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Head-to-head · every figure from the vendor documents

HPE DL145 Gen11 vs Lenovo SE455 V3

A specification-by-specification comparison of the HPE ProLiant DL145 Gen11 and the Lenovo ThinkEdge SE455 V3, built from HPE’s and Lenovo’s own documents. 1 headline measure favours the DL145 Gen11, 4 favour the SE455 V3, and 12 processors appear in both lists.

Bottom line. DL145 Gen11 leads on virtualisation. SE455 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 DL145 Gen11 front without bezel: six E3.S NVMe drives, NS204i-u boot device, three PCIe slots, USB ports and a 700 W supply
HPE ProLiant
DL145 Gen11
2U Rack1 socket6 DIMMHPE iLO 6
Configure the DL145 Gen11 →Full data sheet
VS
Lenovo ThinkEdge SE455 V3 front: six full-height PCIe slots, OCP slot, front ports, four 2.5-inch hot-swap bays and two front power supplies
Lenovo ThinkSystem
SE455 V3
Edge1 socket6 DIMMXClarity Controller 2
Configure the SE455 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
84Higher
Cores, fully populated
Largest listed processor × its socket count
64
0.75 TB
Memory ceiling
As each document states it
0.75 TB
6
Drive bays
Higher8
Up to 3
Accelerators
HigherUp to 6
1,000 W
Largest power supply
Higher1,800 W
25 GbE class
Fastest network option
Higher200 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 DL145 Gen11 if…

  • Cores, fully populated: 84 against 64 on the SE455 V3
  • Up to 84 cores in one socket (EPYC 8635P), with every processor in the range at a default TDP of 225 W or less.

Choose the SE455 V3 if…

  • Drive bays: 8 against 6 on the DL145 Gen11
  • Accelerators: Up to 6 against Up to 3 on the DL145 Gen11
  • Largest power supply: 1,800 W against 1,000 W on the DL145 Gen11
  • At 440 mm deep, with rail kits for two-post, 600 mm and 1000 mm racks, it is shorter than a conventional rack server and built for tight spaces.
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.

VirtualisationDL145 Gen11: 84 cores with 0.75 TB. SE455 V3: 64 cores with 0.75 TB.DL145 Gen11
Databases & in-memoryMemory ceiling 0.75 TB against 0.75 TB, across 6 and 6 DIMM slots.Line ball
Storage density6 bays in 2U against 8 in Edge.SE455 V3
AI & acceleration3 accelerators against 6 in the vendor documents.SE455 V3
Network throughputFastest card listed: 25 GbE class against 200 GbE class.SE455 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.

SpecificationDL145 Gen11SE455 V3
Processors listed1912
Most cores per processor8464
Highest processor TDP225 W200 W
Processor familiesAMD EPYC 8004 · AMD EPYC 8005AMD EPYC 8004

Memory

SpecificationDL145 Gen11SE455 V3
Fastest rated speed6,400 MT/s4,800 MT/s
Memory typesRDIMM DDR5-4800 · RDIMM DDR5-6400RDIMM DDR5-4800 (10x4 RDIMM, x8 RDIMM; 128GB 5600 runs at 4800)

Storage

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

SpecificationDL145 Gen11SE455 V3
Maximum bays68
Documented layouts34
Bay sizes2.5-inch · E3.S2.5-inch
Boot devicesHPE NS204i-u Gen11 NVMe Hot Plug Boot Optimized Storage Device · HPE NS204i-u v2 960GB NVMe Hot Plug Boot Optimized Storage Device · HPE NS204i-u v2 960GB NVMe SED Hot Plug Boot Optimized Storage Device + 1 moreThinkSystem M.2 SATA/x4 NVMe 2-Bay Adapter (BVUY) - NVMe via onboard port; SATA only with RAID 5350-8i; RAID via separate adapter (5350-8i SATA / 540-8i NVMe) · ThinkSystem M.2 RAID B540i-2i SATA/NVMe Adapter (BZPA) - integrated Broadcom RAID 0/1
Storage controllers75

Accelerators & I/O

SpecificationDL145 Gen11SE455 V3
Accelerators supportedUp to 3Up to 6
PCIe network slots36
Network cards listed1626

Power & platform

SpecificationDL145 Gen11SE455 V3
Power-supply options34
Output range700–1,000 W1,100–1,800 W
Input types−48 V DC · ACAC · −48 V DC
ManagementHPE iLO 6XClarity Controller 2
Chassis depthVendors measure depth differently — see each data sheetshort-depth (edge): 40.66 cm (16 in) deep without Bezel Filter440 mm (438 mm from the EIA flange)
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.

