Radeon HD 6970 vs Radeon RX 470

Intro

Compare those specifications to the Radeon RX 470, which has core clock speeds of 926 MHz on the GPU, and 1650 MHz on the 8192 MB of GDDR5 memory. It features 2048 SPUs along with 128 TAUs 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.

3DMark Fire Strike Graphics Score

Radeon RX 470		11756 points
Radeon HD 6970		3470 points
	Difference: 8286 (239%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon HD 6970		250 Watts
	Difference: 130 Watts (108%)

Memory Bandwidth

In theory, the Radeon RX 470 will be 20% quicker than the Radeon HD 6970 overall, because of its greater data rate. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 6970		176000 MB/sec
	Difference: 35200 (20%)

Texel Rate

The Radeon RX 470 will be much (approximately 40%) faster with regards to AF than the Radeon HD 6970. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 6970		84480 Mtexels/sec
	Difference: 34048 (40%)

Pixel Rate

The Radeon RX 470 should be a bit (more or less 5%) more effective at full screen anti-aliasing than the Radeon HD 6970, and also able to handle higher screen resolutions better. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 6970		28160 Mpixels/sec
	Difference: 1472 (5%)

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 maximum amount of information (counted in MB per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units 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 maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. 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 fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.