Radeon RX 6600M vs RX 5800 XT

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot rated136
Place by popularitynot in top-100not in top-100
Power efficiencyno data24.57
ArchitectureRDNA 2.0 (2020−2024)RDNA 2.0 (2020−2024)
GPU code nameNavi 23Navi 23
Market segmentDesktopLaptop
Release dateno data31 May 2021 (3 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores33281792
Core clock speedno data2068 MHz
Boost clock speed1775 MHz2416 MHz
Number of transistorsno data11,060 million
Manufacturing process technology7 nm7 nm
Power consumption (TDP)275 Watt100 Watt
Texture fill rate369.2270.6
Floating-point processing power11.81 TFLOPS8.659 TFLOPS
ROPs6464
TMUs208112
Ray Tracing Coresno data28

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop sizeno datamedium sized
InterfacePCIe 4.0 x16PCIe 4.0 x8
Width2-slotno data
Supplementary power connectors2x 8-pinNone

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR6GDDR6
Maximum RAM amount8 GB8 GB
Memory bus width256 Bit128 Bit
Memory clock speed14000 MHz1750 MHz
Memory bandwidth448.0 GB/s224.0 GB/s
Shared memory--

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors1x HDMI, 3x DisplayPortNo outputs
HDMI+-

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 Ultimate (12_1)12 Ultimate (12_2)
Shader Modelno data6.5
OpenGL4.64.6
OpenCLno data2.1
Vulkan-1.3

Pros & cons summary


Power consumption (TDP) 275 Watt 100 Watt

RX 6600M has 175% lower power consumption.

We couldn't decide between Radeon RX 5800 XT and Radeon RX 6600M. We've got no test results to judge.

Be aware that Radeon RX 5800 XT is a desktop card while Radeon RX 6600M is a notebook one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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AMD Radeon RX 5800 XT
Radeon RX 5800 XT
AMD Radeon RX 6600M
Radeon RX 6600M

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Community ratings

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3.5 207 votes

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4.3 1000 votes

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Questions & comments

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