Does the GMKtec EVO-X3 have OCuLink?

Yes. It has an OCuLink PCIe Gen4 x4 port for external GPUs, which the EVO-X2 did not have.

Can you upgrade the RAM in the GMKtec EVO-X3?

No. The 128GB of LPDDR5X-8000 is soldered and not upgradeable, although up to 96GB can be allocated as VRAM.

What is the difference between the GMKtec EVO-X3 and the EVO-X2?

Both use the same Ryzen AI Max+ 395 with a 128GB ceiling. The EVO-X3 adds OCuLink, USB4 40Gbps, HDMI 2.1, Wi-Fi 7 and a 140W triple-fan cooler in a larger CNC metal chassis.

Where can I buy the GMKtec EVO-X3?

At launch it sells direct from gmktec.com only. Amazon still carries only the older EVO-X2, X1 and T1.

GMKtec EVO-X3: Ryzen AI Max+ 395 Mini PC With OCuLink

Q: Is the GMKtec EVO-X3 good for local LLMs?

On paper it is built for them, and GMKtec claims support for quantized models in the 200B+ parameter class. Memory bandwidth of about 256 GB/s caps token-generation speed well below a discrete high-end GPU.

The GMKtec EVO-X3 is the headline mini PC launch of the moment: a flagship Ryzen AI Max+ 395 “Strix Halo” mini PC with 128GB of LPDDR5X memory, a triple-fan 140W cooling system, and, the big new addition, an OCuLink eGPU port. It sells direct from gmktec.com at $3,600 (128GB/2TB) and $3,849 (128GB/4TB), making it one of the first retail Strix Halo boxes to ship with OCuLink and a direct rival to the AMD Ryzen AI Halo and the Beelink GTR9 Pro.

This is a launch report, not a full review: we haven’t tested a unit yet. Here’s what’s confirmed, what isn’t, and why local-LLM builders are paying attention.

What is the GMKtec EVO-X3?

The EVO-X3 is the successor to the GMKtec EVO-X2, rebuilt around the same AMD Ryzen AI Max+ 395 platform but in a dramatically redesigned chassis. Tom’s Hardware noted the new unit was shown bearing AMD CEO Lisa Su’s signature of approval. GMKtec is clearly positioning this as its halo product.

The form factor has grown to fit the cooling: a full CNC-machined metal chassis measuring 353 × 186 × 41 mm at about 2.3 kg (roughly PlayStation 4-sized, closer to a console than a NUC). Inside, GMKtec runs the chip at up to 140W in Performance mode (54W Silent, 85W Balanced) through a triple-fan, triple-heat-pipe cooler.

What’s confirmed: specs and pricing

From GMKtec’s official product page and launch coverage:

CPU: AMD Ryzen AI Max+ 395, 16 Zen 5 cores / 32 threads, up to 5.1GHz
GPU: Radeon 8060S integrated graphics, 40 RDNA 3.5 compute units
NPU: XDNA 2 at roughly 50 TOPS, up to 126 TOPS platform total
Memory: 128GB LPDDR5X-8000, soldered (not upgradeable), with up to 96GB allocatable as VRAM
Storage: dual M.2 PCIe 4.0 x4 slots, 2TB or 4TB pre-installed, up to 16TB total
I/O: OCuLink (PCIe Gen4 x4), USB4 40Gbps Type-C, HDMI 2.1, USB-A 10Gbps, 2.5G Ethernet, Wi-Fi 7, Bluetooth 5.4
OS: Windows 11 Pro pre-installed; Ubuntu/Linux supported
Price: $3,600 (2TB) / $3,849 (4TB), listed against a $4,100 regular price

The launch date is genuinely contested. Press coverage, including VideoCardz and Gizmochina, reported early access on June 22, 2026 with a $20 early-bird coupon and a global launch on June 29, 2026. GMKtec’s own product page, however, stated a launch of July 6, 2026 at 12:00 AM PST. As of this writing the page shows the unit in stock at the sale price, so whichever date you believe, it’s orderable now.

What’s new vs the EVO-X2?

The silicon is unchanged: same Ryzen AI Max+ 395, same 128GB ceiling. What’s new is the connectivity and thermals:

OCuLink PCIe Gen4 x4 for external GPUs, absent on the EVO-X2
USB4 40Gbps and HDMI 2.1 output
Wi-Fi 7 radio
The 140W triple-fan cooler in the larger CNC metal chassis

That OCuLink port is the strategic piece: it makes the EVO-X3 one of the first retail Strix Halo machines that can add a discrete GPU for prompt processing or gaming while keeping the 128GB unified pool for model weights.

Is the GMKtec EVO-X3 good for local LLMs?

On paper, that’s exactly who it’s for. With up to 96GB of the 128GB pool allocatable as VRAM, the EVO-X3 can hold models far beyond what any consumer discrete GPU fits. GMKtec claims support for models in the 200B+ parameter class (quantized). The honest caveat carries over from every Strix Halo machine we’ve covered: LPDDR5X-8000 bandwidth (~256 GB/s) caps token-generation speed well below a discrete high-end GPU, the same trade-off we flagged on the NVIDIA DGX Spark at a similar price. Big-model capacity, modest tokens per second.

What’s still unknown

Sustained thermals and noise. 140W in a 41mm-tall chassis is ambitious; no independent long-duration testing exists yet.
Real-world LLM throughput on this specific board and BIOS; early YouTube coverage is promising but thin.
The 192GB variant. VideoCardz reports GMKtec has confirmed a higher-tier EVO-X3 with a Ryzen AI Max+ “PRO 495” and 192GB later this year. Treat naming and timing as preliminary until AMD says it. Related: our Ryzen AI Max+ PRO 495 analysis.
Amazon availability. At launch the EVO-X3 sells direct at gmktec.com only; Amazon still carries only the older EVO-X2, X1, and T1.

Expected availability and price outlook

$3,600–$3,849 puts the EVO-X3 about $400 under the AMD Ryzen AI Halo reference machine with the same chip and memory, and in the same bracket as GB10-class AI boxes. The listed $4,100 “regular” price suggests the launch pricing is promotional. If you want one, the early window is the cheap window.

We’ll publish a full review once we’ve spent time with a retail unit. Until then, our GMKtec EVO-X2 review covers the platform this machine is built on.

Sources & caveats

Specs and pricing come from GMKtec’s official product page, with launch details cross-checked against Tom’s Hardware, VideoCardz, and Wccftech. No independent review data existed at publication time; performance claims above are the manufacturer’s. The June 29 vs July 6 launch-date discrepancy is GMKtec’s own; we’ve reported both.