UK’s trusted IT infrastructure partner since 2003
sales@servnetuk.com
0800 987 4111
Servnet
FinanceToolsConfiguratorGet in Touch
Head-to-head · every figure from the vendor documents

HPE DL345 Gen11 vs Lenovo SR655 V3

A specification-by-specification comparison of the HPE ProLiant DL345 Gen11 and the Lenovo ThinkSystem SR655 V3, built from HPE’s and Lenovo’s own documents. None of the headline measures favour the DL345 Gen11; 4 favour the SR655 V3, and 37 processors appear in both lists.

Bottom line. SR655 V3 leads on storage density, AI and acceleration, network throughput. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.

HPE ProLiant DL345 Gen11 2U front with the HPE bezel over the drive cages, and the iLO service port and USB port on the right ear
HPE ProLiant
DL345 Gen11
2U Rack1 socket12 DIMMHPE iLO 6
Configure the DL345 Gen11 →Full data sheet
VS
Lenovo ThinkSystem SR655 V3 2U chassis from the front: 24 numbered 2.5-inch hot-swap bays, VGA port on the left, USB ports on the right
Lenovo ThinkSystem
SR655 V3
2U Rack1 socket12 DIMMXClarity Controller 2
Configure the SR655 V3 →Full data sheet
01 — Scoreboard

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.

1
Processor sockets
1
160
Cores, fully populated
Largest listed processor × its socket count
160
3 TB
Memory ceiling
As each document states it
3 TB
36
Drive bays
Higher40
Up to 4
Accelerators
HigherUp to 8
2,200 W
Largest power supply
Higher2,600 W
2U Rack
Rack height
2U Rack
200 GbE class
Fastest network option
Higher400 GbE class
02 — Verdict

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 DL345 Gen11 if…

  • A 2U drive envelope behind one processor: 34 SFF, 20 LFF or 36 E3.S bays, because HPE adds mid-tray and rear cages to the front drive boxes.

Choose the SR655 V3 if…

  • Drive bays: 40 against 36 on the DL345 Gen11
  • Accelerators: Up to 8 against Up to 4 on the DL345 Gen11
  • Largest power supply: 2,600 W against 2,200 W on the DL345 Gen11
  • A whole 2U storage chassis on one processor: drive bays at the front, in the middle and at the rear reach 40 × 2.5-inch or 20 × 3.5-inch, and up to 32 of the 2.5-inch bays can be NVMe through switch adapters, or 24 when each drive needs its own x4 link.
03 — By workload

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.

VirtualisationDL345 Gen11: 160 cores with 3 TB. SR655 V3: 160 cores with 3 TB.Line ball
Databases & in-memoryMemory ceiling 3 TB against 3 TB, across 12 and 12 DIMM slots.Line ball
Storage density36 bays in 2U against 40 in 2U.SR655 V3
AI & acceleration4 accelerators against 8 in the vendor documents.SR655 V3
Network throughputFastest card listed: 200 GbE class against 400 GbE class.SR655 V3
04 — Specifications

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.

SpecificationDL345 Gen11SR655 V3
Processors listed4045

Memory

SpecificationDL345 Gen11SR655 V3
Memory typesRDIMM DDR5-6400 (5th Generation AMD EPYC) · RDIMM DDR5-4800 (4th Generation AMD EPYC)RDIMM DDR5-6400 (5th Gen EPYC) · RDIMM DDR5-4800 (4th Gen EPYC) · 9x4 RDIMM · 3DS RDIMM DDR5-6400

Storage

Bay counts are the maximum each document states, including rear and mid-chassis positions.

