Home » 2.6GHz OC, PG3X cooler ASROCK RX 6600 XT Phantom Gaming D-HKEPC Hardware

2.6GHz OC, PG3X cooler ASROCK RX 6600 XT Phantom Gaming D-HKEPC Hardware

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ASROCK RX 6600 XT Phantom Gaming D 8GB OC graphics card

▲ ASROCK Radeon RX 6600 XT Phantom Gaming D 8GB OC

ASROCK launched the new Radeon RX 6600 XT Phantom Gaming D 8GB OC graphics card. The appearance design is obviously higher than the previous generation. It adopts 2.4 Slot, 9cm three-fan heatsink, and the giant aluminum fin heatsink is for AMD Navi 23 XT chip. It’s completely Overkill, and it won’t overheat and crash when you start a live broadcast. The OC version will increase the GPU Boost Clock to 2.607GHz, and the game will go to the next level. If you want to find a RX 6600 XT with first-class heat dissipation and powerful performance , This demon card would be a good choice.

RX 6600 XT

2.4 Slot, three-fan radiator design

Radeon RX 6600 XT Phantom Gaming D 80GB OC graphics card size is 305mm x 131mm x 48mm. Compared with the previous generation 5600 XT, the largest radiator is taller, which further increases the size of the fan and the area of ​​the cooling fins. The radiator is made of solid black. As the main color, the metal drawing effect is added, and the red three-dimensional line is added for embellishment. The Phantom Gaming ARGB lighting effect LOGO is added to the top, and the central fan is added to the ARGB lighting effect. The texture is completely unlike a mainstream product.

10-phase Super Alloy power supply material

RX 6600 XT

▲ 2oz Copper PCB, public version design 10-phase power supply

After disassembling the heat sink, you can see that Radeon RX 6600 XT Phantom Gaming D 8GB OC adopts AMD public board PCB design, uses 10-phase Super Alloy power supply, GPU 6 phases, SOC 2 phases, GDDR6 1 phase plus VDDCI 1 phase, TGP The limit is 160W, and an external PCIe 8 Pin power supply is required. It is recommended to use a power supply above 650W.

RX 6600 XTRX 6600 XT

▲ 90A inductance + 50A Dr.MOS ▲ 1 set of PCIe 8 Pin external power supply

In order to improve the stability and overclocking capability of the graphics card, the factory uses the highest quality 2oz Copper PCB, the MOSFET uses SiC654A integrated Power Stage chip, a single chip provides up to 50A power supply and built-in temperature and current detection, using Yubang 5K hours Capacitor, GPU power supply upgrade 90A fully enclosed metal inductor, power supply materials are quite solid.

AMD Navi 23 XT graphics core

AMD Radeon RX 6600 XT graphics card uses the code-named “Navi 23 XT” graphics core, the chip number is “215-1300000006”, adopts TSMC 7nm FinFET (N7) process, built-in 1.11 billion transistors, Die Size is about 237mm², has 32 Compute Units (CU), built-in 2,048 SP, 128 Texture Units and 64 ROP arithmetic units, the highest Pixel Fillrate is 165.7 GP/s, Texture Fillrate is 331.4 GT/s, and PCIe 4.0 x8 interface is supported.

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RX 6600 XT

▲ AMD Navi 23 XT graphics core

In terms of core clock, AMD Radeon RX 6600 XT’s GPU core clock is 1,968MHz Base Clock, 2,395MHz Game Clock, up to 2,589MHz Boost Clock, and the maximum TDP of the entire card is about 160W. An external 8 Pin interface is required. It is recommended Use a 550W or above power supply, but send the OC version of the ASROCK Radeon RX 6600 XT Phantom Gaming D graphics card for testing. The core clock is preset to 2,064MHz Base Clock, 2,428MHz Game Clock, 2,607MHz Boost Clock, and the performance is relatively common. The version is higher.

128bit interface, 8GB GDDR6 memory

RX 6600 XT

▲ SAMSUNG GDDR6 512M x32 (16Gbps) particles

In terms of memory, the AMD Radeon RX 6600 XT graphics card is reduced to a 128bit memory interface. The memory capacity is 8GB, the speed is 16Gbps, and the real memory bandwidth is only 256Gbps. However, because AMD has added 32MB Infinity Cache to the GPU, other The effective memory bandwidth is equal to 416GB/s, which is higher than 192bit GDDR6.

2.4 Slot, three-fan radiator

RX 6600 XT

▲ 2.4 Slot giant radiator

As for the heat sink, the Radeon RX 6600 XT Phantom Gaming D 8GB OC adopts a 2.4 Slot, three-fan design, and adds a large-area all-copper bottom with three 6mm all-copper heat pipes running through all fins, so that the heat can be transferred to the entire fin more quickly and evenly. For the radiator, the aluminum fin cutting with V-shaped cut corners and V-shaped air holes is added to reduce the return air problem, which can guide the airflow through the fins more regularly and reduce wind resistance.

RX 6600 XTRX 6600 XT

▲ 4 6mm copper pairs of heat conduction pipes ▲ 9cm striped axial fan

Using 11-blade striped axial fan, by optimizing the stripe structure on each fan blade and the polished surface on the bottom, ASRock’s exclusive striped axial fan can provide greater air flow to enhance the heat dissipation effect.

