RTX A1000 vs RTX A4000H

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Primary details

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

Place in the rankingnot rated199
Place by popularitynot in top-100not in top-100
Power efficiencyno data38.45
ArchitectureAmpere (2020−2024)Ampere (2020−2024)
GPU code nameGA104GA107
Market segmentWorkstationWorkstation
Release date12 April 2021 (3 years ago)16 April 2024 (less than a year ago)

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 cores61442304
Core clock speed735 MHz727 MHz
Boost clock speed1560 MHz1462 MHz
Number of transistors17,400 million8,700 million
Manufacturing process technology8 nm8 nm
Power consumption (TDP)140 Watt50 Watt
Texture fill rate299.5105.3
Floating-point processing power19.17 TFLOPS6.737 TFLOPS
ROPs9632
TMUs19272
Tensor Cores19272
Ray Tracing Cores4818

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 4.0 x8
Length241 mm163 mm
Width1-slot1-slot
Supplementary power connectors1x 6-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 typeGDDR6GDDR6
Maximum RAM amount16 GB8 GB
Memory bus width256 Bit128 Bit
Memory clock speed1750 MHz1500 MHz
Memory bandwidth448.0 GB/s192.0 GB/s

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 Connectors4x DisplayPort 1.4a4x mini-DisplayPort 1.4a

API compatibility

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

DirectX12 Ultimate (12_2)12 Ultimate (12_2)
Shader Model6.76.7
OpenGL4.64.6
OpenCL3.03.0
Vulkan1.31.3
CUDA8.68.6

Pros & cons summary


Recency 12 April 2021 16 April 2024
Maximum RAM amount 16 GB 8 GB
Power consumption (TDP) 140 Watt 50 Watt

RTX A4000H has a 100% higher maximum VRAM amount.

RTX A1000, on the other hand, has an age advantage of 3 years, and 180% lower power consumption.

We couldn't decide between RTX A4000H and RTX A1000. We've got no test results to judge.


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 RTX A4000H
RTX A4000H
NVIDIA RTX A1000
RTX A1000

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Community ratings

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