SpecificationDL345 Gen11SR655 V3
Maximum bays3640
Documented layouts1824
Bay sizes3.5-inch · 2.5-inch · E3.S3.5-inch · 2.5-inch
Boot devicesHPE NS204i-u Gen11 NVMe Hot Plug Boot Optimized Storage Device (2 x 480GB M.2 NVMe, hardware RAID1) · HPE NS204i-u v2 480GB NVMe Hot Plug Boot Optimized Storage Device · HPE NS204i-u v2 960GB NVMe Hot Plug Boot Optimized Storage Device + 3 moreM.2 SATA/NVMe 2-Bay Enablement Kit (4Y37A09738) · M.2 SATA/x4 NVMe 2-Bay Adapter (4Y37A79663) · M.2 NVMe 2-Bay RAID Adapter (4Y37A09750) + 1 more
Storage controllers1322

Accelerators & I/O

SpecificationDL345 Gen11SR655 V3
Accelerators supportedUp to 4Up to 8
Double-wide cards listed07
OCP slots21
PCIe network slots610
Network cards listed2532

Power & platform

SpecificationDL345 Gen11SR655 V3
Power-supply options610
Output range500–2,200 W750–2,600 W
ManagementHPE iLO 6XClarity Controller 2
Chassis depthVendors measure depth differently — see each data sheet8SFF / 24SFF / EDSFF chassis: 64.6 cm (25.45 in)766 mm
05 — The data

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.

DL345 Gen11: processors by cores and TDP

HPE ProLiant DL345 Gen11 processors081624324048566472808896104112120128136144152160100 W150 W200 W250 W300 W350 W400 WCores per processorAMD EPYC 9845 — 160 cores · 390 W · 2.1 GHz base · 320 MB cache · DDR5-6400AMD EPYC 9825 — 144 cores · 390 W · 2.2 GHz base · 384 MB cache · DDR5-6400AMD EPYC 9745 — 128 cores · 400 W · 2.4 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9655P — 96 cores · 400 W · 2.6 GHz base · 384 MB cache · DDR5-6400AMD EPYC 9645 — 96 cores · 320 W · 2.3 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9565 — 72 cores · 400 W · 3.15 GHz base · 384 MB cache · DDR5-6400AMD EPYC 9575F — 64 cores · 400 W · 3.3 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9555P — 64 cores · 360 W · 3.2 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9535 — 64 cores · 300 W · 2.4 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9475F — 48 cores · 400 W · 3.65 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9455P — 48 cores · 300 W · 3.15 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9365 — 36 cores · 300 W · 3.4 GHz base · 192 MB cache · DDR5-6400AMD EPYC 9375F — 32 cores · 320 W · 3.8 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9355P — 32 cores · 280 W · 3.55 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9335 — 32 cores · 210 W · 3 GHz base · 128 MB cache · DDR5-6400AMD EPYC 9275F — 24 cores · 320 W · 4.1 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9255 — 24 cores · 200 W · 3.25 GHz base · 128 MB cache · DDR5-6400AMD EPYC 9175F — 16 cores · 320 W · 4.2 GHz base · 512 MB cache · DDR5-6400AMD EPYC 9135 — 16 cores · 200 W · 3.65 GHz base · 64 MB cache · DDR5-6400AMD EPYC 9115 — 16 cores · 125 W · 2.6 GHz base · 64 MB cache · DDR5-6400AMD EPYC 9015 — 8 cores · 125 W · 3.6 GHz base · 64 MB cache · DDR5-6400AMD EPYC 9754 — 128 cores · 360 W · 2.25 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9734 — 112 cores · 340 W · 2.2 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9684X — 96 cores · 400 W · 2.55 GHz base · 1150 MB cache · DDR5-4800AMD EPYC 9654P — 96 cores · 360 W · 2.4 GHz base · 384 MB cache · DDR5-4800AMD EPYC 9634 — 84 cores · 290 W · 2.25 GHz base · 384 MB cache · DDR5-4800AMD EPYC 9554P — 64 cores · 360 W · 3.1 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9534 — 64 cores · 280 W · 2.45 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9474F — 48 cores · 360 W · 3.6 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9454P — 48 cores · 290 W · 2.75 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9374F — 32 cores · 320 W · 3.85 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9384X — 32 cores · 320 W · 3.1 GHz base · 768 MB cache · DDR5-4800AMD EPYC 9354P — 32 cores · 280 W · 3.25 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9334 — 32 cores · 210 W · 2.7 GHz base · 128 MB cache · DDR5-4800AMD EPYC 9274F — 24 cores · 320 W · 4.05 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9254 — 24 cores · 200 W · 2.9 GHz base · 128 MB cache · DDR5-4800AMD EPYC 9224 — 24 cores · 200 W · 2.5 GHz base · 64 MB cache · DDR5-4800AMD EPYC 9174F — 16 cores · 320 W · 4.1 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9184X — 16 cores · 320 W · 3.55 GHz base · 768 MB cache · DDR5-4800AMD EPYC 9124 — 16 cores · 200 W · 3 GHz base · 64 MB cache · DDR5-4800EPYC 9845160 cores · 2.4 W/core — top SKU and most efficient
AMD EPYC 9005 21AMD EPYC 9004 19Bubble size = L3 cache · hover a bubble for the full SKU

