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

Dell R7715 vs HPE DL345 Gen12

A specification-by-specification comparison of the Dell PowerEdge R7715 and the HPE ProLiant Compute DL345 Gen12, built from Dell’s and HPE’s own documents. 1 headline measure favours the R7715, 1 favours the DL345 Gen12, and 17 processors appear in both lists.

Bottom line. R7715 leads on storage density. DL345 Gen12 leads on virtualisation. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.

Dell PowerEdge R7715 2U front with 40 EDSFF E3.S NVMe drive bays in five groups of eight between the left and right control panels
Dell PowerEdge
R7715
2U Rack1 socket24 DIMMiDRAC10
Configure the R7715 →Full data sheet
VS
HPE ProLiant Compute DL345 Gen12 in the 8LFF chassis: eight LFF bays, two SFF bays and an optical drive, with the model badge on the right ear
HPE ProLiant
DL345 Gen12
2U Rack1 socket24 DIMMHPE iLO 7
Configure the DL345 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
160
Cores, fully populated
Largest listed processor × its socket count
Higher192
6 TB
Memory ceiling
As each document states it
6 TB
40Higher
Drive bays
36
Up to 6
Accelerators
Up to 6
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 R7715 if…

  • Drive bays: 40 against 36 on the DL345 Gen12
  • Eight x16 Gen5 slots on one EPYC 9005 socket — twice the four Gen5 slots of the R7615 it succeeds.

Choose the DL345 Gen12 if…

  • Cores, fully populated: 192 against 160 on the R7715
  • Up to 192 cores behind a single socket, with the 500 W EPYC 9965 and 9755 on HPE’s list.
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.

VirtualisationR7715: 160 cores with 6 TB. DL345 Gen12: 192 cores with 6 TB.DL345 Gen12
Databases & in-memoryMemory ceiling 6 TB against 6 TB, across 24 and 24 DIMM slots.Line ball
Storage density40 bays in 2U against 36 in 2U.R7715
AI & acceleration6 accelerators against 6 in the vendor documents.Line ball
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.

SpecificationR7715DL345 Gen12
Processors listed1823
Most cores per processor160192
Highest processor TDP400 W500 W

Memory

SpecificationR7715DL345 Gen12
Memory typesRDIMM DDR5-6400 (runs at 5200 MT/s 1DPC / 4400-4000 MT/s 2DPC)RDIMM DDR5-6400 (HPE DDR5 Smart Memory, Registered, EC8) · RDIMM 3DS DDR5-6400 (256 GB Quad Rank x4)

Storage

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

SpecificationR7715DL345 Gen12
Maximum bays4036
Documented layouts108
Bay sizes2.5-inch · E3.S · 3.5-inch3.5-inch · 2.5-inch · E3.S
Boot devicesBOSS-N1 DC-MHS (rear; RAID 0/1, 2 x M.2 NVMe 480 GB or 960 GB read-intensive)HPE NS204i-u v2 480GB 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 + 2 more
Storage controllers511

Accelerators & I/O

SpecificationR7715DL345 Gen12
Double-wide cards listed42
PCIe network slots86
Network cards listed1635

Power & platform

SpecificationR7715DL345 Gen12
Power-supply options117
Input typesAC · 277 VAC / HVDCAC · −48 V DC
ManagementiDRAC10HPE iLO 7
Chassis depthVendors measure depth differently — see each data sheet802.4 mm with PSU handle8LFF CTO: 65.61 cm / 25.83 in deep
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.

R7715: processors by cores and TDP

Dell PowerEdge R7715 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 9655P — 96 cores / 192 threads · 400 W · 2.6 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 9555P — 64 cores / 128 threads · 360 W · 3.2 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9535 — 64 cores / 128 threads · 300 W · 256 MB cache · DDR5-6000AMD 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 · 256 MB cache · DDR5-6000AMD EPYC 9375F — 32 cores / 64 threads · 320 W · 3.8 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 · 3.2 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 · DDR5-6400EPYC 9845160 cores · 2.4 W/core — top SKU and most efficient
AMD EPYC 9005 18Bubble size = L3 cache · hover a bubble for the full SKU

DL345 Gen12: processors by cores and TDP

HPE ProLiant Compute DL345 Gen12 processors081624324048566472808896104112120128136144152160168176184192100 W150 W200 W250 W300 W350 W400 W450 W500 WCores per processorAMD EPYC 9965 — 192 cores · 500 W · 2.25 GHz base · 384 MB cache · DDR5-6400AMD 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 9755 — 128 cores · 500 W · 2.7 GHz base · 512 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 · 3.2 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 · DDR5-6400EPYC 9965192 cores — the top SKUEPYC 98452.4 W/core — most efficient
AMD EPYC 9005 23Bubble size = L3 cache · hover a bubble for the full SKU

R7715: memory with every slot filled

16 GB384 GB32 GB768 GB64 GB1.5 TB96 GB2.3 TB128 GB3 TB256 GB6 TB24 slots · 24 per processor · each tick = one DIMM

DL345 Gen12: memory with every slot filled

32 GB768 GB64 GB1.5 TB96 GB2.3 TB128 GB3 TB256 GB6 TB24 slots · 24 per processor · each tick = one DIMM

R7715: drive bays

Front panel

40 × EDSFF NVMe at the front — 40 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

DL345 Gen12: drive bays

Front panel

8 × 2.5" SAS/SATA + NVMe at the front — 8 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

