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

HPE DL340 Gen12 vs HPE DL340e Gen12

A specification-by-specification comparison of the HPE ProLiant Compute DL340 Gen12 and the HPE ProLiant Compute DL340e Gen12, built from HPE’s own documents. 3 headline measures favour the DL340 Gen12 and none favour the DL340e Gen12, and 30 processors appear in both lists.

Bottom line. DL340 Gen12 leads on virtualisation, databases and in-memory work, storage density, AI and acceleration. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.

HPE ProLiant Compute DL340 Gen12 Front GPU chassis: twelve E3.S drives in the centre box between two vented GPU cages, badge on the right ear
HPE ProLiant
DL340 Gen12
2U Rack1 socket16 DIMMHPE iLO 7
Configure the DL340 Gen12 →Full data sheet
VS
HPE ProLiant Compute DL340e Gen12 with the 24LFF kit: twelve front 3.5-inch bays and the second 12-bay cage raised on its handle
HPE ProLiant
DL340e Gen12
2U Rack1 socket16 DIMMHPE iLO 7
Configure the DL340e Gen12 →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
144
Cores, fully populated
Largest listed processor × its socket count
144
4 TBHigher
Memory ceiling
As each document states it
2 TB
36Higher
Drive bays
34
Up to 4Higher
Accelerators
None listed
3,200 W
Largest power supply
3,200 W
2U Rack
Rack height
2U Rack
400 GbE class
Fastest network option
400 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 DL340 Gen12 if…

  • Memory ceiling: 4 TB against 2 TB on the DL340e Gen12
  • Drive bays: 36 against 34 on the DL340e Gen12
  • Accelerators: Up to 4 against None listed on the DL340e Gen12
  • Three factory chassis on one single-socket platform: SFF for up to 24 × 2.5-inch or 36 × E3.S drives, LFF for 12 × 3.5-inch, and a Front GPU model that HPE documents with four double-wide accelerators.

Choose the DL340e Gen12 if…

  • Up to 24 × 3.5-inch SAS/SATA bays in 2U, and HPE’s capacity table fills them with 26 TB disks for 624 TB raw.
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.

VirtualisationDL340 Gen12: 144 cores with 4 TB. DL340e Gen12: 144 cores with 2 TB.DL340 Gen12
Databases & in-memoryMemory ceiling 4 TB against 2 TB, across 16 and 16 DIMM slots.DL340 Gen12
Storage density36 bays in 2U against 34 in 2U.DL340 Gen12
AI & acceleration4 accelerators against no in the vendor documents.DL340 Gen12
Network throughputFastest card listed: 400 GbE class against 400 GbE class.Line ball
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.

SpecificationDL340 Gen12DL340e Gen12
Processors listed3330

Memory

SpecificationDL340 Gen12DL340e Gen12
Largest module listed256 GB128 GB
Memory typesRDIMM DDR5-6400RDIMM DDR5-6400 (HPE DDR5 Smart Memory, Registered)

Storage

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

SpecificationDL340 Gen12DL340e Gen12
Maximum bays3634
Documented layouts73
Bay sizes2.5-inch · E3.S · 3.5-inch3.5-inch · E3.S
Storage controllers128

Accelerators & I/O

SpecificationDL340 Gen12DL340e Gen12
Accelerators supportedUp to 4None listed
OCP slots42
PCIe network slots26
Network cards listed3023

Power & platform

SpecificationDL340 Gen12DL340e Gen12
Chassis depthVendors measure depth differently — see each data sheet8SFF/24SFF/EDSFF chassis 63.95 cm (25.18 in) deepLFF chassis: 80.65 cm / 32.36 in deep (8.75 x 44.80 x 80.65 cm H x W x D)
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.