SR655 V3: processors by cores and TDP

Lenovo ThinkSystem SR655 V3 processors081624324048566472808896104112120128136144152160100 W150 W200 W250 W300 W350 W400 WCores per processorAMD EPYC 9845 — 160 cores / 320 threads · 390 W · 2.1 GHz base · 320 MB cache · DDR5-6400AMD EPYC 9825 — 144 cores / 288 threads · 390 W · 2.2 GHz base · 384 MB cache · DDR5-6400AMD EPYC 9745 — 128 cores / 256 threads · 400 W · 2.4 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9655 — 96 cores / 192 threads · 400 W · 2.6 GHz base · 384 MB cache · DDR5-6400AMD EPYC 9655P — 96 cores / 192 threads · 400 W · 2.6 GHz base · 384 MB cache · DDR5-6400AMD EPYC 9645 — 96 cores / 192 threads · 320 W · 2.3 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9565 — 72 cores / 144 threads · 400 W · 3.15 GHz base · 384 MB cache · DDR5-6400AMD EPYC 9575F — 64 cores / 128 threads · 400 W · 3.3 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9555 — 64 cores / 128 threads · 360 W · 3.2 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9555P — 64 cores / 128 threads · 360 W · 3.2 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9535 — 64 cores / 128 threads · 300 W · 2.4 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9475F — 48 cores / 96 threads · 400 W · 3.65 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9455 — 48 cores / 96 threads · 300 W · 3.15 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9455P — 48 cores / 96 threads · 300 W · 3.15 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9365 — 36 cores / 72 threads · 300 W · 3.4 GHz base · 192 MB cache · DDR5-6400AMD EPYC 9375F — 32 cores / 64 threads · 320 W · 3.8 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9355 — 32 cores / 64 threads · 280 W · 3.55 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9355P — 32 cores / 64 threads · 280 W · 3.55 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9335 — 32 cores / 64 threads · 210 W · 3 GHz base · 128 MB cache · DDR5-6400AMD EPYC 9275F — 24 cores / 48 threads · 320 W · 4.1 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9255 — 24 cores / 48 threads · 200 W · 3.25 GHz base · 128 MB cache · DDR5-6400AMD EPYC 9175F — 16 cores / 32 threads · 320 W · 4.2 GHz base · 512 MB cache · DDR5-6400AMD EPYC 9135 — 16 cores / 32 threads · 200 W · 3.65 GHz base · 64 MB cache · DDR5-6400AMD EPYC 9115 — 16 cores / 32 threads · 125 W · 2.6 GHz base · 64 MB cache · DDR5-6400AMD EPYC 9015 — 8 cores / 16 threads · 125 W · 3.6 GHz base · 64 MB cache · DDR5-6400AMD EPYC 9754 — 128 cores / 256 threads · 360 W · 2.25 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9734 — 112 cores / 224 threads · 340 W · 2.2 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9654 — 96 cores / 192 threads · 360 W · 2.4 GHz base · 384 MB cache · DDR5-4800AMD EPYC 9654P — 96 cores / 192 threads · 360 W · 2.4 GHz base · 384 MB cache · DDR5-4800AMD EPYC 9634 — 84 cores / 168 threads · 290 W · 2.25 GHz base · 384 MB cache · DDR5-4800AMD EPYC 9554 — 64 cores / 128 threads · 360 W · 3.1 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9554P — 64 cores / 128 threads · 360 W · 3.1 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9534 — 64 cores / 128 threads · 280 W · 2.45 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9474F — 48 cores / 96 threads · 360 W · 3.6 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9454 — 48 cores / 96 threads · 290 W · 2.75 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9454P — 48 cores / 96 threads · 290 W · 2.75 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9374F — 32 cores / 64 threads · 320 W · 3.85 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9354 — 32 cores / 64 threads · 280 W · 3.25 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9354P — 32 cores / 64 threads · 280 W · 3.25 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9334 — 32 cores / 64 threads · 210 W · 2.7 GHz base · 128 MB cache · DDR5-4800AMD EPYC 9274F — 24 cores / 48 threads · 320 W · 4.05 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9224 — 24 cores / 48 threads · 200 W · 2.5 GHz base · 64 MB cache · DDR5-4800AMD EPYC 9254 — 24 cores / 48 threads · 200 W · 2.9 GHz base · 128 MB cache · DDR5-4800AMD EPYC 9174F — 16 cores / 32 threads · 320 W · 4.1 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9124 — 16 cores / 32 threads · 200 W · 3 GHz base · 64 MB cache · DDR5-4800EPYC 9845160 cores · 2.4 W/core — top SKU and most efficient
AMD EPYC 9005 25AMD EPYC 9004 20Bubble size = L3 cache · hover a bubble for the full SKU

