RTX A400
The RTX A400 is Nvidia’s 4GB graphics card with a 50W board power rating, built on the Ampere GA107 architecture. Below you’ll find what it can run locally, its benchmark scores and its full spec sheet, plus all 1 board version we track, each with its cheapest current price in Germany.
Prices update regularly and may differ at the retailer. This page contains affiliate links.
Prices include 19% VAT. Shipping is shown under each price, and offers are listed by price plus shipping.
Benchmarks
Standardized benchmark scores for this chip, each compared to the fastest card we track and linked to its source. They apply to every board version.
Render
Compute & AI
3D graphics
Local AI performance
What the RTX A400 can run on your own machine, and how fast.
Largest model it can run (8K context)
- Q4 (the usual choice, near-original quality)
- ~3.1B
- Q8 (closer to original, half the model size)
- ~1.8B
- FP16 (unquantised, for training and research)
- ~0.9B
Parameter counts the card holds with room for an 8K conversation, counting the model weights plus its attention cache. A longer conversation needs more memory, so it lowers these figures.
Speed & value
- Speed, 8B model at Q4
- 15-17 tok/s
- Memory bandwidth
- 96 GB/s
- Price per GB of VRAM
- €57.12
Generation speed tracks memory bandwidth, because every word produced reads the whole model from memory. Shown as a range.
Models that fit, at Q4
| Model | Size | Memory needed | Est. speed |
|---|---|---|---|
| Falcon3 3B | 3.2B | 2.7GB | 35-41 tok/s |
| Llama3.2 3B | 3.2B | 3.0GB | 35-41 tok/s |
| Qwen2.5 3B | 3.1B | 2.2GB | 37-43 tok/s |
Popular models small enough for this card at Q4, one per family. Speed is left blank for mixture-of-experts models, where a bandwidth estimate is not reliable enough to publish.
Choosing a card for AI? Compare every GPU for local AI, including setups that pool the memory of two or more cards.
RTX A400 versions (1)
Every board version we track, cheapest first.
- Nvidia RTX A400163 mm€228.46+ €4.99 shipping
| Version | Boost Clock | Length | Color | From | Buy | |
|---|---|---|---|---|---|---|
| Nvidia RTX A400 | — | 163 mm | — | €228.46 + €4.99 shipping | |
1 board version of the RTX A400 are listed above, starting from €228.46. Prices update daily from live retailer stock. Click any version name for its full spec sheet and all current retailer prices. Prices include 19% VAT. Shipping is shown under each price, and offers are listed by price plus shipping.
Specifications
Every RTX A400 board version we track measures 163 mm long.
Performance
- Boost clock
- 1762 MHz
- Base clock
- 1417 MHz
- Shader cores
- 768
- SM count
- 6
- Texture units (TMUs)
- 24
- Render outputs (ROPs)
- 16
- RT cores
- 6 · 2nd gen
- Tensor / AI cores
- 24 · 3rd gen
Memory
- VRAM
- 4GB GDDR6
- Memory bus
- 64-bit
- Bandwidth
- 96 GB/s
- Memory speed
- 12 Gbps
- L2 cache
- 2 MB
GPU die
- Architecture
- Ampere GA107
- Process node
- Samsung 8N
- Foundry
- Samsung
- Die size
- 200 mm²
- Transistors
- 8.7 billion
- Generation
- RTX A-series
Power
- TDP
- 50W
Display & outputs
- Max resolution
- 5120 × 2880
- Max displays
- 4
- HDCP
- 2.2
- Outputs
- 4 Mini DisplayPort 1.4a
- PCIe interface
- PCIe 4.0 ×16
APIs & software
- DirectX
- 12
- Vulkan
- 1.3
- OpenGL
- 4.6
- OpenCL
- 3.0
- CUDA
- Compute 8.6
- Shader model
- 6.6
Video encoding & decoding
| Codec | Encode | Decode |
|---|---|---|
| H.264 / AVC | Supported | Supported |
| H.265 / HEVC | Supported | Supported |
| AV1 | Not supported | Supported |
| VP9 | Not supported | Supported |
Encoder: NVENC 7th gen · Decoder: NVDEC 5th gen
Features
- Upscaling
- DLSS Super Resolution, Ray Reconstruction
- Also runs
- FSR 3, FSR 3 Frame Generation, XeSS 2, XeSS 2 Frame Generation
Physical
- Reference length
- 163 mm
- Slot width
- 1 slots
- Released
- 2024-04-16
768 shader cores feed a 64-bit memory interface delivering 96 GB/s of peak bandwidth. 6 RT cores handle real-time ray tracing; 24 tensor cores accelerate AI workloads and DLSS Super Resolution. Compare the RTX A400 against consumer and workstation cards on the ranking of graphics cards for AI.
How the RTX A400 compares
Cards worth a look for running AI models, picked on memory, estimated generation speed and live prices in Germany. Gaming cards are included wherever they hold as much for less. Open a card for its full spec sheet.
Affiliate disclosure: Some links on this page are affiliate links — MaxMyBuild may earn a commission at no extra cost to you if you buy through them. As an Amazon Associate, MaxMyBuild earns from qualifying purchases. For Amazon, current price and availability are shown on the Amazon product page; product prices and availability are accurate as of the date and time of purchase and are subject to change. Prices shown for other retailers are approximate and may differ at checkout. “Search” links are non-affiliate and provided for convenience only.