Radeon HD 7850 vs Radeon RX 480

Intro

Compare those specifications to the Radeon RX 480, which comes with GPU core speed of 1120 MHz, and 8192 MB of GDDR5 memory set to run at 2000 MHz through a 256-bit bus. It also is made up of 2304 SPUs, 144 Texture Address Units, and 32 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX 480		13349 points
Radeon HD 7850		5200 points
	Difference: 8149 (157%)

Zcash Mining Hash Rate

Radeon RX 480		280 Sol/s
Radeon HD 7850		171 Sol/s
	Difference: 109 (64%)

Ethereum Mining Hash Rate

Radeon RX 480		27 Mh/s
Radeon HD 7850		13 Mh/s
	Difference: 14 (108%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850		130 Watts
Radeon RX 480		150 Watts
	Difference: 20 Watts (15%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 480 should be 71% faster than the Radeon HD 7850 overall, because of its higher data rate. (explain)

Radeon RX 480		262144 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 108544 (71%)

Texel Rate

The Radeon RX 480 should be a lot (about 193%) faster with regards to anisotropic filtering than the Radeon HD 7850. (explain)

Radeon RX 480		161280 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 106240 (193%)

Pixel Rate

The Radeon RX 480 is quite a bit (more or less 30%) more effective at full screen anti-aliasing than the Radeon HD 7850, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon RX 480		35840 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 8320 (30%)

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 megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.