GeForce GTX 1050 vs Radeon HD 4890 1GB

Intro

Compare that to the Radeon HD 4890 1GB, which has clock speeds of 1000 MHz on the GPU, and 975 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1050		75 Watts
Radeon HD 4890 1GB		190 Watts
	Difference: 115 Watts (153%)

Memory Bandwidth

Theoretically, the Radeon HD 4890 1GB should perform a bit faster than the GeForce GTX 1050 overall. (explain)

Radeon HD 4890 1GB		124800 MB/sec
GeForce GTX 1050		114688 MB/sec
	Difference: 10112 (9%)

Texel Rate

The GeForce GTX 1050 will be quite a bit (approximately 35%) better at anisotropic filtering than the Radeon HD 4890 1GB. (explain)

GeForce GTX 1050		54160 Mtexels/sec
Radeon HD 4890 1GB		40000 Mtexels/sec
	Difference: 14160 (35%)

Pixel Rate

The GeForce GTX 1050 is much (approximately 171%) more effective at AA than the Radeon HD 4890 1GB, and will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 1050		43328 Mpixels/sec
Radeon HD 4890 1GB		16000 Mpixels/sec
	Difference: 27328 (171%)

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 MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's 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 texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core speed of the card. 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 rate is also dependant on many 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.