DL340 Gen12: processors by cores and TDP

HPE ProLiant Compute DL340 Gen12 processors081624324048566472808896104112120128136144100 W150 W200 W250 W300 W350 WCores per processorIntel Xeon 6780E — 144 cores · 330 W · 2.2 GHz base · 108 MB cache · DDR5-6400Intel Xeon 6766E — 144 cores · 250 W · 1.9 GHz base · 108 MB cache · DDR5-6400Intel Xeon 6756E — 128 cores · 225 W · 1.8 GHz base · 96 MB cache · DDR5-6400Intel Xeon 6746E — 112 cores · 250 W · 2 GHz base · 96 MB cache · DDR5-5600Intel Xeon 6731E — 96 cores · 250 W · 2.2 GHz base · 96 MB cache · DDR5-5600Intel Xeon 6740E — 96 cores · 250 W · 2.4 GHz base · 96 MB cache · DDR5-6400Intel Xeon 6710E — 64 cores · 205 W · 2.4 GHz base · 96 MB cache · DDR5-5600Intel Xeon 6787P — 86 cores · 350 W · 2 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6781P — 80 cores · 350 W · 2 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6767P — 64 cores · 350 W · 2.4 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6774P — 64 cores · 350 W · 2.5 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6761P — 64 cores · 350 W · 2.5 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6760P — 64 cores · 330 W · 2.2 GHz base · 320 MB cache · DDR5-6400Intel Xeon 6747P — 48 cores · 330 W · 2.7 GHz base · 288 MB cache · DDR5-6400Intel Xeon 6741P — 48 cores · 300 W · 2.5 GHz base · 288 MB cache · DDR5-6400Intel Xeon 6740P — 48 cores · 270 W · 2.1 GHz base · 288 MB cache · DDR5-6400Intel Xeon 6736P — 36 cores · 205 W · 2 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6732P — 32 cores · 350 W · 3.8 GHz baseIntel Xeon 6745P — 32 cores · 300 W · 3.1 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6737P — 32 cores · 270 W · 2.9 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6730P — 32 cores · 250 W · 2.5 GHz base · 288 MB cache · DDR5-6400Intel Xeon 6731P — 32 cores · 245 W · 2.5 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6530P — 32 cores · 225 W · 2.3 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6527P — 24 cores · 255 W · 3 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6521P — 24 cores · 225 W · 2.6 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6520P — 24 cores · 210 W · 2.4 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6725P — 16 cores · 235 W · 3.7 GHz base · 192 MB cache · DDR5-6400Intel Xeon 6517P — 16 cores · 190 W · 3.2 GHz base · 72 MB cache · DDR5-6400Intel Xeon 6515P — 16 cores · 150 W · 2.3 GHz base · 72 MB cache · DDR5-6400Intel Xeon 6511P — 16 cores · 150 W · 2.3 GHz base · 72 MB cache · DDR5-6400Intel Xeon 6505P — 12 cores · 150 W · 2.2 GHz base · 48 MB cache · DDR5-6400Intel Xeon 6507P — 8 cores · 150 W · 3.5 GHz base · 48 MB cache · DDR5-6400Intel Xeon 6503P — 8 cores · 135 W · 2.8 GHz base · 48 MB cache · DDR5-64006780E144 cores — the top SKU6766E1.7 W/core — most efficient
Xeon 6 E-core 7Xeon 6 P-core 26Bubble size = L3 cache · hover a bubble for the full SKU

