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Radeon HD 5670 vs Radeon RX 460

Intro

The Radeon HD 5670 makes use of a 40 nm design. AMD has set the core speed at 775 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this specific model. It features 400(80x5) SPUs as well as 20 Texture Address Units and 8 ROPs.

Compare all that to the Radeon RX 460, which uses a 14 nm design. AMD has set the core speed at 1090 MHz. The GDDR5 RAM works at a frequency of 1750 MHz on this particular model. It features 896 SPUs along with 56 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670 61 Watts
Radeon RX 460 75 Watts
Difference: 14 Watts (23%)

Memory Bandwidth

Theoretically, the Radeon RX 460 should perform quite a bit faster than the Radeon HD 5670 in general. (explain)

Radeon RX 460 112000 MB/sec
Radeon HD 5670 64000 MB/sec
Difference: 48000 (75%)

Texel Rate

The Radeon RX 460 should be a lot (more or less 294%) better at AF than the Radeon HD 5670. (explain)

Radeon RX 460 61040 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 45540 (294%)

Pixel Rate

The Radeon RX 460 is much (approximately 181%) faster with regards to anti-aliasing than the Radeon HD 5670, and able to handle higher screen resolutions better. (explain)

Radeon RX 460 17440 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 11240 (181%)

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 5670

Amazon.com

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Radeon RX 460

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 5670 Radeon RX 460
Manufacturer AMD AMD
Year January 14, 2010 August 2016
Code Name Redwood XT Polaris 11
Memory 1024 MB 4096 MB
Core Speed 775 MHz 1090 MHz
Memory Speed 4000 MHz 7000 MHz
Power (Max TDP) 61 watts 75 watts
Bandwidth 64000 MB/sec 112000 MB/sec
Texel Rate 15500 Mtexels/sec 61040 Mtexels/sec
Pixel Rate 6200 Mpixels/sec 17440 Mpixels/sec
Unified Shaders 400(80x5) 896
Texture Mapping Units 20 56
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 14 nm
Transistors 627 million 3000 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 3.2 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 can be applied in one second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number 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 is also dependant on quite a few other factors, most notably 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 5670

Amazon.com

Check prices at:

Radeon RX 460

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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