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Compare HP Z4 G4 [Secondary] vs HP Z6 G4 [Secondary] vs ThinkStation P620

Price

MSRP
1599 USD
3308 USD
1937 USD
Offers (incl. referral links)

Variants

Secondary
Secondary
Third

Capacity

Interior Volume
33 L

Connectivity

CPU Socket
AMD SP3
Expansion Slot
2x M.2 PCIe 3.0 x4 + 1x PCIe 3.0 x16
2x M.2 PCIe 3.0 x4 + 1x PCIe 3.0 x16
2x Optical drives / 1x optical drive + 2x 3.5" SATA / 2x M.2 SSD removable drive enclosures / other I/O ports + 2x M.2 onboard + 9x via M.2 to PCIe adapter + 5x 3.5" (3 optional, 1 via Flex bay)
PCI Express
4x PCIe 4.0 x16 + 2x PCIe 4.0 x8
Ports
[Front] 2x Audio + 2x PS/2 + 1x Serial + 2x RJ-45 1Gb + 6x USB 3.1 Gen1 | [Rear] 1x Headphone + 2x USB-C 3.1 Gen2 + 2x USB 3.1 Gen1
[Front] 2x Audio + 2x PS/2 + 1x Serial + 2x RJ-45 1Gb + 6x USB 3.1 Gen1 | [Rear] 1x Headphone + 4x USB 3.1 Gen1
[Front] 4x USB 3.2 Gen2 + 2x USB 2.0 + 2x PS/2 + 1x RJ45 (10Gbps) + 1x Microphone + 1x Line-in + 1x Line-out + 2x optional serial | [Rear] 2x USB-C 3.2 Gen2 + 2x USB 3.2 Gen2 + 1x Audio combo + 1x optional SD card reader
Wireless Connectivity
WiFi 6 + Bluetooth 5
WiFi 5 + Bluetooth 5.1 / none

Construction

Colors
Black
Form Factor
ATX desktop computer
EATX desktop computer
ATX desktop computer

Dimensions

Size | Depth
386 cm / 15.2 inch
18.3 inch
460 mm / 18.1"
Size | Height
445 mm / 17.5 inch
17.5 inch
446 mm / 17.6"
Size | Width
169 mm / 6.65 inch
6.65 inch
165 mm / 6.5"
Weight
From 22.4 lbs / 10.2 kg
From 29 lbs
24 kg / 52.91 lbs

Function

Audio
High Definition (HD) Audio, Realtek ALC662 codec
Chipset
Intel C422 or X299
Intel C622
AMD WRX80
Graphics
AMD Radeon Pro WX 3100 4GB, WX 3200 4GB, W 5500 8GB, W 5700 8GB, WX 7100 8GB, or WX 9100 16GB or NVIDIA Quadro P400 2GB, P620 2GB, P1000 4GB, P2200 5GB, RTX 4000 8GB, RTX 5000 16GB, RTX 6000 24GB, RTX 8000 48GB, or GV100 32GB
AMD Radeon Pro WX 3100 4GB, WX 3200 4GB, W5500 8GB, W5700 8GB, WX 7100 8GB, or WX 9100 16GB or NVIDIA Quadro P400 2GB, P620 2GB, P1000 4GB, P2200 5GB, RTX 4000 8GB, RTX 5000 16GB, or RTX 6000 24GB
NVIDIA Quadro P620 2GB GDDR5 to P2200 5GB GDDR5 / RTX 4000 8GB GDDR6 to RTX 8000 48GB GDDR6 / GV100 32GB HBM2 / RTX A6000 48GB GDDR6
Misc
Optional PCIe dual Gb or dual 10Gb Networking
Optional PCIe dual Gb or dual 10Gb Networking
Operating System
Windows 10 Pro
Windows 10 Pro
Windows 10 Pro, Ubuntu, or none
Operating Temperature
10⁰ C to 35⁰ C
Optical Disc
Optional DVD-ROM, DVD-RW, or Blu-ray Writer + Optional 2nd DVD Writer or Blu-ray Writer
Optional DVD-ROM, DVD-RW, or Blu-ray Writer + Optional 2nd DVD Writer or Blu-ray Writer
Optional 9mm optical drive (DVD-ROM, DVD±RW, or Blu-ray)
Processor
Intel Core i9-10900X, i9-10920X, i9-10940X, or i9-10980XE or Intel Xeon W-2123, W-2223, W-2125, W-2225, W-2235, W-2133, W-2245, W-2255, W-2265, W-2275, or W-2295
Intel Xeon Bronze, Silver, or Gold processor up to Xeon Gold 6258R
AMD Ryzen Threadripper PRO 3945WX, 3955WX, 3975WX, or 3995WX
Security
HP Solenoid Lock/Hood Sensor (TWR), Convert TPM to 1.2
HP Solenoid Lock/Hood Sensor (TWR), Convert TPM to 1.2
Discrete TPM 2.0, TCG certified

Performance

Memory | Capacity
Up to 512 GB with ECC (8x DIMMs)
Up to 768 GB with ECC (12x DIMMs)
8x DIMMs, up to 1TB, 8 channels
Memory | Type
DDR4 2666MHz or 2933MHz
DDR4 2666MHz or 2933MHz
DDR4 3200MHz ECC
Power Supply
465W, 750W, or 1000W
1000 W
1000W 80 PLUS Platinum
Storage
Up to 480GB Intel Optane PCIe SSD + 4x PCIe internal storage + 2x M.2 storage + 4x 3.5" HDD/SSD + Removable internal storage
Up to 256GB NVDIMM + 4x PCIe SSD + 2x M.2 SSD + 4x 3.5" HDD + Removable internal storage
Up to 11x M.2 PCIe SSD + 5x SATA HDD

Production

Debut
2020
2020
2020
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