DL145 Gen11: processors by cores and TDP

HPE ProLiant DL145 Gen11 processors081624324048566472808850 W100 W150 W200 W250 WCores per processorAMD EPYC 8534P — 64 cores · 200 W · 2.3 GHz base · 128 MB cache · DDR5-4800AMD EPYC 8534PN — 64 cores · 175 W · 2 GHz base · 128 MB cache · DDR5-4800AMD EPYC 8434P — 48 cores · 200 W · 2.5 GHz base · 128 MB cache · DDR5-4800AMD EPYC 8434PN — 48 cores · 155 W · 2 GHz base · 128 MB cache · DDR5-4800AMD EPYC 8324P — 32 cores · 180 W · 2.65 GHz base · 128 MB cache · DDR5-4800AMD EPYC 8324PN — 32 cores · 130 W · 2.05 GHz base · 128 MB cache · DDR5-4800AMD EPYC 8224P — 24 cores · 160 W · 2.55 GHz base · 64 MB cache · DDR5-4800AMD EPYC 8224PN — 24 cores · 120 W · 2 GHz base · 64 MB cache · DDR5-4800AMD EPYC 8124P — 16 cores · 125 W · 2.45 GHz base · 64 MB cache · DDR5-4800AMD EPYC 8124PN — 16 cores · 100 W · 2 GHz base · 64 MB cache · DDR5-4800AMD EPYC 8024P — 8 cores · 90 W · 2.4 GHz base · 32 MB cache · DDR5-4800AMD EPYC 8024PN — 8 cores · 80 W · 2.05 GHz base · 32 MB cache · DDR5-4800AMD EPYC 8635P — 84 cores · 225 W · 1.6 GHz base · 384 MB cache · DDR5-6400AMD EPYC 8535P — 64 cores · 210 W · 2 GHz base · 256 MB cache · DDR5-6400AMD EPYC 8435P — 48 cores · 200 W · 2.45 GHz base · 256 MB cache · DDR5-6400AMD EPYC 8325P — 32 cores · 175 W · 2.7 GHz base · 256 MB cache · DDR5-6400AMD EPYC 8225P — 24 cores · 160 W · 2.95 GHz base · 128 MB cache · DDR5-6400AMD EPYC 8125P — 16 cores · 125 W · 2.65 GHz base · 128 MB cache · DDR5-6400AMD EPYC 8025P — 8 cores · 95 W · 2.9 GHz base · 64 MB cache · DDR5-6400EPYC 8635P84 cores · 2.7 W/core — top SKU and most efficient
AMD EPYC 8004 12AMD EPYC 8005 7Bubble size = L3 cache · hover a bubble for the full SKU

SE455 V3: processors by cores and TDP

Lenovo ThinkEdge SE455 V3 processors081624324048566450 W100 W150 W200 WCores per processorAMD EPYC 8534P — 64 cores / 128 threads · 200 W · 2.3 GHz base · 128 MB cache · DDR5-4800AMD EPYC 8534PN — 64 cores / 128 threads · 175 W · 2 GHz base · 128 MB cache · DDR5-4800AMD EPYC 8434P — 48 cores / 96 threads · 200 W · 2.5 GHz base · 128 MB cache · DDR5-4800AMD EPYC 8434PN — 48 cores / 96 threads · 155 W · 2 GHz base · 128 MB cache · DDR5-4800AMD EPYC 8324P — 32 cores / 64 threads · 180 W · 2.65 GHz base · 128 MB cache · DDR5-4800AMD EPYC 8324PN — 32 cores / 64 threads · 130 W · 2.05 GHz base · 128 MB cache · DDR5-4800AMD EPYC 8224P — 24 cores / 48 threads · 160 W · 2.55 GHz base · 64 MB cache · DDR5-4800AMD EPYC 8224PN — 24 cores / 48 threads · 120 W · 2 GHz base · 64 MB cache · DDR5-4800AMD EPYC 8124P — 16 cores / 32 threads · 125 W · 2.45 GHz base · 64 MB cache · DDR5-4800AMD EPYC 8124PN — 16 cores / 32 threads · 100 W · 2 GHz base · 64 MB cache · DDR5-4800AMD EPYC 8024P — 8 cores / 16 threads · 90 W · 2.4 GHz base · 32 MB cache · DDR5-4800AMD EPYC 8024PN — 8 cores / 16 threads · 80 W · 2.05 GHz base · 32 MB cache · DDR5-4800EPYC 8534P64 cores — the top SKUEPYC 8534PN2.7 W/core — most efficient
AMD EPYC 8004 12Bubble size = L3 cache · hover a bubble for the full SKU

