RTX A4000H

Ampere NVIDIA RTX A Series Creator Workstation Desktop GDDR6 2021 NVIDIA

Key Metrics

Architecture: Ampere
Launch Date: 2021-04-12
CUDA Cores: 6,144
Memory: 16 GB GDDR6
Memory Bandwidth: 448 GB/s
TDP/TBP: 140 W
Interface: PCIe 4.0 x16

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GPU Specs

Identity
Entry Type	Workstation GPU
Official Name	NVIDIA RTX A4000H
GPU Codename	GA104
Architecture	Ampere
Launch Date	2021-04-12
Market Segment Notes	Workstation, Creator in NVIDIA RTX A Series
Core Specs
GPU Die	GA104
Chip Variant / Package	BGA-2713
Process Node	Samsung 8 nm
Transistor Count	17.4 billion
Die Size	392 mm²
CUDA Cores	6144
SM Count	48
TMUs	192
ROPs	96
AI Units / Tensor Cores	192
RT Units / RT Cores	48
Base Clock	735 MHz
Boost Clock	1,560 MHz
Pixel Fillrate	149.8 GP/s
Texture Fillrate	299.5 GT/s
FP32 Throughput	19.17 TFLOPS
FP16 Throughput	19.17 TFLOPS
FP64 Throughput	0.3 TFLOPS
Memory
Memory Size	16 GB
Memory Type	GDDR6
Memory Bus Width	256-bit
Memory Clock	1,750 MHz
Memory Bandwidth	448 GB/s
L2 Cache	4 MB
L1 Cache	128 KB
Board and Display
TDP / TBP	140 W
Recommended PSU	300 W
Power Connectors	1x 6-pin
Interface	PCIe 4.0 x16
Display Outputs	4x DisplayPort 1.4a
Slot Width	Single-slot, 241 mm length
Card Length	241 mm
Board Partner Model	Reference or OEM specification
Reference Design	NVIDIA reference design
Software
CUDA Compute Capability	8.6
Shader Model	6.8
DirectX Support	DirectX 12.2
Vulkan Support	Vulkan 1.4
OpenGL Support	OpenGL 4.6
OpenCL Support	OpenCL 3.0

Partial entry. Core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.

Why It Mattered

RTX A4000H represents the professional side of NVIDIA RTX A Series and the Ampere generation around 2021. Certified-driver workflows, VRAM configuration, display outputs, and OEM workstation compatibility are the main historical reasons to track it separately from consumer GeForce models.

Sources

Sources reviewed: 2026-06-20

This entry is still being source-checked.

Specifications are currently based on reference/spec-dump sources. Historical notes require additional source review.

Data confidence and source status

Partial entry. Core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.

Verified: core specifications and historical notes have been reviewed against listed sources.
Partial: core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.
Imported: spec-only imported entry pending editorial source review.
Needs source review: narrative notes are incomplete until reviewed.

Independent reference sources

TechPowerUp GPU SpecsModel-level specification reference for this GPU entryOpen source

Derived datasets and spec dumps

RightNow GPU DatabaseOpen data inventory used for bulk normalization and cross-checking Derived/spec-dump source. Treat as a reference dataset, not independent historical verification.Open source

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Why It Mattered

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Independent reference sources

Derived datasets and spec dumps