Intel Xeon w7-2575X socket: LGA 4677
The Intel Xeon w7-2575X uses LGA 4677, the LGA workstation socket for Sapphire Rapids Xeon W with W790 chipsets, DDR5 RDIMM memory and 64 PCIe Gen5 lanes. The unlocked 22-core chip at 250 W suits mainstream workstation boards.
- Socket
- LGA 4677
- Launched
- August 2024
- Cores and threads
- 22 and 44
- Base power
- 250 W
- Codename
- Sapphire Rapids
- Segment
- Workstation
- Family
- Intel Xeon W
- Clocks
- 3.0 / 4.8 GHz
Intel Xeon w7-2575X specifications
| Cores | 22 |
|---|---|
| Threads | 44 |
| Core architecture | Golden Cove (P-cores only, monolithic) |
| Clocks | 3.0 GHz base, up to 4.8 GHz boost |
| Cache | 45 MB Intel Smart Cache |
| Processor base power (TDP) | 250 W |
| Manufacturing process | Intel 7 (10 nm) |
| Memory support | DDR5-4800 RDIMM with ECC, 4 channels |
| PCI Express | PCIe 5.0 x64 |
| Integrated graphics | None |
| Multiplier | Unlocked |
| ECC memory | Yes |
| Package | FCLGA4677 (77.5 by 56.5 mm) |
Motherboard and chipset compatibility
Intel Xeon w7-2575X needs a motherboard with a LGA 4677 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| W790 workstation | W790 | Works out of the box |
Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for LGA 4677.
LGA 4677 at a glance
| Type | LGA, 4,677 contacts |
|---|---|
| Package size | 77.5 × 56.5 mm |
| Introduced | 2023 |
| Memory | DDR5-4800 Registered DIMMs with ECC, 8 channels up to 4 TB on W-3500 and W-3400, 4 channels on W-2500 and W-2400 |
| Cooler mounting holes | Board specific (workstation heatsink) |
What the Xeon w7-2575X is
The Xeon w7-2575X is a 22-core and 44-thread workstation processor that launched in August 2024 as the unlocked Sapphire Rapids-64L refresh for mainstream workstations. Twenty-two Golden Cove Performance-cores with Hyper-Threading and no Efficient-cores give 44 threads at 3.0 GHz base and up to 4.8 GHz boost. Cache is 45 MB of Smart Cache. Processor base power is 250 W with tuning headroom on X SKUs.
The unlocked X suffix allows multiplier and memory tuning where the W790 board enables it. Four-channel DDR5-4800 RDIMM with ECC feeds 22 cores plus GPUs from board memory. Up to 64 Gen5 lanes serve GPUs and NVMe RAID from one socket without dual-socket overhead.
Mainstream expert workstations fit here. Twenty-two cores keep rendering plus design together. Buyers who need 26 cores for larger scenes should take the Intel Xeon w7-2595X with 48.7 MB cache instead, since this w7 balances clocks with tuning.
Socket and motherboard compatibility
The w7-2575X fits LGA 4677 on W790 mainstream boards with 250 W delivery. Boards accept W-2400 plus W-2500 refresh SKUs with a BIOS that lists the part. The FCLGA4677 package uses the E1A carrier.
Memory is DDR5-4800 RDIMM with ECC in 4 channels. XMP-compatible RDIMM tuning is available on X SKUs where the board enables it. Population is 1 DIMM per channel at 4800 MT per s or 2 per channel at 4400 MT per s.
W-2500 shoppers compare unlocked X parts on cores and cache. The w7-2575X trails the 26-core flagship on threads. The Socket vs chipset: what decides whether a CPU works guide explains vendor lists.
Memory, PCIe and cooling
DDR5-4800 RDIMM with ECC in 4 channels is the W-2500 standard. Scenes plus datasets should be sized together. Matched quartets are preferred.
PCIe gives 64 Gen5 lanes from the CPU plus 28 chipset lanes for GPUs, NVMe and LAN. Fixed splits mean plans must match the manual.
Cooling is workstation 250 W with vendor-qualified air or liquid. No retail cooler ships with tray supply.
Upgrade paths
LGA allows moves within the vendor list, such as to the 26-core flagship with similar cooling. Memory and NVMe can also grow. BIOS must support the target.
The bandwidth leap is to 8-channel W-3500. A working w7-2575X serves expert desks for years.
Frequently asked questions
What socket does the Xeon w7-2575X use?
It uses LGA 4677 on W790 mainstream workstation boards. A BIOS that lists the refresh is required.
Is the Xeon w7-2575X unlocked?
Twenty-two cores and 44 threads at 3.0 GHz base and up to 4.8 GHz boost, with 45 MB of cache at 250 W. The multiplier is unlocked.
What memory does the w7-2575X support?
DDR5-4800 RDIMM with ECC in 4 channels. XMP RDIMM tuning is available where enabled.
Can the w7-2575X be upgraded?
Yes, to higher-core W-2500 parts on the same board where power, cooling and BIOS allow.
Sources and verification
- Intel Xeon W-3500 and W-2500 Sapphire Rapids Refresh lineup table w7-2575X 22 cores (Wccftech)
- Intel Xeon W W790 chipset DDR5 workstations memory lanes (Kingston)
Facts last checked against these sources on . Page last edited on .