DL340e Gen12: processors by cores and TDP

HPE ProLiant Compute DL340e Gen12 processors081624324048566472808896104112120128136144150 W200 W250 W300 W350 WCores per processorIntel Xeon 6780E — 144 cores · 330 W · 2.2 GHz base · 108 MB cache · DDR5-6400Intel Xeon 6766E — 144 cores · 250 W · 1.9 GHz base · 108 MB cache · DDR5-6400Intel Xeon 6756E — 128 cores · 225 W · 1.8 GHz base · 96 MB cache · DDR5-6400Intel Xeon 6746E — 112 cores · 250 W · 2 GHz base · 96 MB cache · DDR5-5600Intel Xeon 6731E — 96 cores · 250 W · 2.2 GHz base · 96 MB cache · DDR5-5600Intel Xeon 6740E — 96 cores · 250 W · 2.4 GHz base · 96 MB cache · DDR5-6400Intel Xeon 6710E — 64 cores · 205 W · 2.4 GHz base · 96 MB cache · DDR5-5600Intel Xeon 6787P — 86 cores · 350 W · 2 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6781P — 80 cores · 350 W · 2 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6767P — 64 cores · 350 W · 2.4 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6761P — 64 cores · 350 W · 2.5 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6760P — 64 cores · 330 W · 2.2 GHz base · 320 MB cache · DDR5-6400Intel Xeon 6747P — 48 cores · 330 W · 2.7 GHz base · 288 MB cache · DDR5-6400Intel Xeon 6741P — 48 cores · 300 W · 2.5 GHz base · 288 MB cache · DDR5-6400Intel Xeon 6740P — 48 cores · 270 W · 2.1 GHz base · 288 MB cache · DDR5-6400Intel Xeon 6736P — 36 cores · 205 W · 2 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6732P — 32 cores · 350 W · 3.8 GHz base · DDR5-6400Intel Xeon 6745P — 32 cores · 300 W · 3.1 GHz base · 336 MB cache · DDR5-6400Intel Xeon 6737P — 32 cores · 270 W · 2.9 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6730P — 32 cores · 250 W · 2.5 GHz base · 288 MB cache · DDR5-6400Intel Xeon 6731P — 32 cores · 245 W · 2.5 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6530P — 32 cores · 225 W · 2.3 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6527P — 24 cores · 255 W · 3 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6521P — 24 cores · 225 W · 2.6 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6520P — 24 cores · 210 W · 2.4 GHz base · 144 MB cache · DDR5-6400Intel Xeon 6517P — 16 cores · 190 W · 3.2 GHz base · 72 MB cache · DDR5-6400Intel Xeon 6515P — 16 cores · 150 W · 2.3 GHz base · 72 MB cache · DDR5-6400Intel Xeon 6511P — 16 cores · 150 W · 2.3 GHz base · 72 MB cache · DDR5-6400Intel Xeon 6505P — 12 cores · 150 W · 2.2 GHz base · 48 MB cache · DDR5-6400Intel Xeon 6507P — 8 cores · 150 W · 3.5 GHz base · 48 MB cache · DDR5-64006780E144 cores — the top SKU6766E1.7 W/core — most efficient
Xeon 6 E-core 7Xeon 6 P-core 23Bubble size = L3 cache · hover a bubble for the full SKU

DL340 Gen12: memory with every slot filled

16 GB256 GB32 GB512 GB64 GB1 TB96 GB1.5 TB128 GB2 TB256 GB4 TB16 slots · 16 per processor · each tick = one DIMM

DL340e Gen12: memory with every slot filled

16 GB256 GB32 GB512 GB64 GB1 TB96 GB1.5 TB128 GB2 TB16 slots · 16 per processor · each tick = one DIMM

DL340 Gen12: drive bays

Front panel

8 × 2.5" NVMe at the front — 8 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

DL340e Gen12: drive bays

Front panel

24 × 3.5" SAS/SATA at the front — 24 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

DL340 Gen12: power supplies

0500100015002000250030003500800 W Platinum — HPE M-CRPS family (Modular Common Redundant Power Supply). Listed only in the Core Options power-supply list, not in the Standard Features power-supply prose.800Platinum1000 W Titanium — HPE M-CRPS family; 96% efficiency; single-output, EU ErP Lot 9 compliant. Rated 800W at 100-120 VAC, 1000W at 200-240 VAC, 1000W at 240 VDC (China only).1000Titanium1300 W null — HPE M-CRPS family; -48VDC input; no efficiency rating printed. Requires power cord P79842-B21 or power lug kit P79845-B21.1300DC1500 W Titanium — HPE M-CRPS family; 96% efficiency; single-output, EU ErP Lot 9 compliant. Rated 1000W at 100 VAC, 1100W at 110-120 VAC, 1500W at 200-240 VAC.1500Titanium2200 W null — HPE M-CRPS family; -48VDC input; no efficiency rating printed. Requires power cord P73874-B21 or power lug kit P79839-B21.2200DC2400 W Titanium — HPE M-CRPS family; 96% efficiency; single-output, EU ErP Lot 9 compliant. Rated 1200W at 100-127 VAC, 2400W at 200-240 VAC.2400Titanium3200 W Titanium — HPE M-CRPS family; 96% efficiency; single-output, EU ErP Lot 9 compliant. Rated 1600W at 100-127 VAC, 3200W at 200-240 VAC.3200TitaniumWatts · dashed line = output at 100–120 V low line
AC−48 V DC

