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

HPE XD685 vs Lenovo SR675 V3

A specification-by-specification comparison of the HPE ProLiant Compute XD685 and the Lenovo ThinkSystem SR675 V3, built from HPE’s and Lenovo’s own documents. 2 headline measures favour the XD685, 3 favour the SR675 V3, and 9 processors appear in both lists.

Bottom line. SR675 V3 leads on virtualisation, databases and in-memory work, storage density. Neither vendor publishes benchmarks for these machines, so every call here is made on what their documents state.

HPE ProLiant Compute XD685 front: twelve E3.S NVMe bays, NS204 boot module, iLO, VGA and USB 3.0 ports, PCIe bays at each side, badge on the ear
HPE ProLiant
XD685
5U Rack2 sockets24 DIMMHPE iLO 6
Configure the XD685 →Full data sheet
VS
Lenovo ThinkSystem SR675 V3 on the 8-DW GPU base, angled front: six-bay EDSFF drive cage at left and ten numbered PCIe openings
Lenovo ThinkSystem
SR675 V3
3U Rack2 sockets24 DIMMXClarity Controller 2
Configure the SR675 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.

2
Processor sockets
2
192
Cores, fully populated
Largest listed processor × its socket count
Higher320
3 TB
Memory ceiling
As each document states it
Higher6 TB
12Higher
Drive bays
8
Up to 8
Accelerators
Up to 8
3,000 WHigher
Largest power supply
2,600 W
5U Rack
Rack height
Higher3U 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 XD685 if…

  • Drive bays: 12 against 8 on the SR675 V3
  • Largest power supply: 3,000 W against 2,600 W on the SR675 V3
  • Four eight-GPU boards on one platform — NVIDIA HGX H200, B200 and HGX B300, or AMD Instinct MI355X — with B200, B300 and MI355X each tied to its own DLC or power kit.

Choose the SR675 V3 if…

  • Cores, fully populated: 320 against 192 on the XD685
  • Memory ceiling: 6 TB against 3 TB on the XD685
  • Rack height: 3U Rack against 5U Rack on the XD685
  • Eight double-wide or single-wide PCIe GPUs fit in 3U on the 8-DW base, fed either by two direct x8 risers at 1:1 or by two switched x16 risers that share each host link between two cards.
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.

VirtualisationXD685: 192 cores with 3 TB. SR675 V3: 320 cores with 6 TB.SR675 V3
Databases & in-memoryMemory ceiling 3 TB against 6 TB, across 24 and 24 DIMM slots.SR675 V3
Storage density12 bays in 5U against 8 in 3U.SR675 V3
AI & acceleration8 accelerators against 8 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.

SpecificationXD685SR675 V3
Processors listed940
Most cores per processor96160
Processor familiesAMD EPYC 9005AMD EPYC 9005 · AMD EPYC 9004
Single-processor optionNoYes

Memory

SpecificationXD685SR675 V3
Largest module listed128 GB256 GB
Memory typesRDIMM DDR5-6400RDIMM DDR5-6400 (5th Gen EPYC) · RDIMM DDR5-4800 (4th Gen EPYC) · 3DS RDIMM DDR5-6400

Storage

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

SpecificationXD685SR675 V3
Maximum bays128
Documented layouts23
Bay sizesE3.S2.5-inch · E3.S
Boot devicesHPE ProLiant Compute XD NS204i-u 960GB Boot Device (S4R99A) - 2x 480 GB M.2 NVMe RAID 1 · HPE ProLiant Compute XD NS204i-u 2x 960GB Boot Device (S6A36A) - 2x 960 GB M.2 NVMe RAID 1M.2 SATA/NVMe 2-Bay Enablement Kit (4Y37A09738) · M.2 SATA/x4 NVMe 2-Bay Enablement Kit (4Y37A79663) · M.2 NVMe 2-Bay RAID Enablement Kit (4Y37A09750)
Storage controllers37

Accelerators & I/O

SpecificationXD685SR675 V3
Double-wide cards listed05
OCP slots01
PCIe network slots126
Network cards listed2025

Power & platform

SpecificationXD685SR675 V3
Power-supply options14
Output range3,000–3,000 W1,800–2,600 W
Input types−48 V DCAC
ManagementHPE iLO 6XClarity Controller 2
Chassis depthVendors measure depth differently — see each data sheet1049 mm (L) deep892 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.

