Technical Snapshot

The MSI Radeon RX 7900 XT 20GB is a gaming desktop graphics card built on the AMD RDNA 3 architecture (Navi 31 GPU). It delivers 5,376 stream processors, 20 GB GDDR6 memory, on a 320-bit bus, boost clock of 2,400 MHz. The card connects via PCIe 4.0 x16 and draws 300W TDP, requiring a 750W minimum power supply. this card targets 4K/8K gaming, AI/ML inference, and professional rendering.

Use Case: 4K/8K gaming, AI/ML inference, real-time ray tracing, 3D rendering, content creation
Compatibility: Requires PCIe x16 slot, 750W PSU, adequate case clearance
Category: Desktop Graphics Card — Radeon RX 7900 XT (RDNA 3)

MSI GPU

MSI

Radeon RX 7900 XT 20GB

Name: MSI Radeon RX 7900 XT 20GB
Brand: MSI
SKU: R79XTGTC20G

RDNA 3 · Navi 31 · 5,376 SPs · 20 GB GDDR6 · PCIe 4.0 x16

Stream Processors 5,376

VRAM 20 GB GDDR6

Boost Clock 2,400 MHz

TDP 300W

MPNR79XTGTC20G

EAN824142313497

CategoryGraphics Cards

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GPU Core & Memory

GPU Chip AMD Navi 31

Architecture RDNA 3

Stream Processors 5,376

Base Clock 2,000 MHz

Boost Clock 2,400 MHz

VRAM 20 GB GDDR6

Memory Bus 320-bit

PCIe Interface PCIe 4.0 x16

TDP 300W

Recommended PSU 750W

Full Specifications

Data sourced from MSI product specifications and AMD reference data

GPU
GPU Chip	AMD Navi 31
Architecture	RDNA 3
Stream Processors	5,376
Base Clock	2,000 MHz
Boost Clock	2,400 MHz
GPU Vendor	AMD
Memory
VRAM	20 GB GDDR6
Memory Bus	320-bit
Interface & Power
PCIe Interface	PCIe 4.0 x16
TDP	300W
Recommended PSU	750W
Product
Brand	MSI
GPU Series	Radeon RX 7900 XT
Segment	Gaming
MPN	R79XTGTC20G
EAN	824142313497
Physical
Weight	2.36 kg
Package Dimensions	40.513 x 29.6926 x 8.712200000000001 cm

Support & Downloads

AMD Radeon Software Adrenalin (Latest)Windows 10/11 64-bit

AMD Drivers →

MSI Radeon RX 7900 XT 20GB User ManualPDF · Installation guide and specifications

MSI Support →

← Back to GPU Catalog

Frequently Asked Questions

What motherboards are compatible with the RX 7900 XT 20GB?

The MSI Radeon RX 7900 XT 20GB uses a PCIe 4.0 x16 interface and is compatible with any motherboard that has a PCIe x16 slot. This includes AMD AM5 and AM4 motherboards as well as Intel LGA 1851 and LGA 1700 boards. PCIe is backward-compatible, so older PCIe 3.0 slots will work at reduced bandwidth.

What power supply is recommended for the RX 7900 XT 20GB?

A minimum 750W power supply is recommended for the MSI Radeon RX 7900 XT 20GB. The card has a TDP of 300W, so adequate PSU headroom is critical for stable operation under peak load, especially when paired with a high-end CPU.

Will the RX 7900 XT 20GB fit in my case?

Based on package dimensions, the MSI Radeon RX 7900 XT 20GB requires clearance of approximately 40.513 cm (405 mm). Verify your case's maximum GPU length specification before purchasing. Also ensure sufficient PCIe slot clearance and adequate airflow.

How much VRAM does the RX 7900 XT 20GB have?

The MSI Radeon RX 7900 XT 20GB features 20 GB GDDR6 on a 320-bit bus. This is suitable for 4K/8K gaming, large AI/ML models, and professional rendering workloads.

Can the RX 7900 XT 20GB be used for compute workloads?

Yes. The MSI Radeon RX 7900 XT 20GB supports OpenCL and ROCm compute frameworks with 20 GB VRAM. It is suitable for GPU-accelerated rendering and some machine learning workloads. For production AI/ML, NVIDIA GPUs with CUDA support may offer broader software compatibility.

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Product: MSI Radeon RX 7900 XT 20GB
MPN: R79XTGTC20G
Schemas: Product + BreadcrumbList + FAQPage
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