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Radeon HD 6750 vs Radeon RX 590

Intro

The Radeon HD 6750 comes with a clock frequency of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 720 SPUs, 36 TAUs, and 16 ROPs.

Compare those specifications to the Radeon RX 590, which has a clock speed of 1469 MHz and a GDDR5 memory frequency of 2000 MHz. It also uses a 256-bit bus, and makes use of a 12 nm design. It features 2304 SPUs, 144 TAUs, and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 86 Watts
Radeon RX 590 175 Watts
Difference: 89 Watts (103%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 590 should be a lot faster than the Radeon HD 6750 in general. (explain)

Radeon RX 590 262144 MB/sec
Radeon HD 6750 64000 MB/sec
Difference: 198144 (310%)

Texel Rate

The Radeon RX 590 should be a lot (approximately 710%) faster with regards to AF than the Radeon HD 6750. (explain)

Radeon RX 590 211536 Mtexels/sec
Radeon HD 6750 26100 Mtexels/sec
Difference: 185436 (710%)

Pixel Rate

The Radeon RX 590 should be quite a bit (approximately 305%) better at AA than the Radeon HD 6750, and also will be able to handle higher resolutions better. (explain)

Radeon RX 590 47008 Mpixels/sec
Radeon HD 6750 11600 Mpixels/sec
Difference: 35408 (305%)

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

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Radeon HD 6750

Amazon.com

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Radeon RX 590

Amazon.com

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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

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Model Radeon HD 6750 Radeon RX 590
Manufacturer AMD AMD
Year January 2011 November 2018
Code Name Juniper Pro Polaris 30
Memory 512 MB 8192 MB
Core Speed 725 MHz 1469 MHz
Memory Speed 4000 MHz 8000 MHz
Power (Max TDP) 86 watts 175 watts
Bandwidth 64000 MB/sec 262144 MB/sec
Texel Rate 26100 Mtexels/sec 211536 Mtexels/sec
Pixel Rate 11600 Mpixels/sec 47008 Mpixels/sec
Unified Shaders 720 2304
Texture Mapping Units 36 144
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 12 nm
Transistors 1040 million 5700 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 4.0 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs 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 rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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Radeon HD 6750

Amazon.com

Check prices at:

Radeon RX 590

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.

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