Compare HP Z6 G4 vs ThinkStation P520 vs ThinkStation P620
Variants
Secondary
Third
Capacity
Interior Volume
33 L
33 L
Connectivity
CPU Socket
FCLGA2066
AMD SP3
Expansion Slot
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 + 7x via M.2 to PCIe adapter + 6x 3.5" (4 via Flex bay)
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
2x PCIe 3.0 x16 + 1x PCIe 3.0 x8 + 2x PCIe 3.0 x4 + 1x PCI
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 + 4x USB 3.1 Gen1
[Front] 4x USB 3.1 Gen1 + 2x USB 2.0 + 2x PS/2 + 1x RJ45 (1Gbps) + 1x Microphone + 1x Line-in + 1x Line-out + 2x optional USB-C 3.1 Gen2 + 1x optional Thunderbolt 3 + 1x serial | [Rear] 4x USB-C 3.1 Gen1 + 1x Headphone + 1x Microphone + 1x SD card reader
[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 5 + Bluetooth 4.2 / none
WiFi 5 + Bluetooth 5.1 / none
Construction
Colors
Black
Black
Form Factor
EATX desktop computer
ATX desktop computer
ATX desktop computer
Dimensions
Size | Depth
18.3 inch
460 mm / 18.1"
460 mm / 18.1"
Size | Height
17.5 inch
440 mm / 17.3"
446 mm / 17.6"
Size | Width
6.65 inch
165 mm / 6.5"
165 mm / 6.5"
Weight
From 29 lbs
24 kg / 52.91 lbs
24 kg / 52.91 lbs
Function
Audio
High Definition (HD) Audio, Realtek ALC662 codec
High Definition (HD) Audio, Realtek ALC662 codec
Chipset
Intel C622
Intel C422 chipset
AMD WRX80
Graphics
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 NVS 810 4GB DDR3 / Quadro P400 2GB GDDR5 to P5000 16GB GDDR5X / Quadro RTX 4000 8GB GDDR6 to RTX 8000 48GB GDDR6 / Quadro GP100 16GB HBM2 / Quadro GV100 32GB HBM2
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
Operating System
Windows 10 Pro
Windows 10 Pro, Ubuntu, or none
Windows 10 Pro, Ubuntu, or none
Operating Temperature
10⁰ C to 35⁰ C
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 9mm optical drive (DVD-ROM, DVD±RW, or Blu-ray)
Optional 9mm optical drive (DVD-ROM, DVD±RW, or Blu-ray)
Processor
Intel Xeon Bronze, Silver, or Gold processor up to Xeon Gold 6258R
Intel Xeon W-2100 or W-2200 series processors (up to Xeon W-2295)
AMD Ryzen Threadripper PRO 3945WX, 3955WX, 3975WX, or 3995WX
Security
HP Solenoid Lock/Hood Sensor (TWR), Convert TPM to 1.2
Discrete TPM 2.0, TCG certified
Discrete TPM 2.0, TCG certified
Performance
Memory | Capacity
Up to 768 GB with ECC (12x DIMMs)
8x DIMMs, up to 256GB DDR4-2666 w/ Xeon W-2100 series or up to 512GB DDR4-2933 w/ Xeon W-2200 series, 4 channels
8x DIMMs, up to 1TB, 8 channels
Memory | Type
DDR4 2666MHz or 2933MHz
DDR4 2666MHz or 2933MHz ECC
DDR4 3200MHz ECC
Power Supply
1000 W
690W / 900W / 1000W 80 PLUS Platinum
1000W 80 PLUS Platinum
Storage
Up to 256GB NVDIMM + 4x PCIe SSD + 2x M.2 SSD + 4x 3.5" HDD + Removable internal storage
Up to 9x M.2 PCIe SSD + 1x PCIe AIC SSD + 6x SATA HDD
Up to 11x M.2 PCIe SSD + 5x SATA HDD
Production
Debut
2020
2020
2020
Remove
Remove
Remove
Add up to 4 products to the comparison using the search bar above
Information on this page is provided on an as-is basis. No warranty on accuracy is implied. This page may contain affiliate links to third-party merchants such as Amazon and eBay. If you make a purchase using the supplied link, we may receive a commission. Neofiliac places the utmost respect for your privacy. We use no cookie whatsoever beyond that needed for the proper functioning of the website.