Radeon Instinct MI300X vs GeForce RTX 3090

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Primary details

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

Place in the ranking24not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation14.92no data
Power efficiency13.58no data
ArchitectureAmpere (2020−2024)CDNA 3.0 (2023−2024)
GPU code nameGA102Aqua Vanjaram
Market segmentDesktopWorkstation
Release date1 September 2020 (4 years ago)6 December 2023 (1 year ago)
Launch price (MSRP)$1,499 no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores1049619456
Core clock speed1395 MHz1000 MHz
Boost clock speed1695 MHz2100 MHz
Number of transistors28,300 million153,000 million
Manufacturing process technology8 nm5 nm
Power consumption (TDP)350 Watt750 Watt
Texture fill rate556.02,554
Floating-point processing power35.58 TFLOPS81.72 TFLOPS
ROPs112no data
TMUs3281216
Tensor Cores3281216
Ray Tracing Cores82no data

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 5.0 x16
Length336 mmno data
Width3-slotOAM Module
Supplementary power connectors1x 12-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 typeGDDR6XHBM3
Maximum RAM amount24 GB192 GB
Memory bus width384 Bit8192 Bit
Memory clock speed1219 MHz2525 MHz
Memory bandwidth936.2 GB/s5,171 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 Connectors1x HDMI, 3x DisplayPortNo outputs
HDMI+-

API compatibility

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

DirectX12 Ultimate (12_2)N/A
Shader Model6.5N/A
OpenGL4.6N/A
OpenCL2.03.0
Vulkan1.2N/A
CUDA8.5-

Pros & cons summary


Recency 1 September 2020 6 December 2023
Maximum RAM amount 24 GB 192 GB
Chip lithography 8 nm 5 nm
Power consumption (TDP) 350 Watt 750 Watt

RTX 3090 has 114.3% lower power consumption.

Instinct MI300X, on the other hand, has an age advantage of 3 years, a 700% higher maximum VRAM amount, and a 60% more advanced lithography process.

We couldn't decide between GeForce RTX 3090 and Radeon Instinct MI300X. We've got no test results to judge.

Be aware that GeForce RTX 3090 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.

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NVIDIA GeForce RTX 3090
GeForce RTX 3090
AMD Radeon Instinct MI300X
Radeon Instinct MI300X

Comparisons with similar GPUs

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Community ratings

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1.2 79093 votes

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Questions & comments

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