Technical Snapshot

The Sapphire Radeon RX 7800 XT OC 16GB is a gaming desktop graphics card built on the AMD RDNA 3 architecture (Navi 32 GPU). It delivers 3,840 stream processors, 16 GB GDDR6 memory, on a 256-bit bus, boost clock of 2,475 MHz. The card connects via PCIe 4.0 x16 and draws 263W TDP, requiring a 700W minimum power supply. Part of the Sapphire OC product line, 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, 700W PSU, adequate case clearance
Category: Desktop Graphics Card — Radeon RX 7800 XT (RDNA 3)

Sapphire GPU

Sapphire OC

Radeon RX 7800 XT OC 16GB

Name: Sapphire Radeon RX 7800 XT OC 16GB
Brand: Sapphire
SKU: 11330-01-20G

RDNA 3 · Navi 32 · 3,840 SPs · 16 GB GDDR6 · PCIe 4.0 x16

Stream Processors 3,840

VRAM 16 GB GDDR6

Boost Clock 2,475 MHz

TDP 263W

MPN11330-01-20G

EAN840777089736

CategoryGraphics Cards

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GPU Core & Memory

GPU Chip AMD Navi 32

Architecture RDNA 3

Stream Processors 3,840

Base Clock 2,124 MHz

Boost Clock 2,475 MHz

VRAM 16 GB GDDR6

Memory Bus 256-bit

PCIe Interface PCIe 4.0 x16

TDP 263W

Recommended PSU 700W

Cooling Dual fan

Display Outputs 3x DP 2.1, 1x HDMI 2.1

Full Specifications

Data sourced from Sapphire product specifications and AMD reference data

GPU
GPU Chip	AMD Navi 32
Architecture	RDNA 3
Stream Processors	3,840
Base Clock	2,124 MHz
Boost Clock	2,475 MHz
GPU Vendor	AMD
Memory
VRAM	16 GB GDDR6
Memory Bus	256-bit
Interface & Power
PCIe Interface	PCIe 4.0 x16
TDP	263W
Recommended PSU	700W
Card Design
Slot Width	2-slot
Cooling	Dual fan
Display Outputs	3x DP 2.1, 1x HDMI 2.1
Product
Brand	Sapphire
Brand Series	OC
GPU Series	Radeon RX 7800 XT
Segment	Gaming
MPN	11330-01-20G
EAN	840777089736
Physical
Weight	2.13 kg
Package Dimensions	43.18 x 24.13 x 8.89 cm

Support & Downloads

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

AMD Drivers →

Sapphire Radeon RX 7800 XT OC 16GB User ManualPDF · Installation guide and specifications

Sapphire Support →

← Back to GPU Catalog

Frequently Asked Questions

What motherboards are compatible with the RX 7800 XT OC 16GB?

The Sapphire Radeon RX 7800 XT OC 16GB 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 7800 XT OC 16GB?

A minimum 700W power supply is recommended for the Sapphire Radeon RX 7800 XT OC 16GB. The card has a TDP of 263W, so adequate PSU headroom is critical for stable operation under peak load, especially when paired with a high-end CPU.

Will the RX 7800 XT OC 16GB fit in my case?

Based on package dimensions, the Sapphire Radeon RX 7800 XT OC 16GB requires clearance of approximately 43.18 cm (432 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 7800 XT OC 16GB have?

The Sapphire Radeon RX 7800 XT OC 16GB features 16 GB GDDR6 on a 256-bit bus. This is suitable for 4K/8K gaming, large AI/ML models, and professional rendering workloads.

Can the RX 7800 XT OC 16GB be used for compute workloads?

Yes. The Sapphire Radeon RX 7800 XT OC 16GB supports OpenCL and ROCm compute frameworks with 16 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: Sapphire Radeon RX 7800 XT OC 16GB
MPN: 11330-01-20G
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