NVIDIA · RTX

NVIDIA RTX A4000

The NVIDIA RTX A4000 is a graphics card released on April 12, 2021, built on the Ampere architecture. It has 6,144 shading units, 16 GB of GDDR6 memory, a boost clock of 1.56 GHz and a 140 W board power rating. It scores 19,365 in the PassMark G3D benchmark. It supports DirectX 12 Ultimate (FL 12_2), OpenGL 4.6, Vulkan 1.3, OpenCL 3.0 and CUDA compute capability 8.6.

AmpereGA104-875-A1

8/10 key specs recorded · 49 facts

Depth: 40 recorded fields, 11 features, 5 PassMark workloads

Specification data last verified October 1, 2026 against PassMark Videocard Benchmark, NVIDIA Developer: CUDA GPUs, NVIDIA Developer: Video Encode and Decode GPU Support Matrix and Wikipedia GPU list tables (wikigrid-2026-09). Coverage: 8 of 10 tracked specifications recorded.

PassMark Videocard Benchmark NVIDIA Developer: CUDA GPUs NVIDIA Developer: Video Encode and Decode GPU Support Matrix PassMark Videocard Benchmark Wikipedia GPU list tables (wikigrid-2026-09)

Shading units

6,144cores

Memory

16 GB

GDDR6

Boost clock

1.56 GHz

735 MHz base

Board power

140 W

Performance

The NVIDIA RTX A4000 scores 19,365 in the PassMark G3D benchmark, higher than 96.3% of the 2,658 GPUs benchmarked (PassMark rank #104), measured across 2,546 submitted results. Its PassMark G2D score is 1,019.

PassMark G3D Mark

19,365

Rank #104
Faster than 96.3% of 2,658 GPUs
2,546 samples

0relative to the fastest GPU on record (41,928)

PassMark workload tests

DirectX 9 242 fps

reference: fastest recorded 526 fps · faster than 94.6% of 1,675 GPUs

DirectX 10 124 fps

reference: fastest recorded 231 fps · faster than 94.2% of 1,602 GPUs

DirectX 11 157 fps

reference: fastest recorded 362 fps · faster than 91.6% of 1,430 GPUs

DirectX 12 72 fps

reference: fastest recorded 213 fps · faster than 90.3% of 1,274 GPUs

GPU Compute 9,509 ops/s

reference: fastest recorded 26,591 ops/s · faster than 93.7% of 1,447 GPUs

Averages of PassMark PerformanceTest submissions; frames/sec are PassMark test-scene rates, not game FPS. Tests PassMark does not report for this card are omitted. PassMark listing

In the PassMark workload tests the NVIDIA RTX A4000 averages DirectX 9 242 fps, DirectX 10 124 fps, DirectX 11 157 fps, DirectX 12 72 fps and GPU Compute 9,509 ops/s, across 2,546 submitted results. Frames per second are PassMark test-scene rates, not game frame rates.

As stated by PassMark

Category Workstation

Bus interface PCIe 4.0 x16

Max memory 16 GB

Core clock 735 MHz

Memory clock 1750 MHz

DirectX 12_2

OpenGL 4.6

Max TDP 140 W

First benchmarked 2021-05-23

Samples 2,546

PassMark listing (collected 2026-09-30)

PassMark's own listing for the NVIDIA RTX A4000 states the PCIe 4.0 x16 interface, up to 16 GB of memory, a core clock of 735 MHz, DirectX 12_2 and OpenGL 4.6, first benchmarked on 2021-05-23. These are PassMark's figures, shown separately from the specification tables above.

Not to be confused with

This page covers the NVIDIA RTX A4000 specifically. It is a different product from NVIDIA RTX A4000 Laptop GPU, NVIDIA RTX A4000H, NVIDIA RTX A4000 Mobile, which have their own specifications. Check the exact model name before comparing figures.

Graphics processor

Architecture Ampere

Codename GA104-875-A1

Chip Not recorded

Process node Not recorded

Transistors Not recorded

Die size Not recorded

The NVIDIA RTX A4000 is based on the Ampere architecture and uses the GA104-875-A1 graphics processor.

Shader configuration

Shading units 6,144

Compute units Not recorded

Streaming multiprocessors Not recorded

Execution units Not recorded

Texture units (TMUs) 192

Render output units (ROPs) 96

Ray tracing cores Not recorded

Tensor / AI cores Not recorded

XMX engines Not recorded

Infinity cache Not recorded

The NVIDIA RTX A4000 has 6,144 shading units, 192 texture mapping units and 96 render output units.

The NVIDIA RTX A4000 does not use XMX engines; those are specific to Intel Arc graphics. Infinity Cache is an AMD architectural feature and does not apply to the NVIDIA RTX A4000. Feex has no recorded ray tracing core count for the NVIDIA RTX A4000.

Clock speeds

Base clock 735 MHz

Boost clock 1.56 GHz

Game clock Not recorded

Memory clock Not recorded

Effective memory clock Not recorded

The NVIDIA RTX A4000 runs at a base clock of 735 MHz and boosts to 1.56 GHz.

Memory

Size 16 GB

Type GDDR6

Bus width Not recorded

Bandwidth Not recorded

The NVIDIA RTX A4000 is equipped with 16 GB of GDDR6 memory.

