Radeon HD 6950 vs Radeon RX 570

Intro

Compare those specs to the Radeon RX 570, which comes with a clock frequency of 1168 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 256-bit memory bus, and uses a 14 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation 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 570		12108 points
Radeon HD 6950		3240 points
	Difference: 8868 (274%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 570		150 Watts
Radeon HD 6950		200 Watts
	Difference: 50 Watts (33%)

Memory Bandwidth

In theory, the Radeon RX 570 will be 43% faster than the Radeon HD 6950 overall, because of its higher bandwidth. (explain)

Radeon RX 570		229376 MB/sec
Radeon HD 6950		160000 MB/sec
	Difference: 69376 (43%)

Texel Rate

The Radeon RX 570 is much (more or less 112%) more effective at AF than the Radeon HD 6950. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon HD 6950		70400 Mtexels/sec
	Difference: 79104 (112%)

Pixel Rate

The Radeon RX 570 is quite a bit (about 46%) better at FSAA than the Radeon HD 6950, and also capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon HD 6950		25600 Mpixels/sec
	Difference: 11776 (46%)

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 information (measured in MB per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of texture units 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of 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 output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.