Executive Summary

The HP ProDesk 600 G6 SFF introduces 10th Generation Intel Comet Lake processors, bringing higher core counts (up to 10 cores) and improved multi-threading to the compact business form factor. It represents a meaningful performance uplift over the G5, especially in heavily multi-threaded applications, while maintaining the reliable, serviceable design of the series. It's a modern, Windows 11-ready workhorse for demanding professional environments.

Detailed Specifications

1. Processor (CPU) - Significant Upgrade

• Generation: 10th Generation Intel Core (Comet Lake)
• Socket: LGA1200 (New socket - not compatible with G4/G5 CPUs)

Common Configurations:

• Intel Core i5-10500 (6-core/12-thread, 3.1-4.5 GHz) - Most Common
• Intel Core i5-10600 (6-core/12-thread, 3.3-4.8 GHz)
• Intel Core i7-10700 (8-core/16-thread, 2.9-4.8 GHz)
• Intel Core i9-10900 (10-core/20-thread, 2.8-5.2 GHz) - High-End Option

Core/Thread Count: i5 = 6c/12t, i7 = 8c/16t, i9 = 10c/20t.

Hyper-Threading: Returns to i7/i9 (unlike 9th Gen i7).

TDP: 65W (standard), 35W (T-series)

2. Memory (RAM)

• Type: DDR4
• Speed: 2933 MHz (supports up to 3200 MHz with certain CPUs/BIOS)
• Slots: 2 x DIMM slots
• Maximum: 128GB (2x64GB using high-density modules)
• Standard Config: 8GB (1x8GB)

3. Storage

• Interfaces:
• SATA 3 (6 Gb/s)
• M.2 2280 slot (PCIe NVMe Gen 3 x4)
• Drive Bays:
• 1 x 3.5" bay
• 1 x 2.5" bay (shares space with optional optical drive)
• Optical Drive: Optional slim DVD-ROM/RW

4. Graphics

• Integrated: Intel UHD Graphics 630 (i5/i7) or UHD 630 (i9)
• Video Outputs: DisplayPort 1.4 + HDMI 2.0 (or second DisplayPort)
• 4K Support: Dual 4K @ 60Hz.

Dedicated Options (Low-Profile):

• NVIDIA Quadro P620/P1000
• AMD Radeon RX 550X
• NVIDIA GeForce GTX 1650 / RTX A2000 (power-limited)

5. Expansion Slots

• 2 x Low-Profile PCIe slots:
• 1 x PCIe x16 (Gen 3)
• 1 x PCIe x1 (Gen 3)

All cards must be low-profile.

6. Connectivity

Front:

• 2 x USB 3.2 Gen 1
• Headphone/Mic jack
• USB-C common

Rear:

• 4 x USB 3.2 Gen 1, 2 x USB 2.0
• USB 3.2 Gen 1 Type-C (common)
• DisplayPort 1.4 + HDMI 2.0
• RJ-45 Gigabit Ethernet (Intel I219-LM)

Wi-Fi: Optional Intel Wi-Fi 6 AX201 (802.11ax 2x2) - Modern standard

7. Security & Management

• Chipset: Intel Q470 Express (vPro support)
• Security: TPM 2.0 (standard), Kensington lock, optional Smart Card Reader
• Management: Intel vPro/AMT 12.0+, HP Manageability Integration Kit, HP Sure Start Gen6
• BIOS: HP BIOS with enhanced security features

8. Physical Specifications

• Dimensions: ~101.6 x 339.9 x 373.4 mm (4.0" x 13.38" x 14.7")
• Weight: ~5.5 kg (12.1 lbs)
• Power Supply: 310W external power brick (standard for higher-end configs)

9. Operating System Support

• Original: Windows 10 Pro
• Current: Windows 10/11 Pro (Fully Supported)
• Linux: Ubuntu, RHEL certified

Key Advantage: The G6 brings higher core counts with Hyper-Threading across the board, making it significantly better for parallelized workloads like coding, virtualization, data analysis, and modern multi-threaded applications.

Modern Use Assessment & Upgrade Guide

Strengths:

• Excellent Multi-core Performance: 10th Gen i5/i7 are potent for office and professional software.
• Modern Wireless: Wi-Fi 6 is a great optional upgrade.
• Future-Proof: Will handle Windows 11 and software for years.
• Professional I/O: USB-C, dual 4K display support standard.

Weaknesses:

• Still PCIe Gen3: No PCIe 4.0 support (requires 11th Gen+).
• Thermal Constraints: The SFF chassis limits sustained boost on 10-core CPUs.
• Price: Commands a premium over G4/G5 in the refurb market.

Essential Upgrades (2024):

• NVMe SSD: Non-negotiable. A fast 500GB-1TB NVMe drive.
• Dual-Channel RAM: 16GB (2x8GB) minimum, 32GB recommended for professional use.
• Wi-Fi 6: If needed, the AX201 card is a cheap and excellent upgrade.
• Cooling: For i7/i9 configs, ensure good airflow; consider aftermarket low-profile cooler if throttling.

CPU Upgrade Potential:

• Socket Change: Requires LGA1200 CPUs only (10th Gen). Not compatible with 11th Gen Rocket Lake.
• Good Options: Upgrade from i5 to i7-10700 (8c/16t) or i9-10900 (10c/20t).
• BIOS: Must support the specific CPU.

Performance & Use Cases

Excellent For:

• Advanced office multitasking and heavy business applications
• Software development and compilation
• Running multiple virtual machines or containers
• Data analysis and medium-sized datasets
• Light to medium photo/video editing (with adequate RAM)
• As a compact workstation for engineering software viewers

Good For (with dedicated GPU):

• Entry-level machine learning/data science
• CAD work (with Quadro card)
• 1080p gaming (with GTX 1650 class GPU)

Ideal User Profile:

• Power user, data analyst, or developer in a corporate setting
• Small business running demanding line-of-business software
• IT departments standardizing on a modern, supportable platform
• Anyone needing a compact but genuinely powerful desktop

Value Proposition & Recommendation

The G6 is the performance leader in the refurbished SFF market for most users. The 10th Gen platform offers the best balance of core count, clock speed, and modern features before the platform changes again.

Buy the G6 if:

• You need strong multi-threaded performance (i5-10500 6c/12t is a sweet spot).
• You want a system that will feel fast for the next 5+ years.
• Wi-Fi 6 and USB-C are valued modern conveniences.
• You find it at a reasonable price premium over the G5.

Consider a G4/G5 if:

• Your workload is primarily single-threaded or light office use.
• The price difference is significant (more than 25%).
• You don't need the extra cores/threads.

Final Verdict

The HP ProDesk 600 G6 SFF is a top-tier choice for a refurbished professional desktop. The move to 10th Gen CPUs, especially the 6-core/12-thread i5-10500, provides a tangible performance uplift that matches modern software demands. Paired with an NVMe SSD and 16GB+ RAM, it is a powerful, compact, and highly capable workstation that rivals many new PCs. For businesses and power users, the G6 represents an excellent point for performance, longevity, and value.