Dell T560 vs Lenovo ST650 V3
A specification-by-specification comparison of the Dell PowerEdge T560 and the Lenovo ThinkSystem ST650 V3, built from Dell’s and Lenovo’s own documents. 1 headline measure favours the T560, 4 favour the ST650 V3, and 21 processors appear in both lists.
Bottom line. T560 leads on storage density. ST650 V3 leads on virtualisation, databases and in-memory work, AI and acceleration, network throughput. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.

The measures that decide it
Each row is a figure both vendors publish. Bars show the split between the two; a badge marks the larger figure, which is not always the better buy — a shallower chassis or a lower power ceiling can matter more.
Which one, and why
Drawn from the measures above and each model’s own data sheet. Neither vendor publishes benchmark results for these servers, so nothing here claims one is “faster”.
Choose the T560 if…
- Largest power supply: 2,800 W against 2,600 W on the ST650 V3
- Two 4th or 5th Gen Xeon Scalable processors, up to 32 cores each, with 80 PCIe 5.0 lanes per processor and up to three UPI links between them.
Choose the ST650 V3 if…
- Memory ceiling: 4 TB against 1.5 TB on the T560
- Drive bays: 32 against 24 on the T560
- Accelerators: Up to 8 against Up to 6 on the T560
- Storage-rich for a tower: up to 32 × 2.5-inch or 16 × 3.5-inch hot-swap bays, and up to 24 NVMe drives with a full x4 link each, 12 of them on onboard ports.
Where each one pulls ahead
Calls made on documented capacity only — cores, memory, bays, accelerators and network options — with the figures behind each one shown.
Side by side, differences first
Everything both documents state, grouped. The default view hides rows where the two machines are identical.
Processors
Every processor each vendor lists for the model, from its own document.
| Specification | T560 | ST650 V3 |
|---|---|---|
| Processors listed | 21 | 41 |
| Highest processor TDP | 225 W | 250 W |
| Processor families | 4th Gen Xeon Scalable · 5th Gen Xeon Scalable | 5th Gen Xeon Scalable · 4th Gen Xeon Scalable |
Memory
| Specification | T560 | ST650 V3 |
|---|---|---|
| DIMM slots | 16 | 32 |
| Slots per processor | 8 | 16 |
| Largest module listed | 96 GB | 128 GB |
| Memory types | RDIMM DDR5-4800 · RDIMM DDR5-5600 | RDIMM DDR5-5600 (5th Gen) · RDIMM DDR5-4800 / 10x4 RDIMM (4th Gen) · 9x4 RDIMM · 3DS RDIMM |
Storage
Bay counts are the maximum each document states, including rear and mid-chassis positions.
| Specification | T560 | ST650 V3 |
|---|---|---|
| Maximum bays | 24 | 32 |
| Bay sizes | 3.5-inch · 2.5-inch | 2.5-inch · 3.5-inch |
| Boot devices | BOSS-N1 (HW RAID, 2 x M.2 NVMe SSD) · Internal USB 3.0 (optional) | ThinkSystem M.2 SATA/NVMe 2-Bay Enablement Kit (B5XJ) - VROC RAID · ThinkSystem M.2 RAID B540i-2i SATA/NVMe Adapter (BYFF) - integrated Broadcom RAID · ThinkSystem M.2 NVMe 2-Bay RAID Adapter (B8P9) - integrated Marvell RAID |
| Storage controllers | 8 | 16 |
Accelerators & I/O
| Specification | T560 | ST650 V3 |
|---|---|---|
| Accelerators supported | Up to 6 | Up to 8 |
| Double-wide cards listed | 3 | 0 |
| OCP slots | 1 | 0 |
| PCIe network slots | 6 | 9 |
| Network cards listed | 13 | 11 |
Power & platform
| Specification | T560 | ST650 V3 |
|---|---|---|
| Power-supply options | 11 | 6 |
| Output range | 600–2,800 W | 750–2,600 W |
| Input types | AC · −48 V DC · 277 VAC / HVDC | AC |
| Management | iDRAC9 | XClarity Controller 2 |
| Chassis depthVendors measure depth differently — see each data sheet | 4.5U tower: height 464 mm with feet / 446 mm without / 508.8 mm with casters | 734 mm |
Processors, memory, bays and power
The same charts each data sheet carries, drawn to the same scale so the two ranges can be read against each other.
T560: processors by cores and TDP
ST650 V3: processors by cores and TDP
T560: memory with every slot filled
ST650 V3: memory with every slot filled
T560: drive bays
Front panel
24 × 2.5" SAS/SATA at the front — 24 bays in total.
ST650 V3: drive bays
Front panel
8 × 2.5" SAS/SATA at the front — 8 bays in total.
T560: power supplies
ST650 V3: power supplies
21 processors you can order in either
Both vendor documents list these parts, so a build can be matched across the two and the comparison comes down to the chassis: 0 more are exclusive to the T560 and 20 to the ST650 V3.
| Processor | Cores | TDP |
|---|---|---|
| Intel Xeon Gold 6448Y | 32 | 225 W |
| Intel Xeon Gold 6438Y+ | 32 | 205 W |
| Intel Xeon Gold 6438M | 32 | 205 W |
| Intel Xeon Gold 5420+ | 28 | 205 W |
| Intel Xeon Gold 5512U | 28 | 185 W |
| Intel Xeon Gold 6442Y | 24 | 225 W |
| Intel Xeon Gold 5418Y | 24 | 185 W |
| Intel Xeon Gold 5412U | 24 | 185 W |
| Intel Xeon Silver 4416+ | 20 | 165 W |
| Intel Xeon Gold 6426Y | 16 | 185 W |
| Intel Xeon Gold 5416S | 16 | 150 W |
| Intel Xeon Gold 6526Y | 16 | 195 W |
T560 vs ST650 V3, answered
Is the T560 or the ST650 V3 the faster server?
Neither document publishes benchmark results, so this page compares what they do state. The T560 lists 21 processors up to 32 cores at 225 W; the ST650 V3 lists 41 up to 32 cores at 250 W. Fully populated that is 64 cores against 64.
Which holds more memory?
The T560 has 16 DIMM slots and a stated ceiling of 1.5 TB. The ST650 V3 has 32 and 4 TB.
Which takes more drives?
T560: 24 bays across 6 documented layouts. ST650 V3: 32 across 6. Counts include rear and mid-chassis positions where the vendor documents them.
Can either take GPUs?
T560: up to 6 accelerators, 3 double-wide cards listed. ST650 V3: up to 8, 0 double-wide listed.
Do they share any processors?
Yes — 21 processors appear in both documents, including the Intel Xeon Gold 6448Y. That makes a like-for-like build possible on either server.
Where these figures come from. T560: Dell PowerEdge T560 Technical Guide (December 2024, Rev. A04) (Dell document). ST650 V3: Lenovo ThinkSystem ST650 V3 Server Product Guide (no revision date printed in text (related-publication timestamps run to 2026-07-14)) (Lenovo document). Each claim on this page is derived from those documents, checked page by page on the two data sheets, and carries no pricing.
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