Intel Xeon E3-1225 v5 socket: LGA 1151
The Intel Xeon E3-1225 v5 uses the LGA 1151 socket on C236 workstation boards. It is a 4 core Skylake-DT part at 3.3 GHz to 3.7 GHz and 80 W with HD Graphics P530 and no Hyper-Threading.
- Socket
- LGA 1151
- Launched
- October 2015
- Cores and threads
- 4 and 4
- Base power
- 80 W
- Codename
- Skylake-DT
- Segment
- Workstation
- Family
- Intel Xeon E3
- Clocks
- 3.3 / 3.7 GHz
Intel Xeon E3-1225 v5 specifications
| Cores | 4 |
|---|---|
| Threads | 4 (Hyper-Threading off) |
| Core architecture | Skylake cores on 14 nm |
| Clocks | 3.3 GHz base, up to 3.7 GHz turbo |
| Cache | 8 MB Smart Cache |
| Processor base power (TDP) | 80 W |
| Manufacturing process | 14 nm |
| Memory support | DDR4-1866 and 2133 and DDR3L ECC, two channels, up to 64 GB |
| PCI Express | PCIe 3.0, 16 lanes |
| Integrated graphics | Intel HD Graphics P530 |
| ECC memory | Supported |
| Package | LGA 1151 (FCLGA1151) |
Motherboard and chipset compatibility
Intel Xeon E3-1225 v5 needs a motherboard with a LGA 1151 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| C230 series: C236 | C236 | 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 1151.
LGA 1151 at a glance
| Type | LGA, 1,151 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | August 2015 |
| Memory | DDR4 on most boards (some early boards use DDR3L). DDR4 only on the second revision |
| Cooler mounting holes | 75 × 75 mm |
What the Xeon E3-1225 v5 is
The Xeon E3-1225 v5 is an entry P530 Skylake workstation part on LGA 1151 for CAD starter boxes. Intel set 4 cores and 4 threads at 3.3 GHz base with turbo to 3.7 GHz. Eight megabytes of Smart Cache cover design apps. Power is 80 W on 14 nm from October 2015. Hyper-Threading is off.
Four fast cores with P530 graphics suit single thread CAD without a discrete card. Turbo covers model rebuilds while steady drafting holds base. The 80 W envelope fits tower workstations with stock airflow. ECC over two channels protects design data.
HD Graphics P530 drives workstation panels with certified drivers. DDR4 and DDR3L ECC feed the node. Buyers pick the 1225 v5 where entry workstation graphics with fast cores must stay on C236.
Socket and motherboard compatibility
The 1225 v5 fits LGA 1151 on C236 workstation boards. The socket C236 table covers Skylake-DT. Board display outputs decide P530 connectivity. Consumer firmware lacks E3 validation.
ECC UDIMMs to 64 GB are standard. LGA 1150 never boots Skylake. Check ISV notes for P530 certification on the exact board.
Memory, PCIe and cooling
DDR4-1866 and 2133 ECC over two channels to 64 GB suit CAD starters. Dual channel operation decides P530 smoothness. DDR3L ECC covers reuse.
PCIe 3.0 with 16 lanes from the CPU serves a future discrete card or NVMe scratch. Starter builds often run P530 alone. A fast SSD holds project files.
Cooling uses 80 W tower sinks. High base clocks need steady cooling. No boxed cooler ships.
Upgrade paths
On the same socket the Intel Xeon E3-1245 v5 at 3.5 GHz to 3.9 GHz with 8 threads above doubles threads for media work, while the Intel Xeon E3-1220 v5 at 3.0 GHz to 3.5 GHz headless below saves cost. All share C236 boards where listed.
A move to E3 v6 needs new firmware. The 1225 v5 holds entry P530 graphics in Skylake workstations.
Frequently asked questions
What socket does the Intel Xeon E3-1225 v5 use?
It uses LGA 1151 on C236 workstation boards.
How many cores does the Xeon E3-1225 v5 have?
4 cores and 4 threads at 3.3 GHz base with turbo to 3.7 GHz. Hyper-Threading is off.
Which graphics does the Xeon E3-1225 v5 include?
Intel HD Graphics P530 for CAD starter boxes.
When did the Xeon E3-1225 v5 launch?
October 2015.
Sources and verification
- Intel Xeon Processor E3-1225 v5 specifications (Intel)
- Intel Xeon E3-1200 v5 workstation family brief (Intel, P530 models)
Facts last checked against these sources on . Page last edited on .