LLM / AI Workstation — Used GPU, RAM, NVMe Build
Local LLMs (Llama, Mistral, Qwen) are realistic for many in 2025/2026. A used RTX 3090 with 24 GB VRAM for 600-800€ runs most 70B models quantized. Here are the components for a serious local AI workstation or inference server — from GPU to the right motherboard.
What you need
- →GPU with lots of VRAM: RTX 3090 (24 GB) or 4090 (24 GB) for single-card; 70B+ needs 2x
- →RAM: 64 GB DDR4 minimum, 128 GB more comfortable
- →NVMe SSD: at least 2 TB for models and datasets
- →Motherboard: enough PCIe lanes for multi-GPU (X570 or TRX40)
- →CPU: not critical — modern 12-core is fine, AVX-512 nice to have
- →PSU: 850W to 1200W depending on GPU config
Top current deals
INTEL Xeon E5-1620 V3 / 4x 3,5 - 3,6 GHz LGA 2011-v3 10MB Cache / Quad Core CPU
€4.89Sehr gut - Refurbished
77% below average
€3.50Ø €22.90€109.00
50 other similar listings on eBay now · How is this calculated?
INTEL Xeon E5-2620 / 6x 2,00 - 2,50 GHz / Sockel 2011 SERVER Six Core CPU
€3.50Sehr gut - Refurbished
83% below average
€3.50Ø €22.90€109.00
50 other similar listings on eBay now · How is this calculated?
INTEL Xeon E5-2620 V3 / 6x 2,4 - 3,2 GHz / Sockel 2011-v3 SERVER Six Core CPU
€4.19Sehr gut - Refurbished
80% below average
€3.50Ø €22.90€109.00
50 other similar listings on eBay now · How is this calculated?
808409-001 HPE Nvidia Tesla M6 Mezzanine GPU Adapter
€59.88Used
98% below average
€59.88Ø €2900.99€3802.00
3 other similar listings on eBay now · How is this calculated?
Gaming Grafikkarte | MSI NVIDIA RTX 3050 Gaming X 8gb | PCIE 4.0 | Cores 2560
€142.00Gebraucht
62% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
Dell MZ-WLL1T6C Enterprise SSD 1.6TB NVME PCIe U.2 2.5'' 4WDXY
€282.64Gebraucht
€176.65 / TB
64% below average
€194.99Ø €1020.00€8623.00
51 other similar listings on eBay now · How is this calculated?
Intel 1.6TB NVMe PCIe SSD 2.5" U.2 DC P4600 Series SSDPE2KE016T701 Enterprise
€296.96Gebraucht
€185.60 / TB
62% below average
€194.99Ø €1020.00€8623.00
51 other similar listings on eBay now · How is this calculated?
Western Digital Enterprise NVMe SSD: DC SN620, 1.6TB, PCIe3x4, U.2
€245.00Gebraucht
€153.13 / TB
69% below average
€194.99Ø €1020.00€8623.00
51 other similar listings on eBay now · How is this calculated?
Intel Xeon E5-2680 V3 CPU/12x 2,5GHz-3,3GHz/12 Core Prozessor/LGA 2011-3/SR1XP
€5.39Gebraucht
74% below average
€3.50Ø €22.90€109.00
50 other similar listings on eBay now · How is this calculated?
Intel Xeon E5-2680 V3 CPU/12x 2,5GHz-3,3GHz/12 Core Prozessor/LGA 2011-3/SR1XP
€6.89Sehr gut - Refurbished
67% below average
€3.50Ø €22.90€109.00
50 other similar listings on eBay now · How is this calculated?
Samsung 4GB DDR4 SO DIMM 3200 MHz CL22 (M471A5244) RAM Speicher
€19.99Neu
75% below average
€19.99Ø €89.99€319.15
54 other similar listings on eBay now · How is this calculated?
Intel Xeon E5-1620 v2 CPU Prozessor Sockel 2011
€4.99Gebraucht
76% below average
€3.50Ø €22.90€109.00
50 other similar listings on eBay now · How is this calculated?
Intel Xeon E5-2680 v3 CPU 12x 2,5GHz-3,3GHz Prozessor Sockel 2011-3 SR1XP
€6.89Sehr gut - Refurbished
67% below average
€3.50Ø €22.90€109.00
50 other similar listings on eBay now · How is this calculated?
