GeForce GTX 1050 vs Radeon HD 4830 1GB

Intro

Compare those specs to the Radeon HD 4830 1GB, which comes with core speeds of 575 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR4 RAM. It features 640(128x5) SPUs as well as 32 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 4830 1GB		95 Watts
	Difference: 20 Watts (27%)

Memory Bandwidth

In theory, the GeForce GTX 1050 should be 99% faster than the Radeon HD 4830 1GB overall, because of its higher data rate. (explain)

GeForce GTX 1050		114688 MB/sec
Radeon HD 4830 1GB		57600 MB/sec
	Difference: 57088 (99%)

Texel Rate

The GeForce GTX 1050 is quite a bit (about 194%) more effective at anisotropic filtering than the Radeon HD 4830 1GB. (explain)

GeForce GTX 1050		54160 Mtexels/sec
Radeon HD 4830 1GB		18400 Mtexels/sec
	Difference: 35760 (194%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 1050 is the winner, and very much so. (explain)

GeForce GTX 1050		43328 Mpixels/sec
Radeon HD 4830 1GB		9200 Mpixels/sec
	Difference: 34128 (371%)

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 (counted in MB per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the 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 chip could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.