External graphics stations (eGPUs) can turn a compact laptop or ultrabook into a powerful gaming or professional system. In 2025, the market offers two main types of solutions: ready-made eGPUs with preinstalled graphics cards and empty enclosures, which allow users to install a GPU themselves. Ready-made models are easier to use, while empty enclosures offer flexibility and savings but require some technical knowledge. Below, we review the best options — including new releases like ASUS ROG XG Station 3, Razer Core X V2, ASUS ROG XG Mobile 2025, and Gigabyte AORUS RTX 5090 AI Box — to help you choose the right one.

Types of External GPUs: Ready-Made vs. Empty Enclosures

Ready-made eGPUs (e.g., ASUS ROG XG Mobile, AORUS RTX 5090 AI Box):

  • Pros: ready to use, optimized design, often compact, include additional ports.
  • Cons: expensive, GPU cannot be replaced, limited compatibility with some devices.

Empty enclosures (e.g., ASUS ROG XG Station 3, Razer Core X V2):

  • Pros: flexibility in GPU choice, upgradability, lower initial cost.
  • Cons: require separate GPU purchase, more complex installation, often bulkier.

Best eGPU Models of 2025

1. ASUS ROG XG Station 3

  • Interface: Thunderbolt 5 (up to 80 Gbps).
  • Features: supports NVIDIA RTX 50 and AMD RX 9000 GPUs, PCIe 4.0/5.0 compatibility, built-in 1000W PSU (supports even RTX 5090 with ~600W draw), USB ports, unique GC-HPWR connector for cable-free power (with compatible motherboard).
  • Pros: high bandwidth, support for top-tier GPUs, flexible configuration.
  • Cons: expensive ($400–$600 without GPU), large size, requires technical setup.
  • Best for: enthusiasts who want to choose and install their own GPU (e.g., RTX 5090 or RX 8900 XT) for maximum performance.

2. Razer Core X V2

  • Interface: Thunderbolt 5 (up to 80 Gbps, limited to 8 PCIe Gen 3 lanes).
  • Features: supports full-size NVIDIA and AMD GPUs, 700W PSU, RGB lighting, 4 USB ports, Gigabit Ethernet.
  • Pros: versatile, well-cooled, reasonably priced (~$350).
  • Cons: bandwidth limitation (PCIe Gen 3), doesn’t support the largest GPUs (like RTX 4080/5090).
  • Best for: gamers and streamers looking for a balanced, affordable docking station.

3. ASUS ROG XG Mobile 2025

  • Interface: Thunderbolt 5 (80 Gbps), backward-compatible with Thunderbolt 4/USB4.
  • Features: built-in NVIDIA RTX 5090 Laptop GPU (24 GB GDDR7, 150W TGP) or RTX 5070 Ti, 1 kg weight, 350W PSU, HDMI 2.1, DisplayPort 2.1, USB-A, SD slot, Gigabit Ethernet. 18% more compact and 25% lighter than its predecessor.
  • Pros: portable, high performance, supports up to three 4K displays.
  • Cons: expensive ($1200 for RTX 5070 Ti, $2200 for RTX 5090), non-upgradable GPU.
  • Best for: ASUS ROG or Thunderbolt 5 laptop owners seeking a compact plug-and-play solution.

4. Gigabyte AORUS RTX 5090 AI Box

  • Interface: Thunderbolt 5 (80 Gbps, up to 120 Gbps in boost mode).
  • Features: built-in desktop RTX 5090 (21,760 CUDA cores, 32 GB GDDR7, >3000 AI TOPS), AORUS Waterforce liquid cooling (240 mm radiator, dual 120 mm fans), 3x DisplayPort + 1x HDMI 2.1b, RJ45 Ethernet, up to 100W Power Delivery charging.
  • Pros: ultimate performance, quiet operation, optimized for AI workloads (e.g., Stable Diffusion, Llama), ideal for gaming and professional use.
  • Cons: unknown price and release date, large form factor, non-replaceable GPU.
  • Best for: professionals and power users in AI, rendering, or gaming with Thunderbolt 5 laptops.

How to Choose the Right eGPU

  1. Define Your Goals:
    • Gaming: RTX 5090 (AORUS AI Box, ASUS XG Mobile) or RTX 5070 Ti (ASUS XG Mobile) — excellent performance with DLSS 4 and ray tracing.
    • Professional work (video editing, 3D rendering, AI): AORUS RTX 5090 AI Box (32 GB VRAM, >3000 AI TOPS) — top-tier for demanding workloads.
    • Budget builds: Razer Core X V2 or ASUS ROG XG Station 3 with RTX 4060/4070 or AMD RX 7600.
  2. Check Compatibility:
    • Ensure your laptop supports Thunderbolt 4/5 or USB4. For best performance, Thunderbolt 5 is preferred (available on models like Razer Blade 18, ASUS ROG Strix 16).
    • Verify your CPU (Intel Core i7/i9 or AMD Ryzen 7/9) won’t bottleneck the GPU.
    • Use Intel Thunderbolt Software to confirm eGPU support (“External GPUs supported: Yes”).
  3. Choose the Right Interface:
    • Thunderbolt 5: best option for 2025 (80–120 Gbps), available on newer laptops.
    • Thunderbolt 4/USB4: good enough for most tasks but may lose 20–30% performance vs. desktop PCIe.
    • OCuLink: rare but faster (64 Gbps), suited for enthusiasts.
  4. Budget:
    • Ready-made eGPUs: ASUS ROG XG Mobile ($1200–$2200), AORUS RTX 5090 AI Box (expected >$2000).
    • Empty enclosures: Razer Core X V2 (~$350) + GPU ($500–$2000), ASUS ROG XG Station 3 (~$400–$600) + GPU.
  5. Cooling and Portability:
    • For stationary setups: AORUS AI Box (liquid cooling) or Razer Core X V2 (efficient air cooling).
    • For mobility: ASUS ROG XG Mobile (only 1 kg, book-sized).

Recommendations

  • Maximum Performance and AI Tasks: Gigabyte AORUS RTX 5090 AI Box — a flagship with a desktop RTX 5090, liquid cooling, and Thunderbolt 5. Perfect for professionals and enthusiasts, though pricing is TBD.
  • Compact and Versatile: ASUS ROG XG Mobile 2025 (RTX 5090) — portable, powerful, all-in-one design (around $2200).
  • Budget and Flexibility: Razer Core X V2 + RTX 4070/4060 or AMD RX 7600 — best affordable combo (~$350 + $500–$1000).
  • For Enthusiasts: ASUS ROG XG Station 3 with RTX 5090 or RX 8900 XT — maximum flexibility for DIY builders.

In Short

In 2025, external GPUs remain an excellent way for gamers, streamers, and professionals to combine laptop mobility with desktop-grade performance. The Gigabyte AORUS RTX 5090 AI Box leads in power and AI capability, the ASUS ROG XG Mobile 2025 offers premium portability, and the Razer Core X V2 and ASUS ROG XG Station 3 deliver flexibility and value for custom setups.

Your choice ultimately depends on your tasks, budget, and laptop compatibility — just make sure it supports Thunderbolt 4/5 or USB4 and has a capable CPU to unleash your eGPU’s full potential.