Radeon HD 4830 512MB vs Radeon RX 460

Intro

Compare those specs to the Radeon RX 460, which features GPU clock speed of 1090 MHz, and 4096 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also features 896 Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon HD 4830 512MB		95 Watts
	Difference: 20 Watts (27%)

Memory Bandwidth

The Radeon RX 460 should theoretically be much faster than the Radeon HD 4830 512MB in general. (explain)

Radeon RX 460		112000 MB/sec
Radeon HD 4830 512MB		57600 MB/sec
	Difference: 54400 (94%)

Texel Rate

The Radeon RX 460 should be a lot (approximately 232%) better at anisotropic filtering than the Radeon HD 4830 512MB. (explain)

Radeon RX 460		61040 Mtexels/sec
Radeon HD 4830 512MB		18400 Mtexels/sec
	Difference: 42640 (232%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 460 is a better choice, by far. (explain)

Radeon RX 460		17440 Mpixels/sec
Radeon HD 4830 512MB		9200 Mpixels/sec
	Difference: 8240 (90%)

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 maximum amount of data (counted in MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

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