DL345 Gen11: memory with every slot filled

16 GB192 GB32 GB384 GB64 GB768 GB96 GB1.1 TB128 GB1.5 TB256 GB3 TB12 slots · 12 per processor · each tick = one DIMM

SR655 V3: memory with every slot filled

16 GB192 GB32 GB384 GB64 GB768 GB96 GB1.1 TB128 GB1.5 TB256 GB3 TB12 slots · 12 per processor · each tick = one DIMM

DL345 Gen11: drive bays

Front panel

36 × EDSFF NVMe at the front — 36 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

SR655 V3: drive bays

Front panel

24 × 2.5" SAS/SATA at the front — 24 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

DL345 Gen11: power supplies

05001000150020002500500 W Platinum — HPE 500W Flex Slot Platinum Hot Plug Low Halogen Power Supply Kit. 94% power efficiency. Rated steady-state 500W at 100 VAC / 240 VAC (240 VAC input for China only). BTU max 1979 (100 VAC) / 1911 (200 VAC) / 1965 (240 VAC, China).500Platinum800 W Platinum — HPE 800W Flex Slot Platinum Hot Plug Low Halogen Power Supply Kit. 94% power efficiency. BTU max 3207 (100 VAC) / 3071 (200 VAC) / 3112 (240 VAC, China).800Platinum1000 W Titanium — HPE 1000W Flex Slot Titanium Hot Plug (Low Halogen) Power Supply Kit. 96% power efficiency; named in the EU ErP Lot 9 compliant list.1000Titanium1600 W null — HPE 1600W Flex Slot -48VDC Hot Plug Power Supply Kit. Standard Features prose says 'Available in 94% Power Efficiency. 200-240VAC power input only.' No Platinum/Titanium label is printed. Requires the HPE 1600W -48VDC Power Cable Lug Kit (P36877-B21).1600DC1600 W Platinum — HPE 1600W Flex Slot Platinum Hot Plug Low Halogen Power Supply Kit. 94% power efficiency. High-line only: 200-240 VAC. BTU max 5918 (200 VAC) / 5884 (240 VAC, China).1600Platinum2200 W Titanium — HPE 1800W-2200W Flex Slot Titanium Hot Plug Power Supply Kit (rated 1800W at low line / 2200W at high line as printed in the SKU name; the document gives no separate efficiency percentage). Named in the EU ErP Lot 9 96%-efficient list.18002200TitaniumWatts · dashed line = output at 100–120 V low line
AC−48 V DC