Board and power

The NVIDIA RTX A4000 has a board power rating of 140 W and it connects over PCIe 4.0 x16.

Board power (TDP) 140 W

Total board power Not recorded

Suggested PSU Not recorded

Power connectors Not recorded

Slot width Not recorded

Length Not recorded

Width Not recorded

Height Not recorded

Cooler Not recorded

Max temperature Not recorded

Bus interface PCIe 4.0 x16

Market

Launched April 12, 2021

Launch price $1,000

Status Not recorded

Form factor Not recorded

Segment Desktop

Series RTX

The NVIDIA RTX A4000 was released on April 12, 2021 and launched at a price of $1,000.

Benchmarks

PassMark G3D 19,365

PassMark G2D 1,019

Rank #104

Samples 2,546

Graphics and compute APIs

The NVIDIA RTX A4000 supports DirectX 12 Ultimate (FL 12_2), OpenGL 4.6, Vulkan 1.3, OpenCL 3.0 and CUDA compute capability 8.6.

DirectX 12 Ultimate (FL 12_2)

OpenGL 4.6

Vulkan 1.3

OpenCL 3.0

CUDA compute capability 8.6

Features

The NVIDIA RTX A4000 has 2 supported features recorded outside the media engine. A feature that no source mentions is shown as not listed, never as unsupported.

Rendering

Supported: DirectX 12 Ultimate

Microsoft's top DirectX 12 feature tier, covering hardware ray tracing, mesh shaders, variable-rate shading and sampler feedback.

Not listed (3)

No source Feex holds states whether the NVIDIA RTX A4000 supports Hardware ray tracing, NVIDIA DLSS and Vulkan ray tracing. That is silence, not a statement that they are unsupported.

The NVIDIA RTX A4000 supports DirectX 12 Ultimate under Rendering.

Compute and AI

Supported: CUDA Compute capability 8.6

Support for NVIDIA's CUDA computing platform, used by many creative, scientific and AI applications.

Not listed (2)

No source Feex holds states whether the NVIDIA RTX A4000 supports Tensor cores and NVLink / SLI. That is silence, not a statement that they are unsupported.

The NVIDIA RTX A4000 supports CUDA (Compute capability 8.6) under Compute and AI.

Media engine

The NVIDIA RTX A4000 provides hardware encode for H.264 (AVC) and HEVC (H.265) and hardware decode for H.264 (AVC), HEVC (H.265), AV1 and VP9. It does not support hardware encode for AV1.

NVIDIA NVENC encoder 7th Generation Encoder engines: 1NVIDIA's dedicated video-encoding engine, used by streaming and capture software; newer generations encode more efficiently.

NVIDIA NVDEC decoder 5th Generation Decoder engines: 1NVIDIA's dedicated video-decoding engine; newer generations support more codecs and formats.

Hardware video codec support of the NVIDIA RTX A4000
Codec	Encode	Decode
H.264 (AVC)	Supported4:4:4: Yes	Supported
HEVC (H.265)	Supported4:2:2: No; 4:4:4: Yes; 10-bit: Yes; B-frames: Yes; 8K: Yes	Supported4:4:4: Yes
AV1	Not supported	Supported
VP9	Not stated by the vendor	Supported

supported explicitly not supported not stated by the vendor

Media engines recorded for the NVIDIA RTX A4000: NVIDIA NVENC encoder (7th Generation, encoder engines: 1) and NVIDIA NVDEC decoder (5th Generation, decoder engines: 1).

Frequently asked questions

How much VRAM does the NVIDIA RTX A4000 have?

The NVIDIA RTX A4000 has 16 GB of GDDR6 memory.

How much power does the NVIDIA RTX A4000 use and what power supply does it need?

The NVIDIA RTX A4000 has a board power rating of 140 W.

How fast is the NVIDIA RTX A4000?

The NVIDIA RTX A4000 scores 19,365 in the PassMark G3D benchmark, higher than 96.3% of the 2,658 GPUs benchmarked. Its PassMark rank is #104. In the PassMark DirectX 12 test it averages 72 fps.

Does the NVIDIA RTX A4000 support AV1 encoding?

No. Feex records AV1 hardware encoding as explicitly not supported on the NVIDIA RTX A4000, although it can decode AV1 in hardware.

Does the NVIDIA RTX A4000 support DirectX 12 Ultimate?

Yes. The NVIDIA RTX A4000 supports DirectX 12 Ultimate.

What is the CUDA compute capability of the NVIDIA RTX A4000?

The NVIDIA RTX A4000 has CUDA compute capability 8.6.

What bus interface does the NVIDIA RTX A4000 use?

The NVIDIA RTX A4000 connects over PCIe 4.0 x16.

When was the NVIDIA RTX A4000 released and how much did it cost at launch?

The NVIDIA RTX A4000 was released on April 12, 2021 and launched at a price of $1,000.

Corrections to this record

After an audit, 1 empty field was filled from sources. Each change is listed with its old value, new value, rule and sources.

1 filled value

Architecture: Ampere (was Not recorded). Rule: Architecture from chip codename. chip GA104 -> Ampere. Sources: Wikipedia: List of Nvidia graphics processing units (revision 1377107724).

The audit log is public: all changes for this GPU, the corrections overview and the method.