GIGABYTE H610M S2H V3 DDR4 LGA 1700 mit HDMI und Display Port
€44.99Gebraucht
64% below average
€44.99Ø €131.50€380.00
51 other similar listings on eBay now · How is this calculated?
INTEL Xeon E5-2660 V3 / 10x 2,6 - 3,3 GHz / LGA 2011-v3 25MB Cache / 10 Core CPU
€4.89Sehr gut - Refurbished
77% below average
€3.50Ø €22.90€109.00
50 other similar listings on eBay now · How is this calculated?
Samsung 8GB DDR4 3200MHz RAM M471A1G44BB0-CWE
€19.99Gebraucht
75% below average
€19.99Ø €89.99€319.15
54 other similar listings on eBay now · How is this calculated?
Intel DC P4510 1TB U.2 NVMe SSD PCIe 3.1 x4 2.5" Enterprise SSDPE2KX010T8
€194.99Gebraucht
€194.99 / TB
75% below average
€194.99Ø €1020.00€8623.00
51 other similar listings on eBay now · How is this calculated?
MSI GeForce RTX 2060 6GB GDDR6 Grafikkarte NVIDIA Gaming GPU HDMI DisplayPort
€140.00Gebraucht
62% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
Intel Xeon E5-2680 8-Core SR0KH 2,70GHz Server CPU
€9.75Gebraucht
54% below average
€3.50Ø €22.90€109.00
50 other similar listings on eBay now · How is this calculated?
960GB 2,5" Micron 7300 Pro Datacenter Enterprise 24/7 U.2 NVMe 220K IOPS +NEW+
€446.00Neu: Sonstige (siehe Artikelbeschreibung)
€464.58 / TB
43% below average
€194.99Ø €1020.00€8623.00
51 other similar listings on eBay now · How is this calculated?
GIGABYTE GeForce RTX 3070 GAMING OC 8GB GDDR6 Grafikkarte
€253.00Gebraucht
31% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
Intel P4510 2TB PCIe Gen3 x4 NVMe U.2 2.5" Enterprise SSD SSDPE2KX020T8
€525.98Gebraucht
€262.99 / TB
33% below average
€194.99Ø €1020.00€8623.00
51 other similar listings on eBay now · How is this calculated?
Asus GeForce RTX2080 Strix 8GB GDDR6 Gaming Grafikkarte
€210.00Gebraucht
43% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
1TB 2,5" Intel DC P4500 Enterprise 24/7 Raid NVMe SSD 3200Mb/s +NEW+
€446.00Neu: Sonstige (siehe Artikelbeschreibung)
€446.00 / TB
43% below average
€194.99Ø €1020.00€8623.00
51 other similar listings on eBay now · How is this calculated?
MSI NVIDIA GeForce RTX 4060 Ventus 2x Black 8g OC Gaming Grafikkarte Top Zustand
€250.00Gebraucht
32% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
WNEU! ASUS ROG Strix Gaming GeForce RTX 3070 OC 8GB GDDR6 Grafikkarte
€250.00Gebraucht
32% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
RTX 2080 Ti 11GB GDDR6 Grafikkarte Dell Blower Gaming GPU Top
€219.00Gebraucht
41% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
ASUS Dual GeForce RTX 3050 Edition 6GB GDDR6 Gaming Grafikkarte
€193.30Neu
48% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
SK hynix DDR4 RAM SODIMM 16gb 2x 8gb 3200mhz
€46.50Gebraucht
42% below average
€19.99Ø €89.99€319.15
54 other similar listings on eBay now · How is this calculated?
Arbeitsspeicher G-SKILL AEGIS F4-3200C 16D-16GIS 2x8GB DDR4 16GB KIT (lesen)
€55.00Gebraucht
31% below average
€19.99Ø €89.99€319.15
54 other similar listings on eBay now · How is this calculated?
GIGABYTE B760 DS3H AX ATX Mainboard Intel LGA1700 DDR5 4 Slots HDMI
€80.00Gebraucht
36% below average
€44.99Ø €131.50€380.00
51 other similar listings on eBay now · How is this calculated?
ASRock B760 Pro RS WiFi LGA 1700 ATX Intel Mainboard DDR5 ATX Motherboard
€83.00Gebraucht
34% below average
€44.99Ø €131.50€380.00
51 other similar listings on eBay now · How is this calculated?
