Compare any two graphics cards:
VS

Radeon HD 6990 vs Radeon RX 580

Intro

The Radeon HD 6990 uses a 40 nm design. AMD has clocked the core speed at 830 MHz. The GDDR5 memory runs at a frequency of 1250 MHz on this particular model. It features 1536 SPUs as well as 96 Texture Address Units and 32 ROPs.

Compare that to the Radeon RX 580, which makes use of a 14 nm design. AMD has set the core frequency at 1257 MHz. The GDDR5 memory is set to run at a speed of 2000 MHz on this specific model. It features 2304 SPUs along with 144 Texture Address Units and 32 Rasterization Operator 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 580 13630 points
Radeon HD 6990 5820 points
Difference: 7810 (134%)

Ethereum Mining Hash Rate

Radeon RX 580 28 Mh/s
Radeon HD 6990 24 Mh/s
Difference: 4 (17%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 580 185 Watts
Radeon HD 6990 375 Watts
Difference: 190 Watts (103%)

Memory Bandwidth

The Radeon HD 6990 should in theory be quite a bit faster than the Radeon RX 580 in general. (explain)

Radeon HD 6990 320000 MB/sec
Radeon RX 580 262144 MB/sec
Difference: 57856 (22%)

Texel Rate

The Radeon RX 580 is a small bit (more or less 14%) more effective at texture filtering than the Radeon HD 6990. (explain)

Radeon RX 580 181008 Mtexels/sec
Radeon HD 6990 159360 Mtexels/sec
Difference: 21648 (14%)

Pixel Rate

The Radeon HD 6990 should be much (about 32%) more effective at full screen anti-aliasing than the Radeon RX 580, and will be able to handle higher resolutions while still performing well. (explain)

Radeon HD 6990 53120 Mpixels/sec
Radeon RX 580 40224 Mpixels/sec
Difference: 12896 (32%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Display Prices

Hide Prices

Radeon HD 6990

Amazon.com

Check prices at:

Radeon RX 580

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Display Specifications

Hide Specifications

Model Radeon HD 6990 Radeon RX 580
Manufacturer AMD AMD
Year March 2011 April 2017
Code Name Antilles Polaris 20
Memory 2048 MB (x2) 8192 MB
Core Speed 830 MHz (x2) 1257 MHz
Memory Speed 5000 MHz (x2) 8000 MHz
Power (Max TDP) 375 watts 185 watts
Bandwidth 320000 MB/sec 262144 MB/sec
Texel Rate 159360 Mtexels/sec 181008 Mtexels/sec
Pixel Rate 53120 Mpixels/sec 40224 Mpixels/sec
Unified Shaders 1536 (x2) 2304
Texture Mapping Units 96 (x2) 144
Render Output Units 32 (x2) 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit (x2) 256-bit
Fab Process 40 nm 14 nm
Transistors 2640 million 5700 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 4.1 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock 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 output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6990

Amazon.com

Check prices at:

Radeon RX 580

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Comments

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *


*

WordPress Anti Spam by WP-SpamShield