XD685: processors by cores and TDP

HPE ProLiant Compute XD685 processors081624324048566472808896250 W300 W350 W400 WCores per processorAMD EPYC 9655 — 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 GHz base · 256 MB cache · DDR5-6400AMD EPYC 9555 — 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 9455 — 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 9355 — 32 cores · 280 W · 3.6 GHz base · 256 MB cache · DDR5-6400EPYC 965596 cores — the top SKUEPYC 96453.3 W/core — most efficient
AMD EPYC 9005 9Bubble size = L3 cache · hover a bubble for the full SKU

SR675 V3: processors by cores and TDP

Lenovo ThinkSystem SR675 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 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 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 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 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 9684X — 96 cores / 192 threads · 400 W · 2.55 GHz base · 1150 MB cache · DDR5-4800AMD EPYC 9654 — 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 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 9374F — 32 cores / 64 threads · 320 W · 3.85 GHz base · 256 MB cache · DDR5-4800AMD EPYC 9384X — 32 cores / 64 threads · 320 W · 3.1 GHz base · 768 MB cache · DDR5-4800AMD EPYC 9354 — 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 9184X — 16 cores / 32 threads · 320 W · 3.55 GHz base · 768 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 21AMD EPYC 9004 19Bubble size = L3 cache · hover a bubble for the full SKU

XD685: memory with every slot filled

64 GB1.5 TB96 GB2.3 TB128 GB3 TB24 slots · 12 per processor · each tick = one DIMM

SR675 V3: memory with every slot filled

16 GB384 GB32 GB768 GB64 GB1.5 TB96 GB2.3 TB128 GB3 TB256 GB6 TB24 slots · 12 per processor · each tick = one DIMM

XD685: drive bays

Front panel

8 × EDSFF NVMe at the front — 8 bays in total.

SAS/SATANVMeSAS/SATA + NVMe

SR675 V3: drive bays

Front panel

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

SAS/SATANVMeSAS/SATA + NVMe

XD685: power supplies

0500100015002000250030003000 W Titanium — Option name 'HPE ProLiant Compute XD 3000W 54VDC Power Supply' (54VDC = output); Standard Features name 'HPE 3000 W CRPS Titanium Hot Plug Power Supply Kit'. Family: CRPS as printed (not HPE Flex Slot; the doc does not say M-CRPS). Rated input 200-277 VAC; PMAX 2900 W at 200 VAC, 3000 W at 207-277 VAC. Max BTU 6497 BTU/hr @200 VAC, 7230 @220 VAC, 7962 @240 VAC. No -48 VDC or HVDC unit listed. 'The PSU model will differ based on the total number of PSUs in the system.' B200/B300/MI355X configs default to 12 PSUs; 10 PSUs can be deployed where PDUs/manifolds do not allow 12; B200 base 6-PSU (S4X40A) with S6V19A for 12-PSU N+3.3000TitaniumWatts · dashed line = output at 100–120 V low line
−48 V DC

SR675 V3: power supplies

0500100015002000250030001800 W Platinum — input 230V; max quantity 4; 2-4 PSUs depending on model/redundancy (Table 44)1800Platinum1800 W Titanium — input 230V; max quantity 4; 2-4 PSUs depending on model/redundancy (Table 44)1800Titanium2400 W Platinum — input 230V; max quantity 2-4; 2-4 PSUs depending on model/redundancy (Table 44)2400Platinum2600 W Titanium — input 230V; max quantity 2-4; 2-4 PSUs depending on model/redundancy (Table 44)2600TitaniumWatts · dashed line = output at 100–120 V low line
AC
06 — Like for like

9 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 XD685 and 31 to the SR675 V3.

ProcessorCoresTDP
AMD EPYC 964596320 W
AMD EPYC 965596400 W
AMD EPYC 956572400 W
AMD EPYC 953564300 W
AMD EPYC 955564360 W
AMD EPYC 9575F64400 W
AMD EPYC 945548300 W
AMD EPYC 936536300 W
AMD EPYC 935532280 W
07 — Questions

XD685 vs SR675 V3, answered

Is the XD685 or the SR675 V3 the faster server?

Neither document publishes benchmark results, so this page compares what they do state. The XD685 lists 9 processors up to 96 cores at 400 W; the SR675 V3 lists 40 up to 160 cores at 400 W. Fully populated that is 192 cores against 320.

Which holds more memory?

The XD685 has 24 DIMM slots and a stated ceiling of 3.0 TB. The SR675 V3 has 24 and 6 TB.

Which takes more drives?

XD685: 12 bays across 2 documented layouts. SR675 V3: 8 across 3. Counts include rear and mid-chassis positions where the vendor documents them.

Can either take GPUs?

XD685: up to 8 accelerators, 0 double-wide cards listed. SR675 V3: up to 8, 5 double-wide listed.

Do they share any processors?

Yes — 9 processors appear in both documents, including the AMD EPYC 9645. That makes a like-for-like build possible on either server.

Where these figures come from. XD685: HPE ProLiant Compute XD685 QuickSpecs (V15 - 03-August-2026) (HPE document). SR675 V3: Lenovo ThinkSystem SR675 V3 and SR675i V3 Servers Product Guide (August 25, 2026) (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

R760xa vs XD685Dell vs HPEXE7740 vs XD685Dell vs HPEXE7745 vs XD685Dell vs HPEXE7745 vs SR675 V3Dell vs LenovoXE8640 vs XD685Dell vs HPEXE9680 vs XD685Dell vs HPEXE9680L vs XD685Dell vs HPEXE9685L vs XD685Dell vs HPE

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