Compare ThinkStation P520 vs ThinkStation P720 vs HP Z1 G6
Capacity
Interior Volume
33 L
36 L
Connectivity
CPU Socket
FCLGA2066
2x FCLGA3647
Expansion Slot
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 + 7x via M.2 to PCIe adapter + 6x 3.5" (4 optional, 2 via Flex bay)
3x M.2 + 1x PCIe 3.0 x16 + 2x PCIe 3.0 x1 + 1x PCIe 3.0 x4 (x16 slot)
PCI Express
2x PCIe 3.0 x16 + 1x PCIe 3.0 x8 + 2x PCIe 3.0 x4 + 1x PCI
3x PCIe 3.0 x16 + 1x PCIe 3.0 x8 + 1x PCIe 3.0 x4 + 1x PCI
Ports
[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 3.1 Gen1 + 2x USB 2.0 + 2x PS/2 + 2x RJ45 (1Gbps) + 1x Microphone + 1x Line-in + 1x Line-out + 2x optional USB-C 3.1 Gen2 + 1x optional Thunderbolt + 1x optional serial | [Rear] 4x USB 3.1 Gen1 + 1x Audio combo + 1x optional SD card reader
[Front] 2x USB 2.0 + 2x USB 3.2 Gen2 + 2x USB 3.2 Gen1 + 1x DisplayPort 1.4 + 1x Audio + 1x RJ45 | [Rear] 2x USB 3.2 Gen1 + 1x USB-C 3.2 Gen2 + 2x USB 3.2 Gen2 + 5-in-1 SD card reader
Wireless Connectivity
WiFi 5 + Bluetooth 4.2 / none
WiFi 5 + Bluetooth 4.2 / none
Construction
Colors
Black
Black
Form Factor
ATX desktop computer
ATX desktop computer
ATX desktop computer
Dimensions
Size | Depth
460 mm / 18.1"
485 mm / 19.1"
308 cm
Size | Height
440 mm / 17.3"
446 mm / 17.6"
370 mm
Size | Width
165 mm / 6.5"
175 mm / 6.89"
168 mm
Weight
24 kg / 52.91 lbs
25.7 kg / 56.7 lbs
9.86 kg
Function
Audio
High Definition (HD) Audio, Realtek ALC662 codec
High Definition (HD) Audio, Realtek ALC662 codec
Conexant CX20632 codec
Chipset
Intel C422 chipset
Intel C621 chipset
Intel Q470 (vPro)
Graphics
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 NVS 810 4GB DDR3 / Quadro P400 2GB GDDR5 to P6000 24GB GDDR5X / RTX 4000 8GB GDDR6 to RTX 8000 48GB GDDR6 / GP100 16GB HBM2 / GV100 32GB HBM26
NVIDIA GeForce RTX 2080 8GB
Operating System
Windows 10 Pro, Ubuntu, or none
Windows 10 Pro, Ubuntu, or none
Windows 10 Pro
Operating Temperature
10⁰ C to 35⁰ C
10⁰ C to 35⁰ C
Optical Disc
Optional 9mm optical drive (DVD-ROM, DVD±RW, or Blu-ray)
Optional 9mm optical drive (DVD-ROM, DVD±RW, or Blu-ray)
Optional
Processor
Intel Xeon W-2100 or W-2200 series processors (up to Xeon W-2295)
Up to 2x 165W Intel Xeon Scalable CPUs Bronze, Silver, Gold, or Platinum
Intel Core i7-10700K or i9-10900
Security
Discrete TPM 2.0, TCG certified
Discrete TPM 2.0, TCG certified
Performance
Memory | Capacity
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
12x DIMMs, up to 768GB DDR4-2933 or 384GB DDR4-2666, 12 channels (6 channels per CPU)
32 GB (4x DIMMs)
Memory | Type
DDR4 2666MHz or 2933MHz ECC
DDR4 2666MHz or 2933MHz ECC
DDR4 2666MHz
Power Supply
690W / 900W / 1000W 80 PLUS Platinum
690 / 900 / 1000 W 80 PLUS Platinum
Storage
Up to 9x M.2 PCIe SSD + 1x PCIe AIC SSD + 6x SATA HDD
Up to 9x M.2 PCIe SSD + 6x 3.5" / 10x 2.5" SATA HDD
1 TB PCIe NVMe SSD + (1x 2.5" HDD + 2x 3.5" HDD bays)
Production
Debut
2020
2020
2020
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