Over the past few months we have seen increasing adoption of AMD Ryzen processors by makers of ultra-compact form-factor (UCFF) desktops. At present, the number of UCFF systems powered by AMD’s Ryzen is not large, but it is growing. On Tuesday HP announced its first small form-factor commercial desktop powered by AMD’s Ryzen Pro 2000-series.

Measuring 177×175×34 mm and weighing 1.26 kilograms, HP’s ProDesk 405 G4 is among the most compact desktop computers based on AMD’s Ryzen available today. The machine can pack AMD’s quad-core Ryzen 5 Pro 2400 GE processor with Radeon Vega 11 graphics that can be paired with up to 32 GB of DDR4 memory, an M.2 PCIe/NVMe SSD and a 2.5-inch HDD. The system consumes up to 65 W of power supplied by an external power brick.

Connectivity-wise, the ProDesk 405 G4 provides an 802.11ac + Bluetooth controller (from Intel or Realtek), a gigabit ethernet port, six USB 3.1 Gen 1 ports, a DisplayPort 1.2 with MST, and optional connectors (including USB 3.1 Gen 2 Type-C, HDMI 2.0, D-Sub, Serial, etc.) based on the specific sub-model.

General Specifications of HP's ProDesk 405 G4 Desktops
  HP ProDesk 405 G4 Desktop Mini PC
CPU AMD Athlon Pro 200GE:
Dual Core with SMT
3.2 GHz
Vega 3 Integrated Graphics
35 W
AMD Ryzen 3 Pro 2200GE:
Quad Core, no SMT
Up to 3.6 GHz
Vega 8 Integrated Graphics
35 W
AMD Ryzen 5 Pro 2400GE:
Quad Core with SMT
Up to 3.8 GHz
Vega 11 Integrated Graphics
35 W
RAM Capacity Up to 32 GB
Type DDR4-2933
Storage Capacity 128 - 512 GB PCIe/NVMe SSD
Options OPAL 2.0-compatible SSD
Wi-Fi 2×2 802.11ac Wi-Fi module (Realtek)
1×1 802.11ac Wi-Fi module (Intel Wireless-AC 9260)
Bluetooth 5.0 or 4.2 (Intel or Realtek)
USB 6 × USB 3.1 Gen 1 Type-A
1 × USB 3.1 Gen 2 Type-C (optional)
Ethernet Realtek RTL8111EPH GbE
Other I/O DisplayPort 1.2 with MST
3.5-mm audio jacks
Optional: USB 3.1 Gen 2 Type-C,
HDMI 2.0, D-Sub, Serial, etc.
Security DASH management, HP Sure Click, H
P BIOSPhere, TPM 2.0, etc.
Dimensions Width 177 mm | 6.96 inches
Length 175 mm | 6.88 inches
Thickness 34 mm | 133 inches
Weight 1.26 kg | 2.77 lb
Operating System Windows 10 Pro 64 – HP recommends Windows 10 Pro
Windows 10 Pro 64 (National Academic only)
Windows 10 Home 64
Windows 10 Home Single Language 64
Price Starting at $500

Apart from compact dimensions and versatile connectivity, HP’s ProDesk 405 G4 also boasts with DASH manageability, a TPM 2.0 module, as well as HP’s Sure Click, and BIOSphere technologies to ensure security against common attacks. The latter are particularly important for HP’s commercial customers.

HP plans to start selling the ProDesk 405 G4 in April starting at $499.99.

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Source: HP

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  • Ktracho - Wednesday, March 20, 2019 - link

    Focusing on just the CPU and this form factor, what specific benefits does Ryzen bring to this table over its competitor? Is it lower cost and power, higher performance and power efficiency, better graphics or security, better availability? I'm just curious what the business case is for choosing Ryzen for this type of product, as opposed to why any specific person might find this choice attractive.
  • gijames1225 - Wednesday, March 20, 2019 - link

    Potentially lower cost, but more importantly, these have decent GPUs for light gaming and media streaming. These would make excellent HTPCs for that reason since they will generally get very close to Intel in CPU performance, but surpass them vastly in GPU..
  • Irata - Thursday, March 21, 2019 - link

    You could also ask the other way around: Why would any specific person chose the Intel model over the Ryzen offering ?

    If you look at the based models (G400 vs. G405) for around $500, you either get the 2C2T Celeron G4900T (2.9Ghz) or the 2C4T PRO 200 GE (3.2 Ghz) with much better performing integrated graphics and double the cache (L1-L3).

    The Celeron G4900T does not support Intel vPro, whereas the Athlon Pro 200GE does support AMD's security technologies. ...
  • mooninite - Wednesday, March 20, 2019 - link

    Nice! Overpriced though. Intel's NUC has these beat price-wise. I would love to have a Ryzen tiny PC option that matches a NUC price.
  • cosmotic - Wednesday, April 3, 2019 - link

    Based on bechmarks for the GPUs, this has the NUC beat by a large margin.
  • fazalmajid - Wednesday, March 20, 2019 - link

    As usual the photos are deceptive, as they don't show the power supply brick. The one on my HP Z2 Mini G4 is comically large. The Mac Mini, on the other hand, has a built-in PSU with just an IEC C8 jack. It's also unfortunate it has a Realtek NIC
  • JoeDuarte - Wednesday, March 20, 2019 - link

    Why is there a cutout for another DisplayPort to the left of the DisplayPort?
  • mathew7 - Thursday, March 21, 2019 - link

    No spdif? NUCs seem to lost that except for the celerons. But I want.....
  • Smell This - Thursday, March 21, 2019 - link

    Unfortunately, time and specifications have passed on the S/PDIF . . . RIP
    (insert screed here on manufactured obsolescence)
  • Smell This - Thursday, March 21, 2019 - link

    I'm thinkin' a fancy, new USB Type-C cable would handle a sheet-load (technical term) of 8-channel loss-less streams at serious bit-rates . . .

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