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ASRock RX 5600 XT Phantom Gaming D3 Review

Rating: 7.5.

It has been just over two months since AMD released its newest Navi-based GPU, the RX 5600 XT. Since then it feels like the world has been flipped upside down, but we are continuing our coverage of this GPU with a look at our fourth partner card. This model is the ASRock Phantom Gaming D3, where the D3 signifies this is a triple-fan cooler. A more compact ‘D2' model is also available, with – yep, you guessed it! – a dual-fan cooler.

ASRock is still a relative new-comer to the GPU space, and the RX 5600 XT Phantom Gaming D3 is only the third Navi-based GPU we have seen from the company – the others being the RX 5700 XT Taichi X OC+, as well as the more modest RX 5500 XT Challenger 8GB. Offering a triple-fan cooler, a thick heatsink and some relatively simple RGB lighting, how does this 5600 XT compare to the likes of the Sapphire Pulse and Gigabyte Gaming OC?

RX 5600 XT  RX 5700 RX 5700 XT   RX Vega 56 RX Vega 64 
Architecture Navi Navi Navi Vega 10 Vega 10
Manufacturing Process 7nm 7nm 7nm 14nm 14nm
Transistor Count 10.3 billion 10.3 billion 10.3 billion 12.5 billion 12.5 billion
Die Size  251mm² 251mm² 251mm² 486mm² 495mm²
Compute Units  36 36 40 56 64
Stream Processors  2304 2304 2560 3584 4096
Base GPU Clock n/a Up to 1465MHz Up to 1605MHz 1156 MHz 1274 MHz
Game GPU Clock 1375MHz Up to 1625MHz Up to 1755MHz n/a n/a
Boost GPU Clock Up to 1560MHz Up to 1725MHz Up to 1905MHz 1471 MHz 1546 MHz
Peak Engine Clock n/a n/a n/a 1590 MHz  1630 MHz
Peak SP Performance Up to 7.19 TFLOPS Up to 7.95 TFLOPS Up to 9.75 TFLOPS Up to 10.5 TFLOPS Up to 12.7 TFLOPS
Peak Half Precision Performance Up to 14.4 TFLOPS Up to 15.9 TFLOPS Up to 19.5 TFLOPS Up to 21.0 TFLOPS Up to 25.3 TFLOPS
Peak Texture Fill-Rate Up to 224.6 GT/s Up to 248.4 GT/s Up to 304.8 GT/s  Up to 330.0 GT/s  Up to 395.8 GT/s
ROPs 64 64 64 64 64
Peak Pixel Fill-Rate Up to 99.8 GP/s Up to 110.4 GP/s Up to 121.9 GP/s Up to 94.0 GP/s Up to 98.9 GP/s
Memory Bandwidth 288 GB/s 448 GB/s 448 GB/s 410 GB/s 483.8 GB/s
Memory Interface  192-bit 256-bit 256-bit 2048-bit 2048-bit
Board Power  150W 185W 225W 210W 295W


Original BIOS spec, left, compared with updated BIOS spec, right.

As with most 5600 XTs on the market, the Phantom Gaming D3 has received a BIOS update tweaking its core and memory speeds. Initially it looked like ASRock was going to follow MSI's stance and not update the memory speed on its cards, however just this week a new public BIOS landed pushing memory speeds to 14Gbps. This was the BIOS used for all testing and I had no issues with system stability while testing the card.

For the rest of the spec, 5600 XT uses the same 36 Compute Unit, Navi 10 GPU as the RX 5700, meaning a total of 2304 stream processors. Even with the updated BIOS, however, memory bandwidth for the RX 5600 XT is still less than the RX 5700 (336GB/s compared to 448GB/s) as the 5600 XT uses a 192-bit memory interface, compared to the 256-bit interface used by the 5700.

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