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Radeon HD 7750 vs Radeon RX 590

Intro

The Radeon HD 7750 has a core clock speed of 800 MHz and a GDDR5 memory frequency of 1125 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It is comprised of 512 SPUs, 32 Texture Address Units, and 16 ROPs.

Compare those specifications to the Radeon RX 590, which comes with a GPU core clock speed of 1469 MHz, and 8192 MB of GDDR5 memory set to run at 2000 MHz through a 256-bit bus. It also features 2304 Stream Processors, 144 Texture Address Units, and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750 55 Watts
Radeon RX 590 175 Watts
Difference: 120 Watts (218%)

Memory Bandwidth

The Radeon RX 590 should in theory perform much faster than the Radeon HD 7750 in general. (explain)

Radeon RX 590 262144 MB/sec
Radeon HD 7750 72000 MB/sec
Difference: 190144 (264%)

Texel Rate

The Radeon RX 590 is a lot (more or less 726%) better at AF than the Radeon HD 7750. (explain)

Radeon RX 590 211536 Mtexels/sec
Radeon HD 7750 25600 Mtexels/sec
Difference: 185936 (726%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 590 is a better choice, by a large margin. (explain)

Radeon RX 590 47008 Mpixels/sec
Radeon HD 7750 12800 Mpixels/sec
Difference: 34208 (267%)

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 7750

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.

Specifications

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Model Radeon HD 7750 Radeon RX 590
Manufacturer AMD AMD
Year February 2012 November 2018
Code Name Cape Verde Pro Polaris 30
Memory 1024 MB 8192 MB
Core Speed 800 MHz 1469 MHz
Memory Speed 4500 MHz 8000 MHz
Power (Max TDP) 55 watts 175 watts
Bandwidth 72000 MB/sec 262144 MB/sec
Texel Rate 25600 Mtexels/sec 211536 Mtexels/sec
Pixel Rate 12800 Mpixels/sec 47008 Mpixels/sec
Unified Shaders 512 2304
Texture Mapping Units 32 144
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 28 nm 12 nm
Transistors 1500 million 5700 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.1 DirectX 12.0
OpenGL Version OpenGL 4.2 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the 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 number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 7750

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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