Radeon HD 7790 vs Radeon RX 570

Intro

Compare that to the Radeon RX 570, which comes with a clock speed of 1168 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 256-bit bus, and uses a 14 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

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 7790		4330 points
	Difference: 7778 (180%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
Radeon RX 570		150 Watts
	Difference: 65 Watts (76%)

Memory Bandwidth

As far as performance goes, the Radeon RX 570 should in theory be a lot better than the Radeon HD 7790 overall. (explain)

Radeon RX 570		229376 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 133376 (139%)

Texel Rate

The Radeon RX 570 will be much (more or less 167%) more effective at AF than the Radeon HD 7790. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 93504 (167%)

Pixel Rate

The Radeon RX 570 should be quite a bit (more or less 134%) better at anti-aliasing than the Radeon HD 7790, and will be able to handle higher resolutions without slowing down too much. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 21376 (134%)

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: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.