AMD Radeon RX 6600
The AMD Radeon RX 6600 is a graphics card released on October 13, 2021, built on the RDNA 2 architecture. It has 1,792 shading units, 8 GB of GDDR6 memory on a 128-bit bus, 224.0 GB/s of memory bandwidth, a boost clock of 2.49 GHz and a 132 W board power rating. It scores 15,054 in the PassMark G3D benchmark. It supports DirectX 12 and OpenGL 4.6.
Depth: 54 recorded fields, 18 features, 5 PassMark workloads
Specification data last verified October 1, 2026 against PassMark Videocard Benchmark, AMD.com Specifications and Wikipedia GPU list tables (wikigrid-2026-09). Coverage: 10 of 10 tracked specifications recorded.
Performance
The AMD Radeon RX 6600 scores 15,054 in the PassMark G3D benchmark, higher than 93.8% of the 2,658 GPUs benchmarked (PassMark rank #172), measured across 15,746 submitted results. Its PassMark G2D score is 896.
PassMark workload tests
In the PassMark workload tests the AMD Radeon RX 6600 averages DirectX 9 200 fps, DirectX 10 93 fps, DirectX 11 153 fps, DirectX 12 51 fps and GPU Compute 6,443 ops/s, across 15,746 submitted results. Frames per second are PassMark test-scene rates, not game frame rates.
Theoretical throughput
AMD states a peak of FP32 (single precision) 8.93 TFLOPS, FP16 (half precision) 17.86 TFLOPS, Pixel fill rate 159.4 GPixel/s and Texture fill rate 279 GTexel/s for the AMD Radeon RX 6600.
As stated by PassMark
PassMark's own listing for the AMD Radeon RX 6600 states the PCIe 4.0 x8 interface, up to 8 GB of memory, a core clock of 1626 MHz, DirectX 12 and OpenGL 4.6, first benchmarked on 2021-10-16. These are PassMark's figures, shown separately from the specification tables above.
Not to be confused with
This page covers the AMD Radeon RX 6600 specifically. It is a different product from AMD Radeon RX 6600 LE, AMD Radeon RX 6600 XT, AMD Radeon RX 6600M, AMD Radeon RX 6600S, which have their own specifications. Check the exact model name before comparing figures.
Graphics processor
The AMD Radeon RX 6600 is based on the RDNA 2 architecture, uses the Navi 23 graphics processor, contains 11,060 million transistors and has a die size of 237 mm².
Shader configuration
The AMD Radeon RX 6600 has 1,792 shading units, 28 compute units, 112 texture mapping units, 64 render output units and 28 ray tracing cores.
The AMD Radeon RX 6600 does not use XMX engines; those are specific to Intel Arc graphics.
Clock speeds
The AMD Radeon RX 6600 runs at a base clock of 1.63 GHz, boosts to 2.49 GHz and has a game clock of 2.04 GHz.
Memory
The AMD Radeon RX 6600 is equipped with 8 GB of GDDR6 memory, uses a 128-bit memory bus and delivers 224.0 GB/s of memory bandwidth.
Board and power
The AMD Radeon RX 6600 has a board power rating of 132 W, a total board power of 132 W, a power supply of at least 450 W is recommended, power is supplied through 1x8-Pin and it connects over PCIe 4.0 x8.
Market
The AMD Radeon RX 6600 was released on October 13, 2021 and launched at a price of $329.
Benchmarks
Graphics and compute APIs
The AMD Radeon RX 6600 supports DirectX 12 and OpenGL 4.6.
CUDA is an NVIDIA technology and does not apply to the AMD Radeon RX 6600. Feex has no recorded Vulkan version for the AMD Radeon RX 6600. Feex has no recorded OpenCL version for the AMD Radeon RX 6600.
Features
The AMD Radeon RX 6600 has 11 supported features recorded outside the media engine. A feature that no source mentions is shown as not listed, never as unsupported.
Rendering
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Supported: AMD FidelityFX Super ResolutionAMD's upscaling technology that renders at a lower resolution and scales up to raise frame rates in supported games.
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Supported: Hardware ray tracingDedicated GPU hardware that speeds up ray-traced lighting, reflections and shadows in supported games and apps.Ray tracing units: 28
Not listed (1)
No source Feex holds states whether the AMD Radeon RX 6600 supports DirectX 12 Ultimate. That is silence, not a statement that they are unsupported.
The AMD Radeon RX 6600 supports AMD FidelityFX Super Resolution and Hardware ray tracing under Rendering.
