AMD EPYC 7702 socket: SP3
The AMD EPYC 7702 uses SP3, the LGA socket for EPYC server processors. The 64-core chip at 200 W scales to dual socket 128-core boxes.
AMD EPYC 7702 specifications
| Cores | 64 |
|---|---|
| Threads | 128 |
| Core architecture | Zen 2 (Rome) |
| Clocks | 2.0 GHz base, up to 3.35 GHz boost |
| Cache | 32 MB L2 plus 256 MB L3 |
| Default TDP | 200 W |
| Manufacturing process | TSMC 7 nm FinFET |
| Memory support | DDR4-3200 ECC, 8 channels, up to 4 TB |
| PCI Express | 128 PCIe Gen4 lanes per socket, up to 160 in 2P |
| Integrated graphics | None (BMC graphics on board) |
| Multiplier | Locked |
| ECC memory | Supported, DDR4 ECC RDIMM |
| Package | SP3 LGA4094 |
| Cooler in the box | None, server heatsink required |
Motherboard compatibility
AMD EPYC 7702 needs a motherboard with a SP3 socket. Chipset by chipset data for this codename is not recorded yet. See the SP3 chipset list and the board maker's CPU support list.
SP3 at a glance
| Type | LGA, 4,094 contacts |
|---|---|
| Package size | 58.5 × 75.4 mm |
| Introduced | June 2017 |
| Memory | DDR4 ECC RDIMM, 8 channels to DDR4-3200, up to 4 TB per socket |
| Cooler mounting holes | Board specific (server heatsink) |
What the EPYC 7702 is
The EPYC 7702 is a 64-core, 128-thread server processor from Rome. It launched in August 2019 for dual socket density with a 2.0 GHz base and up to 3.35 GHz boost at 200 W. Eight chiplets share 256 MB of L3.
One hundred twenty eight threads per socket double up to 256 threads per box in 2P builds. Thirty two megabytes of L2 back massive parallel fleets. The 200 W rating undercuts the 225 W 7742 for power aware data centers.
Dual socket scaling defines this SKU against its single socket twin 7702P. Clouds that must hold everything in one box choose 2P 7702 pairs. The lower base clock reflects power sharing across 64 cores.
Socket and motherboard compatibility
The EPYC 7702 fits SP3 on single and dual socket boards rated for 200 W. Dual socket boards unlock the full 128-core configuration. Vendor qualification covers thermals at this density.
Two socket builds need matched pairs with identical firmware. Redundant power and cooling zones matter in 2U. The How to find your CPU socket type guide covers server platforms.
Milan 64-core parts later reused these boards with BIOS updates for IPC gains.
Memory, PCIe and cooling
Eight channels of DDR4-3200 ECC per socket reach up to 4 TB for in memory analytics. Dual socket builds double capacity to 8 TB class. All channels filled avoids bandwidth collapse across 128 cores.
PCIe Gen4 lanes total 128 per socket and up to 160 in 2P builds for dense flash and 200 Gb networking. One box feeds a full rack of tenants. Lane planning decides accelerator counts.
The 200 W class needs premium air or liquid cooling per socket. Data center set points derate boost. Torque sequences for the large packages follow the manual.
Where this Rome part fits
Sixty four cores per socket fit clouds past two hundred VMs, HPC partitions and dense CI. Dual socket boxes serve whole departments from 2U. The 256 MB L3 keeps huge fleets on package.
Operators standardize on 2P 7702 pairs with terabytes of RAM and fast fabrics. Power per thread stays low against smaller SKUs. The AMD EPYC 7742 trades watts for base clocks nearby.
Firmware power caps can pin boxes to facility limits without hardware changes.
Upgrade paths
On SP3 clocks grow to dual 7742 parts on the same boards, or Milan 64-core SKUs for IPC. Memory and fabrics carry over.
SP5 Genoa servers bring DDR5 density for the next leap. The CPU cooler compatibility by socket guide tracks 200 W cooling.
Frequently asked questions
What socket does the AMD EPYC 7702 use?
It uses SP3 on single and dual socket server boards.
How is the 7702 different from the 7702P?
Same silicon; the 7702 scales to two sockets while the P stays single socket.
How many threads does the 7702 have?
64 cores with 128 threads per socket, 256 threads in dual socket builds.
What memory does the EPYC 7702 support?
DDR4-3200 ECC RDIMM in 8 channels, up to 4 TB per socket.
What is the TDP of the EPYC 7702?
200 W per socket with server cooling required.
When did the EPYC 7702 launch?
August 2019 with the Rome family.
Sources and verification
Facts last checked against these sources on . Page last edited on .