Dell PowerEdge R750 vs R760 — Ice Lake to Sapphire/Emerald Rapids
This is the comparison we field most from teams who bought R750 in 2021–2022 and are now weighing whether the R760 justifies the USD delta. Short answer: if your next workload involves PCIe 5.0 accelerators, DDR5 memory bandwidth, or CXL-class memory tiering — yes. If you’re replacing a failed R750 chassis — no, keep the generation consistent.
Generation delta
| R750 (15G) | R760 (16G) | |
|---|---|---|
| Released | March 2021 | January 2023 |
| CPU | Ice Lake-SP (Xeon Scalable Gen 3) | Sapphire Rapids / Emerald Rapids (Gen 4/5) |
| Max cores/socket | 40 (8380) | 64 (8592+) |
| Memory | DDR4-3200, max 4TB | DDR5-4800/5600, max 4TB (larger in dual-rank configs) |
| DIMM slots | 32 | 32 |
| Channels/socket | 8 | 8 (DDR5 channels = two 32-bit sub-channels each) |
| PCIe | Gen 4 | Gen 5 |
| CXL | — | CXL 1.1 Type-3 memory expansion |
| RAID | PERC H345/H355/H755/H755N/HBA355i | PERC 12 family — H965i / H965e / HBA465i |
| PSU | 800W–2400W Titanium | 800W–2800W Titanium |
| Lifecycle | EOS 2024-09-30, EOSL 2028-06-30 | Current, no EOS announced |
DDR5 — what changes, what doesn’t
DDR4 RDIMM at 3200 MHz delivers roughly 25.6 GB/s per channel. DDR5-4800 RDIMM delivers 38.4 GB/s. On an 8-channel socket that is 204 GB/s vs 307 GB/s — a 50 % bandwidth lift. DDR5 also introduces on-DIMM voltage regulation and per-sub-channel addressing.
What it means day-to-day: workloads memory-bandwidth-bound (in-memory databases, HPC sims, large Spark jobs) see 25–40 % real-world improvement. Workloads bound by compute, I/O, or network see near zero.
DDR4 DIMMs do NOT fit the R760. The memory slot pin-out changed. Representative R760 DDR5 PNs: AC239377, AC239378, AC239379, AC448843. This is one of the two most expensive line items in a 15G to 16G migration.
PCIe 5.0 and CXL
PCIe 5.0 doubles lane bandwidth again — 32 GT/s per lane, 128 GB/s on an x16 slot. For an H100 or L40S GPU, PCIe 5.0 removes the host-link bottleneck. The R750 PCIe 4.0 slot delivered roughly 64 GB/s x16, which became the ceiling on modern inference workloads.
CXL 1.1 support on the R760 opens Type-3 memory expansion — CXL-attached RAM modules that plug into a PCIe slot and appear as system memory. Real utility is still early (software support in Linux kernel 6.x), but for workloads needing >4TB on a 2-socket box, CXL is the path.
Storage backplane
R750 carries up to 16 NVMe SFF drives on PCIe 4.0 x4 via PERC H755N. R760 carries up to 16 SFF or 24 E3.S NVMe drives on PCIe 5.0 x4 via PERC 12. The E3.S form factor is Dell’s bet for 2024+ dense storage — hot-swap, higher density per U, better thermals.
E3.S drive PNs in ICD catalogue: 1VK3C, 3NVF2, 831H5, G27W5. Traditional NVMe U.2: 08M01, 0D4GH, 0HVC7, 0MNMV.
PERC 11 to PERC 12
R750 PERC 11 (H755, H755N) is a proven controller — tri-mode, NVMe hardware RAID, 8GB cache. R760 PERC 12 (H965i, H965e, HBA465i) adds PCIe 5.0 lanes, higher queue depths, and 16GB cache on the flagship SKUs. Real-world benefit shows up on 24-drive NVMe tiers sustained sequential reads above 40 GB/s.
PERC 12 PNs: 2PG59, 3KWJN, 4G20M, 5Y1HD. PERC 11 (R750): 04M4C, 0878M, 0DXN6, 0N54P covers some 15G SKUs; H755 family uses different numbers ICD tracks by sub-SKU.
Power / cooling profile
R750 supports CPU TDP up to ~270W. R760 supports 350W CPU TDP (Platinum 8592+ with 64 cores at 350W). This changes cooling requirements — R760 ships with redesigned heatsinks and a larger airflow budget. If you populate 350W CPUs plus 4× 700W GPUs plus 24× NVMe, the 2800W Titanium PSU earns its place.
PSU PN samples stocked: 5222N, D3684, D7RNC, 0GDXX, 450-AGFW, 450-AKKZ plus 2800W SKUs on request.
When to upgrade, when to wait
Upgrade now:
- GPU inference/training cluster refresh — PCIe 5.0 pays off immediately.
- Workloads at the 40-core ceiling on R750 needing 48+ per socket.
- Fresh greenfield where DDR5 memory economics already favour DDR5.
Wait another cycle:
- Existing R750 fleet with 3+ years remaining on the hardware. Dell ProSupport runs through 30 June 2028.
- Workloads fitting comfortably under 40 cores with no DDR5 bandwidth need.
- Budget priorities (most 2026 IT budgets in EGP/NGN-denominated businesses are not funding generation jumps).
ICD stocking position
R750: deep stock in Cairo and Dubai for PERC H755/H755N, DDR4-3200 memory, 1400W–1800W PSU, NVMe U.2 drives. R760: spares channel is tighter — DDR5 memory, PERC 12, and E3.S drives ship from Dubai on 5–12 day lead times. Open an RFQ for either platform, we’ll confirm stock and shipping window within the day.