DL145 Gen11: memory with every slot filled

16 GB96 GB32 GB192 GB64 GB384 GB96 GB576 GB128 GB768 GB6 slots · 6 per processor · each tick = one DIMM

SE455 V3: memory with every slot filled

16 GB96 GB32 GB192 GB64 GB384 GB96 GB576 GB128 GB768 GB6 slots · 6 per processor · each tick = one DIMM

DL145 Gen11: drive bays

Front panel

12 × EDSFF SAS/SATA + NVMe at the front — 12 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

SE455 V3: drive bays

Front panel

4 × 2.5" NVMe at the front — 4 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

DL145 Gen11: power supplies

05001000700 W null — HPE Flex Slot family; -48VDC input; no Platinum/Titanium label, notes say 'Available in 94% efficiency'; Low Halogen; reverse airflow. Core Options name: 'HPE ProLiant DL110 700W Flex Slot -48VDC Hot Plug Low Halogen Power Supply Kit'; Standard Features name: 'HPE ProLiant 700W Flex Slot -48VDC Hot Plug Low Halogen Reverse Air Flow Power Supply Kit'. 700 W at -40 VDC and -72 VDC; max 2593 BTU/hr at -40 VDC.700DC700 W Platinum — HPE Flex Slot family; 94% efficiency; Low Halogen; reverse airflow. Core Options name: 'HPE ProLiant DL110 700W Flex Slot Platinum Hot Plug Low Halogen AC Power Supply Kit'. 700 W at 100/200/240 VAC; max 2660 BTU/hr at 100 VAC.700Platinum1000 W Titanium — HPE Flex Slot family ('900W-1000W' unit): 900 W at 100 VAC, 1000 W at 200 VAC and 240 VAC; 96% efficiency; reverse airflow. Core Options name: 'HPE ProLiant DL110 900W-1000W Titanium Hot Plug Low Halogen AC Power Supply Kit' (no 'Flex Slot' in that name); Standard Features name: 'HPE ProLiant 900W-1000W Flex Slot Titanium Hot Plug Reverse Air Flow AC Power Supply Kit'. Max 3640 BTU/hr at 200 VAC.1000TitaniumWatts · dashed line = output at 100–120 V low line
AC−48 V DC

SE455 V3: power supplies

05001000150020001100 W — ThinkEdge 1100W -48V DC Gen2 (BMHA); max 2; efficiency rating not stated1100DC1100 W Platinum — ThinkEdge 1100W 230V/115V Platinum Gen2 (BMH8); max 21100Platinum1100 W Titanium — ThinkEdge 1100W 230V Titanium Gen2 (BRH9); front-mounted; max 21100Titanium1800 W Platinum — ThinkEdge 1800W 230V Platinum Gen2 (BMH9); max 2; may be required for L40/L40S1800PlatinumWatts · dashed line = output at 100–120 V low line
AC−48 V DC
06 — Like for like

12 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: 7 more are exclusive to the DL145 Gen11 and 0 to the SE455 V3.

ProcessorCoresTDP
AMD EPYC 8534P64200 W
AMD EPYC 8534PN64175 W
AMD EPYC 8434P48200 W
AMD EPYC 8434PN48155 W
AMD EPYC 8324P32180 W
AMD EPYC 8324PN32130 W
AMD EPYC 8224P24160 W
AMD EPYC 8224PN24120 W
AMD EPYC 8124P16125 W
AMD EPYC 8124PN16100 W
AMD EPYC 8024P890 W
AMD EPYC 8024PN880 W
07 — Questions

DL145 Gen11 vs SE455 V3, answered

Is the DL145 Gen11 or the SE455 V3 the faster server?

Neither document publishes benchmark results, so this page compares what they do state. The DL145 Gen11 lists 19 processors up to 84 cores at 225 W; the SE455 V3 lists 12 up to 64 cores at 200 W. Fully populated that is 84 cores against 64.

Which holds more memory?

The DL145 Gen11 has 6 DIMM slots and a stated ceiling of 768 GB. The SE455 V3 has 6 and 768 GB.

Which takes more drives?

DL145 Gen11: 6 bays across 3 documented layouts. SE455 V3: 8 across 4. Counts include rear and mid-chassis positions where the vendor documents them.

Can either take GPUs?

DL145 Gen11: up to 3 accelerators, 1 double-wide cards listed. SE455 V3: up to 6, 1 double-wide listed.

Do they share any processors?

Yes — 12 processors appear in both documents, including the AMD EPYC 8534P. That makes a like-for-like build possible on either server.

Where these figures come from. DL145 Gen11: HPE ProLiant DL145 Gen11 QuickSpecs (Version 22 - 08-Sep-2026) (HPE document). SE455 V3: Lenovo ThinkEdge SE455 V3 and SE455i V3 Servers 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.

Other comparisons in this class

XR5610 vs DL145 Gen11Dell vs HPEXR5610 vs SE455 V3Dell vs LenovoDL110 Gen12 vs SE455 V3HPE vs Lenovo

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