Intel Xeon E3-1285L v4 socket: LGA 1150
The Intel Xeon E3-1285L v4 uses the LGA 1150 socket on C226 workstation boards. It is a 4 core Broadwell-DT part with 8 threads from 3.4 GHz to 3.8 GHz at 65 W with Iris Pro Graphics P6300.
- Socket
- LGA 1150
- Launched
- June 2015
- Cores and threads
- 4 and 8
- Base power
- 65 W
- Codename
- Broadwell-DT
- Segment
- Workstation
- Family
- Intel Xeon E3
- Clocks
- 3.4 / 3.8 GHz
Intel Xeon E3-1285L v4 specifications
| Cores | 4 |
|---|---|
| Threads | 8 |
| Core architecture | Broadwell cores on 14 nm |
| Clocks | 3.4 GHz base, up to 3.8 GHz turbo |
| Cache | 6 MB Smart Cache plus 128 MB eDRAM |
| Processor base power (TDP) | 65 W |
| Manufacturing process | 14 nm |
| Memory support | DDR3 and DDR3L ECC, two channels, up to 32 GB |
| PCI Express | PCIe 3.0, 16 lanes |
| Integrated graphics | Intel Iris Pro Graphics P6300 (300 MHz to 1150 MHz, 48 execution units) |
| ECC memory | Supported |
| Package | LGA 1150 |
Motherboard and chipset compatibility
Intel Xeon E3-1285L v4 needs a motherboard with a LGA 1150 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| C220 series: C226 | C226 | 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 1150.
LGA 1150 at a glance
| Type | LGA, 1,150 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | June 2013 |
| Memory | DDR3 and DDR3L |
| Cooler mounting holes | 75 × 75 mm |
What the Xeon E3-1285L v4 is
The Xeon E3-1285L v4 pairs high clocks with Iris Pro graphics on LGA 1150 for media workstations. Intel set 4 cores and 8 threads at 3.4 GHz base with turbo to 3.8 GHz. Six megabytes of Smart Cache plus 128 MB of eDRAM feed cores and graphics. Power is 65 W on 14 nm from June 2015.
High base clocks lead workstation E3 v4 parts in single thread work. Iris Pro Graphics P6300 from 300 MHz to 1150 MHz with 48 execution units accelerates transcodes. Eight threads cover renders with background tasks. The 65 W envelope fits tower workstations with standard cooling.
DDR3 ECC over two channels to 32 GB feeds the node. ECC protects long renders. Buyers pick the 1285L v4 where clocks plus Iris Pro must meet in one workstation socket.
Socket and motherboard compatibility
The 1285L v4 fits LGA 1150 on C226 workstation boards. The C226 chipset table on the socket page covers this codename. Consumer boards lack ECC and workstation validation. Check the board list for high power L suffix support.
ECC UDIMMs in two channels are the standard population. LGA 1151 never accepts Broadwell parts. Display outputs on the board decide Iris Pro usability.
Memory, PCIe and cooling
DDR3-1866 ECC over two channels to 32 GB suits media workstations. Dual channel operation decides Iris Pro speed. Thirty two gigabytes covers 4K timelines.
PCIe 3.0 with 16 lanes from the CPU serves a discrete card or NVMe scratch. Many builds rely on Iris Pro alone. A fast NVMe scratch disk helps timeline smoothness.
Cooling uses 65 W tower sinks with workstation airflow. High sustained clocks need steady cooling. No boxed cooler ships with tray parts.
Upgrade paths
On the same socket the Intel Xeon E3-1285 v4 at 3.5 GHz to 3.8 GHz with 95 W tuning nearby adds power headroom, while the Intel Xeon E3-1284L v4 at 2.9 GHz to 3.8 GHz saves power. All share C226 boards where listed.
A move to E3 v5 needs C236. The 1285L v4 balances clocks and Iris Pro in Broadwell workstations.
Frequently asked questions
What socket does the Intel Xeon E3-1285L v4 use?
It uses LGA 1150 on C226 workstation boards.
How many cores does the Xeon E3-1285L v4 have?
4 cores and 8 threads at 3.4 GHz base with turbo to 3.8 GHz.
Which graphics does the Xeon E3-1285L v4 include?
Intel Iris Pro Graphics P6300 from 300 MHz to 1150 MHz with 128 MB eDRAM.
When did the Xeon E3-1285L v4 launch?
June 2015.
Sources and verification
- Intel Xeon Processor E3-1285L v4 specifications (Intel)
- Intel Xeon E3-1200 v4 Family Brief (Intel, Iris Pro P6300)
Facts last checked against these sources on . Page last edited on .