Display features
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Supported: AMD FreeSyncSupport for AMD's variable refresh rate technology, which syncs compatible displays to the GPU to reduce tearing and stutter.
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Supported: HDMI 4K outputThe vendor states the GPU can drive a 4K display over HDMI.
Not listed (6)
No source Feex holds states whether the AMD Radeon RX 6600 supports Stereoscopic 3D, 10-bit color output, VR ready, 8K display output, HDR output and 12-bit color output. That is silence, not a statement that they are unsupported.
The AMD Radeon RX 6600 supports AMD FreeSync and HDMI 4K output under Display features.
Platform
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Supported: Resizable BAR AMD Smart Access MemoryLets the CPU access the GPU's full video memory at once, which can improve performance in some games on supporting systems.
Not listed (3)
No source Feex holds states whether the AMD Radeon RX 6600 supports Radeon Dual Graphics, Switchable graphics and AMD SmartShift. That is silence, not a statement that they are unsupported.
The AMD Radeon RX 6600 supports Resizable BAR (AMD Smart Access Memory) under Platform.
Software and drivers
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Supported: Radeon Anti-LagAMD's latency-reduction feature that lowers the delay between input and what you see in supported games.
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Supported: Enhanced SyncAMD driver feature that reduces screen tearing and stutter on displays without variable refresh rate.
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Supported: Image sharpeningA driver-level sharpening filter that increases perceived detail with little performance cost.
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Supported: Radeon BoostAMD driver feature that briefly lowers resolution during fast motion to raise frame rates.
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Supported: Radeon ChillAMD driver feature that lowers frame rate when there is little on-screen action to cut power use and heat.
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Supported: Radeon Super ResolutionAMD's driver-level upscaling that can raise frame rates in many games without game support.
Not listed (2)
No source Feex holds states whether the AMD Radeon RX 6600 supports Radeon ReLive and AMD Fluid Motion Frames. That is silence, not a statement that they are unsupported.
The AMD Radeon RX 6600 supports Radeon Anti-Lag, Enhanced Sync, Image sharpening, Radeon Boost, Radeon Chill and Radeon Super Resolution under Software and drivers.
Media engine
The AMD Radeon RX 6600 provides hardware encode for H.264 (AVC) and HEVC (H.265) and hardware decode for H.264 (AVC), HEVC (H.265) and AV1.
| Codec | Encode | Decode |
|---|---|---|
| H.264 (AVC)4K H.264: encode supported, decode supported | Supported | Supported |
| HEVC (H.265) | Supported | Supported |
| AV1 | Not stated by the vendor | Supported |
supported explicitly not supported not stated by the vendor
Not listed: VP9. No source Feex holds states whether the AMD Radeon RX 6600 supports this codec; that is silence, not a statement that it is unsupported.
Display outputs
The AMD Radeon RX 6600 offers outputs DisplayPort 1.4a, HDMI 2.1 VRR and FRL, HDMI 2.1 and DisplayPort 1.4a.
Naming and aliases
The AMD Radeon RX 6600 is also known by other names: PassMark also lists it as Radeon RX 6600 and AMD Radeon RX 6600 (RADV NAVI23).
Frequently asked questions
How much VRAM does the AMD Radeon RX 6600 have?
The AMD Radeon RX 6600 has 8 GB of GDDR6 memory on a 128-bit bus. Its memory bandwidth is 224.0 GB/s.
How much power does the AMD Radeon RX 6600 use and what power supply does it need?
The AMD Radeon RX 6600 has a board power rating of 132 W. Feex records a suggested power supply of at least 450 W. Power connectors: 1x8-Pin.
How fast is the AMD Radeon RX 6600?
The AMD Radeon RX 6600 scores 15,054 in the PassMark G3D benchmark, higher than 93.8% of the 2,658 GPUs benchmarked. Its PassMark rank is #172. In the PassMark DirectX 12 test it averages 51 fps.
Does the AMD Radeon RX 6600 support ray tracing?
Yes. The AMD Radeon RX 6600 has hardware ray tracing with 28 ray tracing cores.
What bus interface does the AMD Radeon RX 6600 use?
The AMD Radeon RX 6600 connects over PCIe 4.0 x8.
When was the AMD Radeon RX 6600 released and how much did it cost at launch?
The AMD Radeon RX 6600 was released on October 13, 2021 and launched at a price of $329.
Similar performance
Compare the AMD Radeon RX 6600
Side-by-side specification comparisons against cards in the same performance band.