AMD Radeon RX 6600

AMD · Radeon

Radeon RX 6600

Released October 2021

A 2021 RDNA 2 graphics card for 1080p gaming, with 8 GB of GDDR6 and 32 MB of Infinity Cache.

Memory
8 GB
Shaders
1,792
Boost clock
2,491 MHz
Bandwidth
224 GB/s
Power
132 W

What reviewers say

Reviewers found efficient 1080p performance, with less convincing 1440p and ray tracing results and disappointing shortage-era pricing. PC Gamer tested PowerColor Fighter, TechRadar Gigabyte Eagle and PCWorld XFX Swft 210. TechRadar found closer RTX 3060 parity than the others; its comparison used a different test platform. Cooling findings depend on the partner board.

From pcgamer.com, techradar.com and pcworld.com

Performance

Chip maker
AMD
Architecture
RDNA 2
Shader cores
1,792
Boost clock
2,491 MHz
Architecture
AMD GPU specification baseline with 28 compute units, 64 ROPs and 112 texture units. Photo shows MSI's stock-clock MECH 2X 8G partner card.
Ray tracing
28 ray accelerators
Upscaling and frame generation
AMD FidelityFX Super Resolution
Base clock
AMD publishes a 2,044 MHz game clock; the 2,491 MHz boost is the maximum frequency for burst workloads
Cache
32 MB Infinity Cache

Memory

Video memory
8 GB GDDR6
Memory bus
128-bit
Memory bandwidth
224 GB/s
Memory detail
14 Gbps GDDR6; 224 GB/s bandwidth

Connections and power

Board power
132 W
Interface
PCIe 4.0
Display outputs
Pictured MSI MECH 2X has 3 × DisplayPort 1.4 and 1 × HDMI 2.1; AMD specifies DisplayPort 1.4a and HDMI 2.1 with variable refresh rate and FRL
Maximum resolution
7680 × 4320 and up to four displays on MSI's specification
Power connector
1 × 8-pin
Recommended power supply
AMD specifies 450 W; MSI recommends 500 W for its pictured MECH 2X. Requirements depend on the rest of the system.
Slot width
Partner card designs vary; MSI MECH 2X is 46 mm thick
Size (reference card)
No retail AMD reference card; pictured MSI MECH 2X is 235 × 125 × 46 mm and 710 g
Video encode and decode
AMD publishes AV1 decoding; MSI confirms PCIe 4.0 x8

Pros and cons

Pros

  • 8 GB of dedicated GDDR6 memory
  • Published 132 W typical board power
  • Hardware ray tracing and AV1 decoding

Cons

  • 128-bit memory interface
  • PCIe connection uses eight lanes
  • Partner dimensions and power requirements vary

Closest rivals

Model
MemoryShadersBoost clockBandwidthPowerReleased
8 GB or 6 GB2,560 or 2,3041,780 MHz or 1,470 MHz224 GB/s or –130 W or 70 WJan 2022
8 GB2,1761,650 MHz448 GB/s175 WJul 2019
6 GB1,5361,770 MHz–120 WFeb 2019

Sources

  1. amd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.html
  2. ir.amd.com/news-events/press-releases/detail/1023/amd-radeon-rx-6600-graphics-c…
  3. storage-asset.msi.com/datasheet/vga/global/Radeon-RX-6600-MECH-2X-8G.pdf

Photo: storage-asset.msi.com

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