Radeon Instinct MI300X vs HD 8400

Primary details

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

Place in the ranking1171not rated
Place by popularitynot in top-100not in top-100
Power efficiency1.91no data
ArchitectureGCN 2.0 (2013−2017)CDNA 3.0 (2023−2024)
GPU code nameKalindiAqua Vanjaram
Market segmentDesktopWorkstation
Release date23 November 2013 (10 years ago)6 December 2023 (less than a year 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 cores12819456
Core clock speed400 MHz1000 MHz
Boost clock speedno data2100 MHz
Number of transistors1,178 million153,000 million
Manufacturing process technology28 nm5 nm
Power consumption (TDP)25 Watt750 Watt
Texture fill rate3.2002,554
Floating-point processing power0.1024 TFLOPS81.72 TFLOPS
ROPs4no data
TMUs81216
Tensor Coresno data1216

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).

InterfaceIGPPCIe 5.0 x16
WidthIGPOAM Module
Supplementary power connectorsno dataNone

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 typeSystem SharedHBM3
Maximum RAM amountSystem Shared192 GB
Memory bus widthSystem Shared8192 Bit
Memory clock speedSystem Shared2525 MHz
Memory bandwidthno data5,171 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 ConnectorsNo outputsNo outputs

API compatibility

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

DirectX12 (12_0)N/A
Shader Model6.3N/A
OpenGL4.6N/A
OpenCL2.03.0
Vulkan1.2.131N/A

Pros & cons summary


Recency 23 November 2013 6 December 2023
Chip lithography 28 nm 5 nm
Power consumption (TDP) 25 Watt 750 Watt

HD 8400 has 2900% lower power consumption.

Instinct MI300X, on the other hand, has an age advantage of 10 years, and a 460% more advanced lithography process.

We couldn't decide between Radeon HD 8400 and Radeon Instinct MI300X. We've got no test results to judge.

Be aware that Radeon HD 8400 is a desktop card while Radeon Instinct MI300X is a workstation one.


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

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


AMD Radeon HD 8400
Radeon HD 8400
AMD Radeon Instinct MI300X
Radeon Instinct MI300X

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


2.8 128 votes

Rate Radeon HD 8400 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.4 57 votes

Rate Radeon Instinct MI300X on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.