Radeon HD 7950 3GB vs Radeon RX 570

Intro

Compare those specs to the Radeon RX 570, which has a clock frequency of 1168 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 256-bit bus, and makes use of a 14 nm design. It features 2048 SPUs, 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.

Zcash Mining Hash Rate

Radeon RX 570		298 Sol/s
Radeon HD 7950 3GB		229 Sol/s
	Difference: 69 (30%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 570		150 Watts
Radeon HD 7950 3GB		200 Watts
	Difference: 50 Watts (33%)

Memory Bandwidth

The Radeon HD 7950 3GB should in theory be a small bit faster than the Radeon RX 570 overall. (explain)

Radeon HD 7950 3GB		240000 MB/sec
Radeon RX 570		229376 MB/sec
	Difference: 10624 (5%)

Texel Rate

The Radeon RX 570 should be a lot (about 67%) more effective at AF than the Radeon HD 7950 3GB. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon HD 7950 3GB		89600 Mtexels/sec
	Difference: 59904 (67%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 570 is superior to the Radeon HD 7950 3GB, by far. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon HD 7950 3GB		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 max amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount of texture units by the core clock 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 maximum amount of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.