RX 6600 XT

The graphics card incorporates a metal backplane design. In addition to enhancing the rigidity of the PCB and avoiding bending damage to the circuit board, it also assists in the heat dissipation of computing components, reduces operating temperature and improves product stability. The hot air discharged by the fans can reduce the heat accumulation in the entire radiator and further enhance the heat dissipation performance.

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Support HDMI 2.1, DisplayPort 1.4 DSC output

RX 6600 XT

AMD Radeon RX 6600 XT provides 3 DisplayPort 1.4 DSC ports and 1 HDMI 2.1 port. Either DisplayPort or HDMI interface can provide 8K @ 60Hz resolution output, which is 4 times the bandwidth requirement of 4K pixels and supports VEGA DSC 1.2 technology provides a higher compression lossless display function, and a single card can provide up to 2 8K @ 60Hz display outputs, or use 2 sets of DisplayPort connections to provide 1 8K @120Hz output.

Support PolyChrome SYNC lighting effect

RX 6600 XT

ASROCK Radeon RX 6600 XT Phantom Gaming D 8GB OC has better lighting effects than the previous generation. The central fan uses light guide blades with 8 RGB LED particles to support ARGB lighting effect control.

RX 6600 XT

The ARGB light guide panel with the Phantom Gaming logo is added to the top. Players can control the lighting effects through the PolyChrome Sync tool software to create a synchronized lighting effect without any violation and sense of harmony.

RX 6600 XT

With PolyChrome lighting effect software, it can be synchronized with ASROCK motherboards and peripherals that support PolyChrome technology. It supports 15 lighting effect modes, adjustable lighting speed and dimming functions, and users can build a set of magic boards.

Support OC Tweaker utility

RX 6600 XT

For advanced computer players, ASROCK provides the OC Tweaker tool for fine-tuning the graphics card, providing Default, Silent Mode and OC Mode. Users can choose according to their needs. Users can also manually adjust the GPU/GDDR6 clock and fan speed. , Power Limit and so on, the function is quite powerful.

Performance test:

CPU︰Intel Core i9-11900K

MB︰ASUS Maximus XIII Extreme Glacial

RAM︰G.SKILL TridentX DDR4-3600 CL16 32GB Kit

VGA : ASROCK Radeon RX 6600 XT Phantom Gaming D 8GB OC

SSD:CORSAIR FORCE MP600 CORE 2TB SSD

OS︰Windows 10 Professional 20H2

RX 6600 XTRX 6600 XT

ASROCK Radeon RX 6600 XT Phantom Gaming D 8GB OC has a Base Clock of 2,064MHz, a Gaming Clock of 2428MHz, and a maximum Boost Clock of 2,607MHz, which is a 3-5% improvement over the official public version specifications.

Thermal test:

RX 6600 XT

In terms of heat dissipation, the test was conducted at a room temperature of approximately 25°C. After the graphics card was left idle for 30 minutes, the GPU temperature remained at 45°C, and the fan remained in the “0db Silent” mode without rotating. Using Furmark for the 3D computing load test, after 30 minutes of full GPU load, the fan automatically adjusted to 33% speed and about 1,101 RPM, maintaining the highest temperature not exceeding 62°C under low noise and noise levels, and the heat dissipation performance is quite satisfactory.

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3DMark test:

RX 6600 XT

RX 6600 XT

RX 6600 XT

RX 6600 XT

RX 6600 XT

3DMark DXR test:

RX 6600 XT

RX 6600 XT

The Riftbreaker FSR test:

RX 6600 XT

▲ When FSR is not activated, Low 1% is 102.02 FPS, and the average is 131.28 FPS

RX 6600 XT

▲ After the FSR Ultra Quality mode is activated, Low 1% is 146.67 FPS, and the average is 184.88 FPS

RX 6600 XT

▲ After the FSR Quality mode is activated, Low 1% is 175.98 FPS, and the average is 219.91 FPS

RX 6600 XT

▲ After the FSR Balance mode is activated, Low 1% is 207.12 FPS, and the average is 246.63 FPS

RX 6600 XT

▲ After the FSR Performance mode is activated, Low 1% is 224.32 FPS, and the average is 278.27 FPS

Currently, there are only 13 games that support AMD FSR technology, including The Riftbreaker, which averages 127.50 FPS when FSR technology is not activated. However, when FSR technology is activated, performance can be seen to increase significantly, providing Ultra Quality, There are 4 different modes of Quality, Balance and Performance. Quality and Ultra Quality are selected. It is not easy to notice the picture degradation during execution. There will be obvious picture quality differences when using Performance, but the performance has been greatly improved from 127.50 FPS to 278.27 FPS. superb.

ASROCK RX 6600 XT Phantom Gaming D 8GB OC graphics card

Price: HK$3,999

Enquiry: QC Supplies (+852 3853-5353)

Editor’s comment:

Compared with the previous generation, ASROCK Radeon RX 6600 XT Phantom Gaming D 8GB OC graphics card has been significantly improved, both in appearance, heat dissipation, materials and lighting effects have been upgraded, especially the TGP settings are more aggressive, making its performance higher than the public board 8~10%, the performance is higher than RTX 3060, but the weakness must be the Ray Tracing ability. QC Supplies is currently priced at HK$3,999. Because of its outstanding mining ability, I believe it will definitely increase the price after the first batch is sold out.

Text: John Lam/Test Center

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