForce GTS 450. (explain)

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

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 5500 is a better choice, by far. (explain)

Radeon RX 5500		53440 Mpixels/sec
GeForce GTS 450		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 max amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR 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 worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed 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. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.