GeForce GTS 450 1GB vs Radeon RX 590

Intro

Compare those specs to the Radeon RX 590, which has a core clock frequency of 1469 MHz and a GDDR5 memory frequency of 2000 MHz. It also uses a 256-bit bus, and makes use of a 12 nm design. It features 2304 SPUs, 144 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB		106 Watts
Radeon RX 590		175 Watts
	Difference: 69 Watts (65%)

Memory Bandwidth

Theoretically, the Radeon RX 590 should be quite a bit faster than the GeForce GTS 450 1GB in general. (explain)

Radeon RX 590		262144 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 204416 (354%)

Texel Rate

The Radeon RX 590 will be a lot (more or less 744%) more effective at texture filtering than the GeForce GTS 450 1GB. (explain)

Radeon RX 590		211536 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 186480 (744%)

Pixel Rate

The Radeon RX 590 will be a lot (more or less 275%) better at FSAA than the GeForce GTS 450 1GB, and capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 590		47008 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 34480 (275%)

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 (measured in megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. 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 texture map elements (texels) that are applied per second. This number is worked out by multiplying the total texture units of the card by the core 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 per second.

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