GeForce GTS 450 1GB vs Radeon RX 460 2GB

Intro

Compare those specs to the Radeon RX 460 2GB, which features clock speeds of 1090 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 RAM. It features 896 SPUs along with 56 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 2GB		75 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 31 Watts (41%)

Memory Bandwidth

In theory, the Radeon RX 460 2GB should perform quite a bit faster than the GeForce GTS 450 1GB overall. (explain)

Radeon RX 460 2GB		112000 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 54272 (94%)

Texel Rate

The Radeon RX 460 2GB is much (about 144%) more effective at texture filtering than the GeForce GTS 450 1GB. (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 35984 (144%)

Pixel Rate

The Radeon RX 460 2GB will be a lot (about 39%) faster with regards to FSAA than the GeForce GTS 450 1GB, and also able to handle higher screen resolutions better. (explain)

Radeon RX 460 2GB		17440 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 4912 (39%)

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 largest amount of information (measured in megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.