Radeon HD 4850 512MB vs Radeon RX 460

Intro

Compare those specs to the Radeon RX 460, which makes use of a 14 nm design. AMD has set the core speed at 1090 MHz. The GDDR5 RAM runs at a frequency of 1750 MHz on this model. It features 896 SPUs along with 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon HD 4850 512MB		110 Watts
	Difference: 35 Watts (47%)

Memory Bandwidth

In theory, the Radeon RX 460 should perform quite a bit faster than the Radeon HD 4850 512MB overall. (explain)

Radeon RX 460		112000 MB/sec
Radeon HD 4850 512MB		63552 MB/sec
	Difference: 48448 (76%)

Texel Rate

The Radeon RX 460 will be quite a bit (more or less 144%) better at texture filtering than the Radeon HD 4850 512MB. (explain)

Radeon RX 460		61040 Mtexels/sec
Radeon HD 4850 512MB		25000 Mtexels/sec
	Difference: 36040 (144%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 460 is a better choice, by far. (explain)

Radeon RX 460		17440 Mpixels/sec
Radeon HD 4850 512MB		10000 Mpixels/sec
	Difference: 7440 (74%)

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 data (counted in MB per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total amount of texture units by the core 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.