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Radeon HD 4870 X2 vs Radeon RX 590

Intro

The Radeon HD 4870 X2 features core speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 RAM. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.

Compare those specifications to the Radeon RX 590, which uses a 12 nm design. AMD has clocked the core frequency at 1469 MHz. The GDDR5 RAM works at a frequency of 2000 MHz on this model. It features 2304 SPUs as well as 144 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 590 175 Watts
Radeon HD 4870 X2 350 Watts
Difference: 175 Watts (100%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 590 should be just a bit faster than the Radeon HD 4870 X2 overall. (explain)

Radeon RX 590 262144 MB/sec
Radeon HD 4870 X2 230400 MB/sec
Difference: 31744 (14%)

Texel Rate

The Radeon RX 590 is much (more or less 253%) more effective at AF than the Radeon HD 4870 X2. (explain)

Radeon RX 590 211536 Mtexels/sec
Radeon HD 4870 X2 60000 Mtexels/sec
Difference: 151536 (253%)

Pixel Rate

The Radeon RX 590 is quite a bit (about 96%) better at anti-aliasing than the Radeon HD 4870 X2, and also able to handle higher screen resolutions more effectively. (explain)

Radeon RX 590 47008 Mpixels/sec
Radeon HD 4870 X2 24000 Mpixels/sec
Difference: 23008 (96%)

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

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Radeon HD 4870 X2

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 4870 X2 Radeon RX 590
Manufacturer AMD AMD
Year Aug 12, 2008 November 2018
Code Name R700 Polaris 30
Memory 1024 MB (x2) 8192 MB
Core Speed 750 MHz (x2) 1469 MHz
Memory Speed 3600 MHz (x2) 8000 MHz
Power (Max TDP) 350 watts 175 watts
Bandwidth 230400 MB/sec 262144 MB/sec
Texel Rate 60000 Mtexels/sec 211536 Mtexels/sec
Pixel Rate 24000 Mpixels/sec 47008 Mpixels/sec
Unified Shaders 800(160x5) (x2) 2304
Texture Mapping Units 40 (x2) 144
Render Output Units 16 (x2) 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit (x2) 256-bit
Fab Process 55 nm 12 nm
Transistors 956 million 5700 million
Bus PCIe 2.0 x16 (PCIe bridge) PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 12.0
OpenGL Version OpenGL 3.0 OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total number 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 processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4870 X2

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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