A mini PC class that often forces trade-offs is getting a sharper spec-to-price pitch: GMKtec’s K8 Plus is now listed with a 23% Amazon Prime discount, pairing an 8-core Ryzen 7 APU, 32 GB of DDR5 RAM, and 512 GB of storage for just around $689.
The deal applies to Prime members and was available at the time of writing, according to Notebookcheck. The unit is sold through GMKtec’s official Amazon store, which matters for buyers trying to avoid gray-market listings or unclear seller support.
GMKtec K8 Plus cuts the price, but not the memory spec
The tension here is simple: mini PCs usually shrink the chassis and then quietly shrink the configuration. The K8 Plus deal does the opposite on memory, shipping with 32 GB DDR5 instead of a thinner entry-level loadout.
Notebookcheck says the specific model in the deal includes:
- CPU: AMD Ryzen 7 8845HS
- Cores: 8-core APU
- Memory: 32 GB DDR5
- Storage: 512 GB
- Discount: 23%
- Amazon price: just around $689
- Eligibility: Amazon Prime members
That combination makes the deal more interesting than a basic small-form-factor desktop discount. The Ryzen 7 8845HS is not AMD’s newest mobile silicon, but Notebookcheck says the chip is “more than powerful enough” for the vast majority of daily tasks.
The caveat is price timing. Notebookcheck also flags that memory and storage prices have been volatile enough to make older price comparisons less useful. In other words, the deal is not being framed as a return to the cheapest mini PC pricing of a year ago. It is being framed as a respectable current offer for this configuration.
“The discounted price or deal mentioned in this item was available at the time of writing and may be subject to time restrictions and/or limited unit availability.”
That warning should shape how buyers read the listing. The useful number is not the headline discount alone. It is the final checkout price after Prime eligibility, coupons, seller status, and availability are confirmed.
Ryzen 7 8845HS and OCuLink push the K8 Plus beyond a tiny office box
The GMKtec K8 Plus runs on AMD’s Ryzen 7 8845HS, a Hawk Point APU based on Zen 4. Notebookcheck describes the architecture as aging, but still capable, and says the two-year-old octa-core chip is only around 10% slower than the newer Ryzen AI 7 450 in multicore benchmarks such as Cinebench 2024.
That comparison is the most important performance clue in the source material. It suggests the K8 Plus is not being sold merely as a browser-and-spreadsheets appliance. It has enough CPU headroom to make the 32 GB RAM meaningful.
Here is the practical split:
| Area | Source-backed spec | MLXIO read |
|---|---|---|
| CPU | 8-core AMD Ryzen 7 8845HS | Stronger than basic mini PC chips for everyday multitasking |
| Memory | 32 GB DDR5, upgradable to 96 GB | The standout part of this discounted configuration |
| Storage | 512 GB, upgradable to 8 TB | Expandable, but maxing it out may be expensive |
| Graphics | Radeon 780M iGPU | Fine for low-end or non-intensive graphics work, not a discrete-GPU substitute |
| Expansion | OCuLink | Relevant for users considering an external GPU setup |
Notebookcheck is blunt about the graphics limitation: there is no room for discrete graphics inside a mini PC that is just under 1 liter in volume. That is expected. The interesting part is the workaround.
The OCuLink port gives buyers a path to connect an external GPU. Notebookcheck says that can support “potent eGPU connections,” which changes the role of the K8 Plus. It can stay compact on the desk but still leave a route open for GPU-heavy work if the buyer adds the right external hardware.
The port selection also supports the value case. The K8 Plus includes:
- Dual USB4
- Dual USB 3.2 Gen 2 Type-A
- Dual USB 2.0 Type-A
- Dual 2.5 G Ethernet
- OCuLink
- WiFi 6
- Bluetooth 5.2
That I/O mix is the difference between a small PC that needs dongles immediately and one that can anchor a dense desk setup. Readers comparing compact PC discounts may also want MLXIO’s related coverage of the 21% cut on Lenovo’s ThinkCentre mini PC and the 64GB GMKtec EVO-X1 Pro OCuLink bet.
The Prime discount is the deal — and the risk
The assumption with Amazon hardware deals is that the headline discount tells the story. Here, it does not. The reality is more conditional: the 23% cut is tied to Amazon Prime, and Notebookcheck warns that price and availability can change.
Before buying, the checks are straightforward:
- Final price: Confirm the checkout total, not just the product-page discount.
- Prime status: Make sure the 23% offer is actually attached to your account.
- Seller: Verify the listing is from GMKtec’s official Amazon store.
- Configuration: Confirm it is the 32 GB RAM / 512 GB storage variant.
- Upgrade plans: Price out RAM or storage expansion before assuming the 96 GB and 8 TB ceilings are affordable.
Analysis: the K8 Plus looks best for buyers who value compact size, memory capacity, and CPU performance more than internal graphics expansion. The weak point is obvious. Anyone expecting serious built-in GPU performance will run into the limits of the Radeon 780M iGPU, even though Notebookcheck says it should handle very low-end titles and graphically non-intensive workloads.
That makes OCuLink the pressure point. If buyers treat it as optional future expansion, the K8 Plus is a compact Ryzen desktop with unusually generous RAM for the deal price. If they treat it as mandatory for gaming or GPU-heavy work, the real cost rises once an eGPU setup is added.
The next thing to watch is whether the 23% Amazon Prime cut holds, spreads to other configurations, or disappears with stock changes. For now, the K8 Plus deal is strongest for shoppers who can use 32 GB DDR5 immediately and do not need discrete graphics inside the box.
Key Takeaways
- The K8 Plus offers a strong mini PC configuration with 32 GB DDR5 RAM and an 8-core Ryzen 7 APU.
- The 23% Prime discount brings the listed Amazon price to around $689.
- Buying through GMKtec’s official Amazon store may reduce seller-support risks compared with unclear listings.