MSI PRO B760M-P DDR4 LGA 1700 MicroATX Intel Mainboard
€70.00Gebraucht
44% below average
€44.99Ø €131.50€380.00
51 other similar listings on eBay now · How is this calculated?
ASUS ROG Strix Gaming Grafikkarte 8GB Nvidia Geforce RTX 2060 super
€160.00Gebraucht
57% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
ASUS TUF Gaming GeForce RTX 3070 Ti OC 8GB GDDR6X Grafikkarte
€255.00Gebraucht
31% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
GIGABYTE GeForce RTX 2080 GAMING OC Grafikkarte 8 GB GDDR6
€165.00Gebraucht
55% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
NVIDIA Geforce RTX 2060 Super 8GB GDDR6 Gainward GHOST Gaming PC Grafikkarte
€159.00Gebraucht
57% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
Grafikkarte Rtx 3060 ti gaming trio z
€230.00Gebraucht
38% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
Intel Xeon E5-2620 v4 2.10GHz LGA2011-3 8-Core Server CPU SR2R6
€12.95Gebraucht
38% below average
€3.50Ø €22.90€109.00
50 other similar listings on eBay now · How is this calculated?
PROZESSOR CPU INTEL XEON E5-1620 v3 3.5GHz SR20P LGA2011-3
€8.99Hervorragend - Refurbished
57% below average
€3.50Ø €22.90€109.00
50 other similar listings on eBay now · How is this calculated?
Crucial 16GB DDR4-3200 RAM UDIMM (CT16G4DFRA32A) Verschiedene Samsung 16GB 8GB 4
€38.99Gebraucht
51% below average
€19.99Ø €89.99€319.15
54 other similar listings on eBay now · How is this calculated?
ASUS Dual GeForce RTX 3050 6GB GDDR6 Gaming Grafikkarte Nvidia Grafikkarte HDMI
€179.00Gebraucht
51% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
ASUS Prime Z690-P LGA 1700 ATX Intel Mainboard
€56.99Als Ersatzteil / defekt
54% below average
€44.99Ø €131.50€380.00
51 other similar listings on eBay now · How is this calculated?
Intel HP Optane 375GB P4800X U.2 SFF Enterprise NVMe PCIe P02559-001 878014-B21
€362.00Neu: Sonstige (siehe Artikelbeschreibung)
€965.33 / TB
54% below average
€194.99Ø €1020.00€8623.00
51 other similar listings on eBay now · How is this calculated?
ASUS PRIME B760-PLUS Mainboard Sockel LGA 1700 DDR5 PCIe 5.0 ATX B-Ware
€79.95Sehr gut - Refurbished
36% below average
€44.99Ø €131.50€380.00
51 other similar listings on eBay now · How is this calculated?
Palit GeForce RTX2070 Dual Fan 8GB GDDR6 NVIDIA GPU Gaming Grafikkarte -sehr gut
€159.99Gebraucht
57% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
ASUS PRIME B760M-K Intel B760 LGA 1700 micro ATX
€68.04Neu: Sonstige (siehe Artikelbeschreibung)
46% below average
€44.99Ø €131.50€380.00
51 other similar listings on eBay now · How is this calculated?
EVGA GeForce RTX 3050 XC Gaming 8GB GDDR6 Grafikkarte G-Sync VR-Ready HDMI 3x DP
€249.06Neu: Sonstige (siehe Artikelbeschreibung)
33% below average
€140.00Ø €269.99€2600.00
47 other similar listings on eBay now · How is this calculated?
Frequently asked questions
RTX 3090 or 4090 for LLMs?
3090 is the price-performance king for LLM: 24 GB VRAM, used ~600-800€. 4090 is 50% more tokens/sec but costs double and has the same VRAM. For most local setups the 3090 is the right pick unless you do throughput-critical inference.
Do I need datacenter GPUs (Tesla, A100)?
Tesla P40 (24 GB, ~250€ used) is a cheap entry to 24-GB VRAM but slow (Pascal architecture, poor quantization support). A100/H100 are out of hobby budget. Consumer GPUs (3090/4090) are today's sweet spot.
How much RAM do I need?
For pure GPU inference: 32 GB is enough. If you load models to system RAM first then push to GPU (or use CPU offloading): 64+ GB. For training or datasets: 128+ GB. RAM is cheap, err on the side of more.