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MSI Radeon RX 6600 XT GAMING X 8G graphics card, dual-fan cooler with silver and black shroud, metal backplate visible

MSI

MSI Radeon RX 6600 XT GAMING X 8G graphics card

SKU CH-1SZ6-0EQ4J

Delivers 8GB GDDR6 memory at 16000MHz for 7680 x 4320 resolution over a 128-bit interface

  • Memory capacity8 GB
  • Interface typePCI Express 4.0
  • Highest resolution7680 × 4320
  • Type of memoryGDDR6
  • Core frequency16000 MHz
  • Chipset makerAMD
  • 8 GB GDDR6 memory enables smooth 1440p gaming
  • 16000 MHz memory frequency delivers high bandwidth for textures
  • 128-bit memory interface balances speed and power efficiency
  • PCI Express 4.0 interface provides fast data throughput to the CPU
  • 7680 x 4320 maximum resolution supports ultra-high-definition displays

MSI Radeon RX 6600 XT GAMING X 8G

The MSI Radeon RX 6600 XT GAMING X 8G is a graphics card built around the Radeon chipset with 8GB of GDDR6 memory. It targets 1080p and 1440p gaming workloads where high frame rates matter. The card connects through a PCI Express 4.0 interface and draws auxiliary power from a single 8pin connector. Core and memory clocks run at 16000MHz across a 128bit bus.

Build integration and system requirements

A motherboard with a PCI Express 4.0 slot provides the data path, while the 8pin power connector demands a supply with sufficient spare wattage. The 128bit memory interface keeps the PCB compact, easing fitment in smaller chassis. Outputs drive displays up to 7680 x 4320 resolution, freeing the builder to choose high-refresh panels or multi-monitor arrays without extra adapters.

Sustained-load behaviour

Under continuous load the 8GB GDDR6 buffer and 16000MHz clock maintain stable throughput for extended sessions. The 128bit bus width defines the peak bandwidth ceiling, so prolonged compute or texture streaming stays within that fixed envelope. Thermal output scales with the power drawn through the single 8pin connector, making case airflow the primary factor in long-term clock stability.

How it compares

Measured against everything we stock in Desktop GPUs & Video Cards, at today’s prices. Recalculated every night.

Price $287.99
Cheaper than about 58% of the 4,285 comparable items (median $354.99).
Memory capacity 8 GB
Typical for this category: the median of 3,563 items is 8 GB.
Core frequency 16000 MHz
Higher than about 90% of the 1,624 comparable items (median 1.82 GHz).

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Specifications

Product
Brand nameMSI
Model nameMSI Radeon RX 6600 XT GAMING X 8G
Memory
Type of memoryGDDR6
Display
Highest resolution7680 × 4320
Graphics
Memory capacity8 GB
Core frequency16000 MHz
Chipset makerAMD
Memory bus width128bit
Ports & slots
Interface typePCI Express 4.0
Power
Power input connector8pin

Questions about this item

How long can the 16000 MHz memory clock hold under heavy load before thermal throttling?

The 16000 MHz memory clock is the rated specification; sustained performance will depend on case airflow and the card's dual-fan cooling design maintaining safe temperatures.

What are the noise and heat levels when the card runs at full load all day?

The GAMING X cooler uses two TORX 4.0 fans and a large heatsink to keep the Radeon RX 6600 XT quiet and cool during extended sessions, with fan curves that ramp only when needed.

What power supply connector must my PSU already have for this card to work?

Your power supply needs one free 8-pin PCIe connector to deliver the required power for the Radeon RX 6600 XT GAMING X 8G.

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