RTX A4000: specs and benchmarks
Aggregate performance score
RTX A4000 provides good gaming and benchmark performance at 45.10% of a leader's which is GeForce RTX 5090 D.
Contents
Summary
NVIDIA started RTX A4000 sales 12 April 2021. This is an Ampere architecture desktop card based on 8 nm manufacturing process and primarily aimed at designers. 16 GB of GDDR6 memory clocked at 1.75 GHz are supplied, and together with 256 Bit memory interface this creates a bandwidth of 448.0 GB/s.
Compatibility-wise, this is a single-slot graphics card attached via PCIe 4.0 x16 interface. Its manufacturer default version has a length of 241 mm. 1x 6-pin power connector is required, and power consumption is at 140 Watt.
Primary details
Some basic facts about RTX A4000: architecture, market segment, release date etc.
| Place in the ranking | 82 | |
| Place by popularity | not in top-100 | |
| Power efficiency | 25.10 | of 100.00 (Radeon 890M) |
| Architecture | Ampere (2020−2025) | |
| GPU code name | GA104 | |
| Market segment | Workstation | |
| Release date | 12 April 2021 (4 years ago) |
Detailed specifications
RTX A4000's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of RTX A4000's performance, but for precise assessment you have to consider its benchmark and gaming test results.
| Pipelines / CUDA cores | 6144 | of 24064 (RTX PRO 6000) |
| Core clock speed | 735 MHz | of 2670 MHz (Arc B580) |
| Boost clock speed | 1560 MHz | of 3230 MHz (Radeon RX 9060 XT) |
| Number of transistors | 17,400 million | of 185,000 million (Radeon Instinct MI350X) |
| Manufacturing process technology | 8 nm | of 3 nm (Arc Graphics 140V) |
| Power consumption (TDP) | 140 Watt | of 2400 Watt (Data Center GPU Max Subsystem) |
| Texture fill rate | 299.5 | of 2,554 (Radeon Instinct MI300X) |
| Floating-point processing power | 19.17 TFLOPS | of 126 (RTX PRO 6000 Blackwell) |
| ROPs | 96 | of 512 (Moore Threads MTT S4000) |
| TMUs | 192 | of 1280 (Data Center GPU Max NEXT) |
| Tensor Cores | 192 | of 1216 (Radeon Instinct MI300X) |
| Ray Tracing Cores | 48 | of 188 (RTX PRO 6000) |
Form factor & compatibility
This section provides details about the physical dimensions of RTX A4000 and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).
| Interface | PCIe 4.0 x16 | |
| Length | 241 mm | |
| Width | 1-slot | |
| Supplementary power connectors | 1x 6-pin |
VRAM capacity and type
Parameters of memory installed on RTX A4000: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.
| Memory type | GDDR6 | |
| Maximum RAM amount | 16 GB | of 288 GB (Radeon Instinct MI325X) |
| Memory bus width | 256 Bit | of 8192 Bit (Radeon Instinct MI250X) |
| Memory clock speed | 1750 MHz | of 16000 GB/s (GeForce RTX 4050 Mobile) |
| Memory bandwidth | 448.0 GB/s | of 5,171 GB/s (Radeon Instinct MI300X) |
| Resizable BAR | + |
Connectivity and outputs
Types and number of video connectors present on RTX A4000. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.
| Display Connectors | 4x DisplayPort 1.4a |
API and SDK compatibility
APIs supported by RTX A4000, sometimes including their particular versions.
| DirectX | 12 Ultimate (12_2) | |
| Shader Model | 6.7 | |
| OpenGL | 4.6 | |
| OpenCL | 3.0 | |
| Vulkan | 1.3 | |
| CUDA | 8.6 | |
| DLSS | + |
Benchmark performance
Synthetic benchmark performance of RTX A4000. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
Passmark
This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
GeekBench 5 OpenCL
Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.
GeekBench 5 Vulkan
Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses Vulkan API by AMD & Khronos Group.
GeekBench 5 CUDA
Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses CUDA API by NVIDIA.
Send your test results of RTX A4000.
AMD equivalent
According to our data, the closest AMD alternative to RTX A4000 is Radeon Pro W6800, which is faster by 3% and higher by 9 positions in our ranking.
Here are some closest AMD rivals to RTX A4000:
Similar GPUs
Here is our recommendation of several graphics cards that are more or less close in performance to the one reviewed.
Recommended processors
These processors are most commonly used with RTX A4000 according to our statistics.