R7715: power supplies

0500100015002000250030003500800 W Platinum — 100-240 VAC or 240 VDC; 60 mm800Platinum800 W Titanium — 100-240 VAC or 240 VDC; 60 mm800Titanium1100 W Platinum — 100-240 VAC (derated to 1050 W at 100-120 VAC) or 240 VDC; 60 mm1100Platinum1100 W Titanium — 100-240 VAC (derated to 1050 W at 100-120 VAC) or 240 VDC; 60 mm1100Titanium1400 W Telco (DC) — -48 to -60 VDC1400DC1500 W Titanium — 100-240 VAC (derated to 1050 W at 100-120 VAC) or 240 VDC; 60 mm1500Titanium1500 W Titanium — 277 VAC or 336 VDC HVDC; 60 mm1500Titanium1800 W Titanium — 200-240 VAC or 240 VDC mixed mode; 60 mm; C16; not available at November 2025 launch1800Titanium2400 W Titanium — 100-240 VAC or 240 VDC mixed mode; 73.5 mm; C192400Titanium3200 W Titanium — 200-240 VAC or 240 VDC mixed mode; 73.5 mm; C193200Titanium3200 W Titanium — 277 VAC or 336/366 VDC HVDC; 73.5 mm; APP/Saf-D-Grid3200TitaniumWatts · dashed line = output at 100–120 V low line
AC277 VAC / HVDC

DL345 Gen12: power supplies

0500100015002000250030003500800 W Platinum — HPE 800W M-CRPS Platinum Hot Plug Power Supply Kit. Explicitly excluded from the 96%-efficiency statement ('All of the above power supplies, except P73190-B21, are rated for 96% efficiency') and is NOT on the EU ErP Lot 9 compliant part-number list. Rated steady-state output 650W at 100-120 VAC / 800W at 200-240 VAC. BTU max 2458 (100 VAC) / 2919 (240 VAC).800Platinum1000 W Titanium — HPE 1000W M-CRPS Titanium Hot Plug Power Supply Kit; 96% efficiency; EU ErP Lot 9 compliant. Output 800W at 100-120 VAC / 1000W at 200-240 VAC (and 240 VDC China only). BTU max 3044 / 3680.1000Titanium1300 W null — HPE 1300W M-CRPS -48VDC Hot Plug Power Supply Kit. Requires HPE 1000-1300W -48VDC Power Lug Kit (P79845-B21). Listed only in the Core Options Power Supplies step, not in the Standard Features M-CRPS list.1300DC1500 W Titanium — HPE 1500W M-CRPS Titanium Hot Plug Power Supply Kit; 96% efficiency; EU ErP Lot 9 compliant. Output 1000W at 100 VAC / 1100W at 110-120 VAC / 1500W at 200-240 VAC. BTU max 3792 / 5560.1500Titanium2200 W null — HPE 2200W M-CRPS -48VDC Hot Plug Power Supply Kit. No efficiency rating is printed for the DC supplies. Requires HPE 2000-2200W -48VDC Power Lug Kit (P79839-B21). Listed only in the Core Options Power Supplies step, not in the Standard Features M-CRPS list, and not covered by the BTU/output tables.2200DC2400 W Titanium — HPE 2400W M-CRPS Titanium Hot Plug Power Supply Kit; 96% efficiency; EU ErP Lot 9 compliant. Steady-state 1200W at 100-127 VAC / 2400W at 200-240 VAC; peak 2400W at both line voltages. BTU max 4268 / 8532.2400Titanium3200 W Titanium — HPE 3200W M-CRPS Titanium Hot Plug Power Supply Kit; 96% efficiency; EU ErP Lot 9 compliant. Output 1600W at 100-127 VAC / 3200W at 200-240 VAC. BTU max 5142 / 11699.3200TitaniumWatts · dashed line = output at 100–120 V low line
AC−48 V DC
06 — Like for like

17 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: 1 more are exclusive to the R7715 and 6 to the DL345 Gen12.

ProcessorCoresTDP
AMD EPYC 9845160390 W
AMD EPYC 9825144390 W
AMD EPYC 9745128400 W
AMD EPYC 9655P96400 W
AMD EPYC 9555P64360 W
AMD EPYC 9575F64400 W
AMD EPYC 953564300 W
AMD EPYC 9475F48400 W
AMD EPYC 9375F32320 W
AMD EPYC 933532210 W
AMD EPYC 9355P32280 W
AMD EPYC 9275F24320 W
07 — Questions

R7715 vs DL345 Gen12, answered

Is the R7715 or the DL345 Gen12 the faster server?

Neither document publishes benchmark results, so this page compares what they do state. The R7715 lists 18 processors up to 160 cores at 400 W; the DL345 Gen12 lists 23 up to 192 cores at 500 W. Fully populated that is 160 cores against 192.

Which holds more memory?

The R7715 has 24 DIMM slots and a stated ceiling of 6 TB. The DL345 Gen12 has 24 and 6.0 TB.

Which takes more drives?

R7715: 40 bays across 10 documented layouts. DL345 Gen12: 36 across 8. Counts include rear and mid-chassis positions where the vendor documents them.

Can either take GPUs?

R7715: up to 6 accelerators, 4 double-wide cards listed. DL345 Gen12: up to 6, 2 double-wide listed.

Do they share any processors?

Yes — 17 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. R7715: Dell PowerEdge R7715 Technical Guide (May 2026) (Dell document). DL345 Gen12: HPE ProLiant Compute DL345 Gen12 QuickSpecs (Version 12 - 03-Aug-2026; header prints Version 12 - 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

R7715 vs DL345 Gen11Dell vs HPER7715 vs SR655 V3Dell vs LenovoDL345 Gen12 vs SR655 V3HPE vs LenovoR7615 vs R7715Generation upgradeDL345 Gen11 vs DL345 Gen12Generation upgrade

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