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Compare ThinkStation P340 SFF vs ThinkStation P520c Tower


800 USD
1467 USD
Offers (incl. referral links)


Interior Volume
8.2 L
25 L


CPU Socket
Expansion Slot
2x M.2 onboard + 2x via M.2 to PCIe adapter +1x 3.5" + 2x 2.5"
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 + 3x via M.2 to PCIe adapter + 4x 3.5" (2 via Flex bay)
PCI Express
2x PCIe 3.0 x16 + 1x PCIe 3.0 x1
2x PCIe 3.0 x16 + 1x PCIe 3.0 x8 + 1x PCIe 3.0 x4
[Front] 1x USB-C 3.2 Gen1 + 2x USB 3.2 Gen2 + 2x USB 3.2 Gen1 + 1x Audio combo + 1x Microphone + 1x optional SD card reader | [Rear] 2x DisplayPort + 1x optional video (DP/HDMI/USB-C) + 2x USB 3.2 Gen1 + 2x USB 2.0 + 1x RJ45 (1Gbps) + 1x serial + 1x 3.5mm
[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] 2x USB-C 3.1 Gen1 + 1x Headphone + 1x Microphone + 1x SD card reader
Wireless Connectivity
WiFi 6 + Bluetooth 5.1 / none
WiFi 5 + Bluetooth 4.2 / none


Form Factor
Small form factor desktop computer
ATX desktop computer


Size | Depth
309.7 mm / 12.2"
426 mm / 16.77"
Size | Height
339.5 mm / 13.4"
376 mm / 14.8"
Size | Width
92.5 mm / 3.6"
175 mm / 6.89"
5.65 kg / 12.46 lbs
14.5 kg / 31.96 lbs


High Definition (HD) Audio, Realtek ALC623 codec
High Definition (HD) Audio, Realtek ALC662 codec
Intel W480 chipset
Intel C422 chipset
Integrated Intel UHD Graphics 630 or P630 or up to 2x discrete NVIDIA Quadro P400 2GB GDDR4 (3x miniDP), P620 2GB GDDR5 (4x miniDP), or P1000 4GB GDDR5 (4x miniDP)
NVIDIA NVS 810 4GB DDR3 or Quadro P400 2GB GDDR5, P600 2GB GDDR5, P620 2GB GDDR5, P1000 4GB GDDR5, P2000 5GB GDDR5, P2200 5GB GDDR5, P4000 8GB GDDR5, P5000 16GB GDDR5X, RTX 4000 8GB GDDR6, or RTX 5000 16GB GDDR6
Operating System
Windows 10, Ubuntu, or none
Windows 10 Pro, Ubuntu, or none
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)
10th-gen Intel Core i3-10100 to i9-10900 (full Comet Lake standard range) or Xeon W-1250, W-1270, or W-1290
Intel Xeon W-2100 or W-2200 series processors (up to Xeon W-2195)
Discrete TPM 2.0, TCG certified
Discrete TPM 2.0, TCG certified


Memory | Capacity
4x DIMMs, up to 128 GB
4x UDIMMs, up to 128GB DDR4-2666 w/ Xeon W-2100 series or up to 256GB DDR4-2933 w/ Xeon W-2200 series
Memory | Type
DDR4-2933 ECC or non-ECC
DDR4 2666MHz or 2933MHz ECC
Power Supply
310 or 380 W, 92% efficient
500W 80 PLUS Platinum or 625W 80 PLUS Platinum
Up to 4x M.2 PCIe SSD + 1x 3.5" SATA + 1x 2.5" SATA
Up to 5x M.2 PCIe SSD + 4x SATA


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