CMP 90HX vs Radeon RX 6900

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Primary details

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

Place in the ranking22not rated
Place by popularitynot in top-100not in top-100
Power efficiency18.66no data
ArchitectureRDNA 2.0 (2020−2024)Ampere (2020−2024)
GPU code nameNavi 21GA102
Market segmentDesktopWorkstation
Release date28 October 2020 (4 years ago)28 July 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 cores46086400
Core clock speedno data1500 MHz
Boost clock speed2105 MHz1710 MHz
Number of transistors23,000 million28,300 million
Manufacturing process technology7 nm8 nm
Power consumption (TDP)255 Watt320 Watt
Texture fill rate606.2342.0
Floating-point processing power19.4 TFLOPS21.89 TFLOPS
ROPs6480
TMUs288200
Tensor Coresno data200
Ray Tracing Coresno data50

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).

InterfacePCIe 4.0 x16PCIe 4.0 x16
Lengthno data285 mm
Width2-slot2-slot
Supplementary power connectors2x 8-pin2x 8-pin

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 typeGDDR6GDDR6X
Maximum RAM amount16 GB10 GB
Memory bus width256 Bit320 Bit
Memory clock speed16 GB/s1188 MHz
Memory bandwidth512.0 GB/s760.3 GB/s

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, 2x DisplayPort, 1x USB Type-CNo outputs
HDMI+-

API compatibility

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

DirectX12 Ultimate (12_2)12 Ultimate (12_2)
Shader Model6.56.6
OpenGL4.64.6
OpenCL2.03.0
Vulkan1.21.2
CUDA-8.6

Pros & cons summary


Recency 28 October 2020 28 July 2021
Maximum RAM amount 16 GB 10 GB
Chip lithography 7 nm 8 nm
Power consumption (TDP) 255 Watt 320 Watt

RX 6900 has a 60% higher maximum VRAM amount, a 14.3% more advanced lithography process, and 25.5% lower power consumption.

CMP 90HX, on the other hand, has an age advantage of 9 months.

We couldn't decide between Radeon RX 6900 and CMP 90HX. We've got no test results to judge.

Be aware that Radeon RX 6900 is a desktop card while CMP 90HX is a workstation 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 6900
Radeon RX 6900
NVIDIA CMP 90HX
CMP 90HX

Comparisons with similar GPUs

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Community ratings

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3.8 82 votes

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4.7 30 votes

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Questions & comments

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