DL340e Gen12: power supplies

0500100015002000250030003500800 W Platinum — HPE 800W M-CRPS Platinum Hot Plug Power Supply Kit. Listed only in the Step 2 'Power Supplies' option list - the Standard Features Power Supply prose omits it and states 'The above power supplies have a 96% efficiency', which covers only the 1000/1500/2400/3200W Titanium units. Step 2 prints the part number as 'P73190-B2' (trailing digit truncated in this document).800Platinum1000 W Titanium — HPE 1000W M-CRPS Titanium Hot Plug Power Supply Kit. Single-output, 96% efficient, named in the EU ErP Lot 9 compliant list. Output 800W at 100-120 VAC / 1000W at 200-240 VAC / 1000W at 240 VDC (China only). Step 2 prints 'P67240-B2'.1000Titanium1300 W null — HPE 1300W M-CRPS -48VDC Hot Plug Power Supply Kit. No efficiency rating printed. Listed only in the Step 2 option list. Step 2 prints 'P82412-B2'.1300DC1500 W Titanium — HPE 1500W M-CRPS Titanium Hot Plug Power Supply Kit. 96% efficient, EU ErP Lot 9 compliant. Output 1000W at 100 VAC / 1100W at 110-120 VAC / 1500W at 200-240 VAC. Step 2 prints 'P67244-B2'.1500Titanium2200 W null — HPE 2200W M-CRPS -48VDC Hot Plug Power Supply Kit. No efficiency rating printed. Listed only in the Step 2 option list. Step 2 prints 'P73210-B2'.2200DC2400 W Titanium — HPE 2400W M-CRPS Titanium Hot Plug Power Supply Kit. 96% efficient, EU ErP Lot 9 compliant. Output 1200W at 100-127 VAC / 2400W at 200-240 VAC (the Technical Specifications section prints two different low-line figures for this PSU: 1200W under 'Rated Steady-State Power' and 2400W in the second output table). Step 2 prints 'P67252-B2'.2400Titanium3200 W Titanium — HPE 3200W M-CRPS Titanium Hot Plug Power Supply Kit. 96% efficient, EU ErP Lot 9 compliant. Output 1600W at 100-127 VAC / 3200W at 200-240 VAC. Step 2 prints 'P67248-B2'.3200TitaniumWatts · dashed line = output at 100–120 V low line
AC−48 V DC
06 — Like for like

30 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 DL340 Gen12 and 0 to the DL340e Gen12.

ProcessorCoresTDP
Intel Xeon 6766E144250 W
Intel Xeon 6780E144330 W
Intel Xeon 6756E128225 W
Intel Xeon 6746E112250 W
Intel Xeon 6731E96250 W
Intel Xeon 6740E96250 W
Intel Xeon 6787P86350 W
Intel Xeon 6781P80350 W
Intel Xeon 6710E64205 W
Intel Xeon 6767P64350 W
Intel Xeon 6760P64330 W
Intel Xeon 6761P64350 W
07 — Questions

DL340 Gen12 vs DL340e Gen12, answered

Is the DL340 Gen12 or the DL340e Gen12 the faster server?

Neither document publishes benchmark results, so this page compares what they do state. The DL340 Gen12 lists 33 processors up to 144 cores at 350 W; the DL340e Gen12 lists 30 up to 144 cores at 350 W. Fully populated that is 144 cores against 144.

Which holds more memory?

The DL340 Gen12 has 16 DIMM slots and a stated ceiling of 4TB. The DL340e Gen12 has 16 and 2TB.

Which takes more drives?

DL340 Gen12: 36 bays across 7 documented layouts. DL340e Gen12: 34 across 3. Counts include rear and mid-chassis positions where the vendor documents them.

Can either take GPUs?

DL340 Gen12: up to 4 accelerators, 0 double-wide cards listed. DL340e Gen12: no accelerator option in its document.

Do they share any processors?

Yes — 30 processors appear in both documents, including the Intel Xeon 6766E. That makes a like-for-like build possible on either server.

Where these figures come from. DL340 Gen12: HPE ProLiant Compute DL340 Gen12 QuickSpecs (Version 15 - 08-September-2026) (HPE document). DL340e Gen12: HPE ProLiant Compute DL340e Gen12 QuickSpecs (Version 5 - August 3, 2026) (HPE 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

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