Radeon HD 4850 1GB vs Radeon RX 460

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon HD 4850 1GB		110 Watts
	Difference: 35 Watts (47%)

Memory Bandwidth

As far as performance goes, the Radeon RX 460 should in theory be much superior to the Radeon HD 4850 1GB in general. (explain)

Radeon RX 460		112000 MB/sec
Radeon HD 4850 1GB		63552 MB/sec
	Difference: 48448 (76%)

Texel Rate

The Radeon RX 460 should be much (more or less 144%) better at anisotropic filtering than the Radeon HD 4850 1GB. (explain)

Radeon RX 460		61040 Mtexels/sec
Radeon HD 4850 1GB		25000 Mtexels/sec
	Difference: 36040 (144%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 460 is superior to the Radeon HD 4850 1GB, by a large margin. (explain)

Radeon RX 460		17440 Mpixels/sec
Radeon HD 4850 1GB		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 (measured in megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.