ASRock Radeon RX 6600 XT Phantom Gaming D Review - Best Overclocker, Best Cooler 37

ASRock Radeon RX 6600 XT Phantom Gaming D Review - Best Overclocker, Best Cooler



ASRock Logo

ASRock Radeon RX 6600 XT Phantom Gaming D is the company's top custom-design RX 6600 XT offering. Debuted last week, the RX 6600 XT is designed to bring the full DirectX 12 Ultimate-compliant feature set of the AMD RDNA2 architecture to the vast majority of gamers who still play at Full HD (1080p) resolution. It's designed to offer AAA gameplay at high-to-maximum settings, as well as esports gameplay at high frame rates. Real-time raytracing gameplay at 1080p is also possible, and you can leverage FidelityFX Supersampling (FSR) to improve performance with minimal costs to image quality.

The RX 6600 XT debuts the tiny new 7 nm Navi 23 silicon to the desktop space, and maxes it out. All 2,048 stream processors spread across 32 RDNA2 compute units, 32 Ray Accelerators, 128 TMUs, and 64 ROPs are enabled. 8 GB is the standard memory size for the RX 6600 XT. This is, however, a 128-bit wide GDDR6 memory bus. AMD attempted to bolster this by opting for faster 16 Gbps memory chips and deploying 32 MB of Infinity Cache on-die memory, which cushions the memory sub-system.

The ASRock RX 6600 XT Phantom Gaming D is designed to not only get the most performance out of the RX 6600 XT, but also look great when installed in your case, like something from a segment above. Aesthetic touches include a two-tone metal cooler shroud with good ventilation for the aluminium fin-stack heatsink underneath, RGB LED illumination, and a trio of large fans ventilating it; and the fact that the PCB is only two-thirds the length of the card, which means airflow from the third fan flows through the card and out vents on the backplate. ASRock has also given the RX 6600 XT a factory overclock. The company is pricing the card at $500, $120 above AMD MSRP. At the current market conditions, a more realistic price is around $680.

Radeon RX 6600 XT Market Segment Analysis
RX 5600 XT$5002304641375 MHz1560 MHz1500 MHzNavi 1010300M6 GB, GDDR6, 192-bit
RTX 2060$5001920481365 MHz1680 MHz1750 MHzTU10610800M6 GB, GDDR6, 192-bit
RX 5700$7502304641465 MHz1625 MHz1750 MHzNavi 1010300M8 GB, GDDR6, 256-bit
RTX 2060 Super$6502176641470 MHz1650 MHz1750 MHzTU10610800M8 GB, GDDR6, 256-bit
RX Vega 64$600 4096641247 MHz1546 MHz953 MHzVega 1012500M8 GB, HBM2, 2048-bit
RX 5700 XT$8002560641605 MHz1755 MHz1750 MHzNavi 1010300M8 GB, GDDR6, 256-bit
RTX 2070$6502304641410 MHz1620 MHz1750 MHzTU10610800M8 GB, GDDR6, 256-bit
RTX 3060$5503584481320 MHz1777 MHz1875 MHzGA10613250M12 GB, GDDR6, 192-bit
RTX 2070 Super$7002560641605 MHz1770 MHz1750 MHzTU10413600M8 GB, GDDR6, 256-bit
Radeon VII$8003840641400 MHz1800 MHz1000 MHzVega 2013230M16 GB, HBM2, 4096-bit
RX 6600 XT$650
MSRP: $380
2048642359 MHz2589 MHz2000 MHzNavi 2311060M8 GB, GDDR6, 128-bit
ASRock RX 6600 XT
Phantom Gaming
MSRP: $500
2048642428 MHz2607 MHz2000 MHzNavi 2311060M8 GB, GDDR6, 128-bit
RTX 2080$7502944641515 MHz1710 MHz1750 MHzTU10413600M8 GB, GDDR6, 256-bit
RTX 2080 Super$8003072641650 MHz1815 MHz1940 MHzTU10413600M8 GB, GDDR6, 256-bit
RTX 3060 Ti$7004864801410 MHz1665 MHz1750 MHzGA10417400M8 GB, GDDR6, 256-bit
RX 6700 XT$770
2560642424 MHz2581 MHz2000 MHzNavi 2217200M12 GB, GDDR6, 192-bit
RTX 2080 Ti$11004352881350 MHz1545 MHz1750 MHzTU10218600M11 GB, GDDR6, 352-bit
RTX 3070$10005888961500 MHz1725 MHz1750 MHzGA10417400M8 GB, GDDR6, 256-bit
RTX 3070 Ti$11006144961575 MHz1770 MHz1188 MHzGA10417400M8 GB, GDDR6X, 256-bit
RX 6800$13003840961815 MHz2105 MHz2000 MHzNavi 2126800M16 GB, GDDR6, 256-bit


Package Front
Package Back

The Card

Graphics Card Front
Graphics Card Back
Graphics Card Front Angled

The ASRock RX 6600 XT Phantom Gaming D uses a mostly black design with red highlights. On the back, you'll find a high-quality metal backplate with cutouts to let some airflow through.

Graphics Card Dimensions

Dimensions of the card are 30.0 x 13.0 cm, and it weighs 899 g.

Graphics Card Height
Graphics Card Back Angled

Installation requires three slots in your system. The card is only slightly thicker than the PCIe slot cover, but that still makes it a triple-slot card. That said, it should fit just fine if you have a very small card next to it, like a tiny sound card.

Monitor Outputs, Display Connectors

Display connectivity includes three standard DisplayPort 1.4 and one HDMI 2.1. Display and media capabilities are identical to the rest of the RDNA2 family.

Graphics Card Power Plugs

The card has one 8-pin power input. This configuration is rated for up to 225 W of power draw.

Multi-GPU Area

The AMD Radeon RX 6600 series doesn't support multi-GPU.


Graphics Card Cooler Front
Graphics Card Cooler Back

The heatsink provides cooling not only for the GPU, but the VRM circuitry and memory chips, too. The thermal pads for the memory are 1.0 mm thick, and those on the VRM are 1.5 mm thick.

The backplate is made out of metal and protects the card against damage during installation and handling. The thermal pads on the backplate are 2.5 mm thick.

High-resolution PCB Pictures

These pictures are for the convenience of volt modders and people who would like to see all the finer details on the PCB. Feel free to link back to us and use these in your articles, videos or forum posts.

Graphics Card Teardown PCB Front
Graphics Card Teardown PCB Back

High-res versions are also available (front, back).

Our Patreon Silver Supporters can read articles in single-page format.
Discuss(37 Comments)
Jul 4th, 2022 11:25 EDT change timezone

New Forum Posts

Popular Reviews

Controversial News Posts