SR655 V3: power supplies

050010001500200025003000750 W Platinum — AC input power - 80 PLUS Platinum efficiency; input 230V/115V; max quantity 2750Platinum750 W Titanium — AC input power - 80 PLUS Titanium efficiency; input 230V; max quantity 2750Titanium750 W Titanium — AC input power - 80 PLUS Titanium efficiency; input 230V; max quantity 2750Titanium1100 W n/a (DC input) — -48V DC input power; input -48V DC; max quantity 21100DC1100 W Platinum — AC input power - 80 PLUS Platinum efficiency; input 230V/115V; max quantity 21100Platinum1100 W Titanium — AC input power - 80 PLUS Titanium efficiency; input 230V; max quantity 21100Titanium1800 W Platinum — AC input power - 80 PLUS Platinum efficiency; input 230V; max quantity 21800Platinum1800 W Titanium — AC input power - 80 PLUS Titanium efficiency; input 230V; max quantity 21800Titanium2400 W Platinum — input 230V; max quantity 22400Platinum2600 W Titanium — AC input power - 80 PLUS Titanium efficiency; input 230V; max quantity 22600TitaniumWatts · dashed line = output at 100–120 V low line
AC−48 V DC
06 — Like for like

37 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: 3 more are exclusive to the DL345 Gen11 and 8 to the SR655 V3.

ProcessorCoresTDP
AMD EPYC 9845160390 W
AMD EPYC 9825144390 W
AMD EPYC 9745128400 W
AMD EPYC 9754128360 W
AMD EPYC 9734112340 W
AMD EPYC 964596320 W
AMD EPYC 9655P96400 W
AMD EPYC 9654P96360 W
AMD EPYC 963484290 W
AMD EPYC 956572400 W
AMD EPYC 953564300 W
AMD EPYC 9575F64400 W
07 — Questions

DL345 Gen11 vs SR655 V3, answered

Is the DL345 Gen11 or the SR655 V3 the faster server?

Neither document publishes benchmark results, so this page compares what they do state. The DL345 Gen11 lists 40 processors up to 160 cores at 400 W; the SR655 V3 lists 45 up to 160 cores at 400 W. Fully populated that is 160 cores against 160.

Which holds more memory?

The DL345 Gen11 has 12 DIMM slots and a stated ceiling of 3.0 TB. The SR655 V3 has 12 and 3 TB.

Which takes more drives?

DL345 Gen11: 36 bays across 18 documented layouts. SR655 V3: 40 across 24. Counts include rear and mid-chassis positions where the vendor documents them.

Can either take GPUs?

DL345 Gen11: up to 4 accelerators, 0 double-wide cards listed. SR655 V3: up to 8, 7 double-wide listed.

Do they share any processors?

Yes — 37 processors appear in both documents, including the AMD EPYC 9845. That makes a like-for-like build possible on either server.

Where these figures come from. DL345 Gen11: HPE ProLiant DL345 Gen11 QuickSpecs (Version 40 - August 3, 2026; footer a50004298enw V40 03-August-2026) (HPE document). SR655 V3: Lenovo ThinkSystem SR655 V3 Server Product Guide (publication date is not printed in the text export; guide contains 'New as of July 2026' notes) (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.

Other comparisons in this class

R570 vs DL345 Gen11Dell vs HPER570 vs SR655 V3Dell vs LenovoR7615 vs DL345 Gen11Dell vs HPER7615 vs SR655 V3Dell vs LenovoR7715 vs DL345 Gen11Dell vs HPER7715 vs SR655 V3Dell vs LenovoDL340 Gen12 vs SR655 V3HPE vs LenovoDL340e Gen12 vs SR655 V3HPE vs Lenovo

Talk to a UK specialist

Get expert advice or a no-obligation quote — servers, storage, networking, maintenance, finance and cloud. We reply the same working day.

or call 0800 987 4111