MSI Gaming Radeon RX 6400 64-bit 4GB GDDR6 DP/HDMI PCIe 4 Torx Single Fan FreeSync DirectX 12 VR Ready ITX OC Graphics Card (RX 6400 AERO ITX 4G)
Bottom line: The MSI Gaming Radeon RX 6400 64-bit 4GB GDDR6 DP/HDMI PCIe 4 Torx Single ($420.00 on Amazon as of 2026-10-21 10:13 UTC): Single-fan AERO ITX shroud sized for SFF and HTPC cases that reject full-length cards; main trade-off: only 4GB GDDR6, tight for high texture settings in current titles.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Single-fan AERO ITX shroud sized for SFF and HTPC cases that reject full-length cards
- ✓ Factory OC clocks out of the box, no manual tuning required
- ✓ PCIe 4.0 interface with DisplayPort and HDMI outputs
- ✓ FreeSync support for tear-free 1080p on variable-refresh monitors
Cons
- ✗ Only 4GB GDDR6, tight for high texture settings in current titles
- ✗ 64-bit memory bus, half the width of typical 128-bit budget cards
- ✗ Single-fan cooler leaves less thermal headroom than dual-fan designs
- ✗ Two display outputs listed (DP/HDMI), so no third-monitor connector
Manufacturer description
MSI AERO ITX graphics cards are perfect for small form factor systems and HTPC's as they only take up a fraction of the space of a full size graphics card.
SpecPicks Verdict
SpecPicks scored MSI Gaming Radeon RX 6400 64-bit 4GB GDDR6 DP/HDMI PCIe 4 Torx… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the graphics cards category. Compare with similarly-priced alternatives in the graphics cards category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for graphics cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Full Specifications
| Brand | msi |
|---|---|
| Weight | 4g |
| GPU Series | AMD RX 6000 Series |
| Model Name | RX 6400 |
| Unit Count | 1 Count |
| Model Number | Radeon RX 6400 AERO ITX 4G |
| Number of Fans | 1 |
| Mfr Part Number | Radeon RX 6400 AERO ITX 4G |
| Video Processor | AMD |
| Antenna Location | Gaming |
| Graphics Card Ram | 4 GB |
| Graphics Ram Size | 4 GB |
| Graphics Ram Type | GDDR6 |
| Compatible Devices | Desktop |
| Graphics Coprocessor | AMD Radeon RX 6400 |
| Graphics Description | AMD Radeon RX 6400 |
| Item Dimensions L x W | 6.8"L x 4.9"W |
| Video Output Interface | DisplayPort |
| Graphics Card Interface | PCI-Express x16 |
| Display Maximum Resolution | 3840x2160 |
Performance Data
View gaming FPS, AI inference throughput, and synthetic scores for the Radeon RX 6400 — the core hardware component in this product. Benchmarks sourced from TechPowerUp, PassMark, and the r/LocalLLaMA community.
Which local LLMs fit in 4 GB?
4 GB is below the floor for an 8B model at Q4 — expect part of the model to execute on the CPU.
- ❌ 7–9B models (Llama 3.1 8B, Qwen 3 8B) — needs 8 GB+
- ❌ 12–14B models (Qwen 3 14B, Phi-4) — needs 12 GB+
- ❌ 20–27B models (Gemma 3 27B, Mistral Small) — needs 20 GB+
- ❌ 30–35B models (Qwen 3 32B, QwQ 32B) — needs 24 GB+
- ❌ 70B models (Llama 3.3 70B, Qwen 2.5 72B) — needs 48 GB+
Ready to buy?
MSI Gaming Radeon RX 6400 64-bit 4GB GDDR6 DP/HDMI PCIe 4 Torx Single Fan FreeSync DirectX 12 VR Ready ITX OC Graphics Card (RX 6400 AERO ITX 4G) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Related Graphics Cards
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Best Retro Handhelds in 2026 — From $35 to $500
- Best 1440p Gaming GPUs in 2026
- How to Build a Windows 98 Retro PC in 2026
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
More reviews from the SpecPicks archive
Browse all reviews →- Best Gaming Headsets and Audio Gear for Console Players in 2026
- GLM-5.2 on an RTX 3060 12GB: Can the New Open-Weights Leader Run Local?
- Best Gaming Controllers for PC in 2026: 5 Picks Tested Across Genres
- Best GPU for 4K Gaming in 2026: Five Cards Ranked by FPS-per-Dollar
- Period-Correct 2002 LAN Party Build Around an Athlon XP and GeForce 4 Ti
- Best Raspberry Pi Alternative for Klipper in 2026 (and When the Pi Still Wins)
- Best Streaming Microphones for Content Creators in 2026
- Mac Studio AI Model 2025: Performance vs AMD Alternatives
- Best CPU Cooling for AMD Ryzen Builds in 2026
- GeForce 4 Ti 4600 vs GeForce FX 5900: The Last Great AGP Cards Compared (2026)
- Best Streaming Gear for New Content Creators in 2026
- Claude Sonnet 5 Closes the Opus Gap: When Local Still Wins
- Best Wired Gear for Tournament-Legal LAN Play in 2026
- Steam Deck: Linux's Trojan Horse for PC Gamers
- vLLM vs Ollama for a Single-User 12GB Rig in 2026
- Best Single-Board Computer Project Kits for Beginners (2026)
- CompactFlash vs SATA-to-IDE: The Best Silent Boot Drive for a Win98 PC
- SATA vs NVMe for a Ryzen 5800X Gaming Build: Does It Matter?
- Self-Hosted Home Assistant on a Raspberry Pi 4 8GB (2026 Build)
- Raspberry Pi 5 8GB Review (2026): Still the SBC to Beat
- RTX 3060 12GB vs Ryzen 7 5800X for Qwen3 14B Local Inference (2026)
- IPEX-LLM + Ollama in Docker: Running Local Models on Intel GPUs
- pxpipe: Hide Text in PNGs to Cut Claude Code Token Costs up to 70%
- Ollama vs LM Studio MLX in 2026: Which Local Runner Wins?
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090