Radeon HD 7850 vs Radeon RX 470

Intro

Compare those specifications to the Radeon RX 470, which uses a 14 nm design. AMD has set the core speed at 926 MHz. The GDDR5 RAM works at a speed of 1650 MHz on this card. It features 2048 SPUs as well as 128 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 470		11756 points
Radeon HD 7850		5200 points
	Difference: 6556 (126%)

Zcash Mining Hash Rate

Radeon RX 470		289 Sol/s
Radeon HD 7850		171 Sol/s
	Difference: 118 (69%)

Ethereum Mining Hash Rate

Radeon RX 470		26 Mh/s
Radeon HD 7850		13 Mh/s
	Difference: 13 (100%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon HD 7850		130 Watts
	Difference: 10 Watts (8%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 470 should be much faster than the Radeon HD 7850 in general. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 57600 (38%)

Texel Rate

The Radeon RX 470 is much (more or less 115%) more effective at anisotropic filtering than the Radeon HD 7850. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 63488 (115%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 470 is superior to the Radeon HD 7850, though only just barely. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 2112 (8%)

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 max amount of information (in units of megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the video 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 most pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The number 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 lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.