Radeon R9 270 vs Radeon RX 470 4GB

Intro

Compare all that to the Radeon RX 470 4GB, which uses a 14 nm design. AMD has clocked the core frequency at 926 MHz. The GDDR5 memory runs at a speed of 1650 MHz on this specific model. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

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.

Ethereum Mining Hash Rate

Radeon RX 470 4GB		27 Mh/s
Radeon R9 270		15 Mh/s
	Difference: 12 (80%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
Radeon R9 270		150 Watts
	Difference: 30 Watts (25%)

Memory Bandwidth

Theoretically, the Radeon RX 470 4GB should perform a bit faster than the Radeon R9 270 in general. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon R9 270		179200 MB/sec
	Difference: 32000 (18%)

Texel Rate

The Radeon RX 470 4GB should be quite a bit (more or less 65%) more effective at texture filtering than the Radeon R9 270. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 46528 (65%)

Pixel Rate

The Radeon RX 470 4GB is just a bit (approximately 3%) faster with regards to full screen anti-aliasing than the Radeon R9 270, and able to handle higher screen resolutions better. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 832 (3%)

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 data (in units of MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. 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 rate also depends on many 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.