AMD · Radeon RX

AMD Radeon RX 6600S

The AMD Radeon RX 6600S is a graphics card released on January 4, 2022. It has 1,792 shading units, 4 GB of GDDR6 memory on a 128-bit bus, 224.0 GB/s of memory bandwidth, a boost clock of 1.88 GHz and a 80 W board power rating. It scores 13,569 in the PassMark G3D benchmark. It supports DirectX 12_2 and OpenGL 4.6.

8/10 key specs recorded · 49 facts

Depth: 38 recorded fields, 10 features, 5 PassMark workloads

Specification data last verified August 11, 2026 against PassMark Videocard Benchmark and AMD.com Specifications. Coverage: 8 of 10 tracked specifications recorded.

PassMark Videocard Benchmark AMD.com Specifications PassMark Videocard Benchmark

Shading units

1,792cores

28 compute units

Memory

4 GB

GDDR6 · 128-bit

Boost clock

n/a

Board power

80 W

Performance

The AMD Radeon RX 6600S scores 13,569 in the PassMark G3D benchmark, higher than 92.4% of the 2,658 GPUs benchmarked (PassMark rank #211), measured across 11 submitted results. Its PassMark G2D score is 655.

PassMark G3D Mark

13,569

Rank #211
Faster than 92.4% of 2,658 GPUs
11 samples

0relative to the fastest GPU on record (41,928)

PassMark workload tests

DirectX 9 192 fps

reference: fastest recorded 526 fps · faster than 89.6% of 1,675 GPUs

DirectX 10 80 fps

reference: fastest recorded 231 fps · faster than 86.5% of 1,602 GPUs

DirectX 11 121 fps

reference: fastest recorded 362 fps · faster than 87.4% of 1,430 GPUs

DirectX 12 58 fps

reference: fastest recorded 213 fps · faster than 84.1% of 1,274 GPUs

GPU Compute 4,886 ops/s

reference: fastest recorded 26,591 ops/s · faster than 82.7% of 1,447 GPUs

Averages of PassMark PerformanceTest submissions; frames/sec are PassMark test-scene rates, not game FPS. Tests PassMark does not report for this card are omitted. PassMark listing

In the PassMark workload tests the AMD Radeon RX 6600S averages DirectX 9 192 fps, DirectX 10 80 fps, DirectX 11 121 fps, DirectX 12 58 fps and GPU Compute 4,886 ops/s, across 11 submitted results. Frames per second are PassMark test-scene rates, not game frame rates.

Theoretical throughput

FP32 (single precision) 7.81 TFLOPS stated by AMD

FP16 (half precision) 15.63 TFLOPS stated by AMD

Texture fill rate 244.2 GTexel/s stated by AMD

AMD states a peak of FP32 (single precision) 7.81 TFLOPS, FP16 (half precision) 15.63 TFLOPS and Texture fill rate 244.2 GTexel/s for the AMD Radeon RX 6600S.

As stated by PassMark

Category Mobile

Bus interface PCIe 4.0 x8

Max memory 4 GB

Core clock 1700 MHz

Memory clock 1750 MHz

DirectX 12_2

OpenGL 4.6

Max TDP 80 W

First benchmarked 2023-02-25

Samples 11

PassMark listing (collected 2026-10-01)

PassMark's own listing for the AMD Radeon RX 6600S states the PCIe 4.0 x8 interface, up to 4 GB of memory, a core clock of 1700 MHz, DirectX 12_2 and OpenGL 4.6, first benchmarked on 2023-02-25. These are PassMark's figures, shown separately from the specification tables above.

Shader configuration

Shading units 1,792

Compute units 28

Streaming multiprocessors Not recorded

Execution units Not recorded

Texture units (TMUs) Not recorded

Render output units (ROPs) Not recorded

Ray tracing cores 28

Tensor / AI cores Not recorded

XMX engines Not recorded

Infinity cache Not recorded

The AMD Radeon RX 6600S has 1,792 shading units, 28 compute units and 28 ray tracing cores.

The AMD Radeon RX 6600S does not use XMX engines; those are specific to Intel Arc graphics.

Clock speeds

Base clock Not recorded

Boost clock Not recorded

Game clock 1.88 GHz

Memory clock Not recorded

Effective memory clock Not recorded

The AMD Radeon RX 6600S has a game clock of 1.88 GHz.

Memory

Size 4 GB

Type GDDR6

Bus width 128-bit

Bandwidth 224.0 GB/s

The AMD Radeon RX 6600S is equipped with 4 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 6600S has a board power rating of 80 W and it connects over PCIe 4.0 x8.

Board power (TDP) 80 W

Total board power Not recorded

Suggested PSU Not recorded

Power connectors Not recorded

Slot width Not recorded

Length Not recorded

Width Not recorded

Height Not recorded

Cooler Not recorded

Max temperature Not recorded

Bus interface PCIe 4.0 x8

Market

Launched January 4, 2022

Launch price Not recorded

Status Not recorded

Form factor Not recorded

Segment Laptop

Series Radeon RX

The AMD Radeon RX 6600S was released on January 4, 2022.

Benchmarks

PassMark G3D 13,569

PassMark G2D 655

Rank #211

Samples 11

Graphics and compute APIs

The AMD Radeon RX 6600S supports DirectX 12_2 and OpenGL 4.6.

DirectX 12_2 (stated by PassMark)

OpenGL 4.6 (stated by PassMark)

CUDA is an NVIDIA technology and does not apply to the AMD Radeon RX 6600S. Feex has no recorded Vulkan version for the AMD Radeon RX 6600S. Feex has no recorded OpenCL version for the AMD Radeon RX 6600S.

Features

The AMD Radeon RX 6600S has 3 supported features recorded outside the media engine. A feature that no source mentions is shown as not listed, never as unsupported.

Rendering

Supported: Hardware ray tracing

Dedicated GPU hardware that speeds up ray-traced lighting, reflections and shadows in supported games and apps.

Ray tracing units: 28

Not listed (2)

No source Feex holds states whether the AMD Radeon RX 6600S supports DirectX 12 Ultimate and AMD FidelityFX Super Resolution. That is silence, not a statement that they are unsupported.

The AMD Radeon RX 6600S supports Hardware ray tracing under Rendering.

Platform

Supported: Resizable BAR AMD Smart Access Memory

Lets the CPU access the GPU's full video memory at once, which can improve performance in some games on supporting systems.
Supported: AMD SmartShift

Shifts power between an AMD CPU and GPU in a laptop depending on which one needs it.

Not listed (2)

No source Feex holds states whether the AMD Radeon RX 6600S supports Radeon Dual Graphics and Switchable graphics. That is silence, not a statement that they are unsupported.

The AMD Radeon RX 6600S supports Resizable BAR (AMD Smart Access Memory) and AMD SmartShift under Platform.

Media engine

The AMD Radeon RX 6600S provides hardware encode for H.264 (AVC) and HEVC (H.265) and hardware decode for H.264 (AVC), HEVC (H.265) and AV1.

Hardware video codec support of the AMD Radeon RX 6600S
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 6600S supports this codec; that is silence, not a statement that it is unsupported.

Frequently asked questions

How much VRAM does the AMD Radeon RX 6600S have?

The AMD Radeon RX 6600S has 4 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 6600S use and what power supply does it need?

The AMD Radeon RX 6600S has a board power rating of 80 W.

How fast is the AMD Radeon RX 6600S?

The AMD Radeon RX 6600S scores 13,569 in the PassMark G3D benchmark, higher than 92.4% of the 2,658 GPUs benchmarked. Its PassMark rank is #211. In the PassMark DirectX 12 test it averages 58 fps.