Intel Xeon E-2174G socket: LGA 1151
The Intel Xeon E-2174G uses the LGA 1151 socket, second revision. It runs on C242 and C246 workstation boards as a 71 W quad core with the fastest turbo in its class.
- Socket
- LGA 1151
- Launched
- July 12, 2018
- Cores and threads
- 4 and 8
- Base power
- 71 W
- Codename
- Coffee Lake-S WS
- Segment
- Workstation
- Family
- Intel Xeon E
- Clocks
- 3.8 / 4.7 GHz
Intel Xeon E-2174G specifications
| Cores | 4 |
|---|---|
| Threads | 8 |
| Core architecture | Coffee Lake-S WS |
| Clocks | 3.8 GHz base, up to 4.7 GHz turbo |
| Cache | 8 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 71 W |
| Manufacturing process | 14 nm |
| Memory support | DDR4-2666, two channels, up to 128 GB |
| PCI Express | PCIe 3.0, 16 lanes from the CPU |
| Integrated graphics | Intel UHD Graphics P630 (350 MHz base, up to 1.20 GHz) |
| Multiplier | Locked |
| ECC memory | Yes |
| Package | FCLGA1151 |
Motherboard and chipset compatibility
Intel Xeon E-2174G needs a motherboard with a LGA 1151 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| C240 series: C242 and C246 | C246, C242 | 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 E-2174G is
The Xeon E-2174G is a four core, eight thread workstation processor with a 3.8 GHz base and up to 4.7 GHz turbo. It carries 8 MB of Smart Cache and a 71 W TDP on the 14 nm process. Intel launched it on July 12, 2018 as the clock leader of the E-2100 quad cores.
The 3.8 GHz base tops the workstation quad core stack for single threaded CAD, with turbo matching the six core flagship. Four cores with Hyper-Threading cover interactive work beside background builds. The multiplier is locked at 38 times the base clock.
UHD Graphics P630 runs from 350 MHz to 1.20 GHz for setup displays. Boxed and tray supply both exist, with boxed parts including a thermal solution. Launch pricing is omitted here because ARK and launch lists disagree between $328 and $370.
Socket and motherboard compatibility
The E-2174G fits LGA 1151 revision 2 on workstation boards with the C242 and C246 chipsets. Consumer 300 series boards are not the target, since ECC wiring lives on the workstation boards. Check the board maker CPU list for the exact E-2174G before ordering.
It does not fit 100 or 200 series boards, which are revision 1 for 6th and 7th Gen chips. Boards with display outputs suit this G SKU directly. A discrete workstation card still fits the x16 slot where GPU compute is needed.
Boards sold after mid 2018 accept it with the shipping BIOS where the maker lists the part. The Intel Xeon E-2144G is the lower clocked quad core sibling on the same boards.
Memory, PCIe and cooling
Memory support is DDR4-2666 in two channels up to 128 GB, with ECC correcting single bit errors. Two matched ECC UDIMMs give dual channel speed with error cover. The P630 shares system memory, so dual channel mode helps display smoothness.
PCI Express arrives as version 3.0 with 16 lanes from the CPU for graphics and storage. A workstation card and an NVMe drive fit the lane budget of an entry tower. Cooling uses the shared 75 mm LGA 1151 pattern at 71 W.
Upgrade paths
On the same socket the step up is a six core E part such as the Xeon E-2146G where threads matter, keeping the board and ECC DDR4. The E-2174G keeps its place where single threaded speed beats thread count.
Moving past LGA 1151 means a new board on a current workstation platform. Owners usually add ECC memory or a faster workstation card before replacing the processor.
Frequently asked questions
What socket does the Xeon E-2174G use?
It uses LGA 1151 revision 2 on C242 and C246 workstation boards. Consumer 300 series boards are not the target.
How many cores does the E-2174G have?
Four cores with Hyper-Threading give eight threads at 3.8 GHz base with up to 4.7 GHz turbo, with 8 MB of cache at 71 W.
Which graphics does the E-2174G include?
UHD Graphics P630 from 350 MHz to 1.20 GHz for setup displays and triple outputs without a separate card.
What memory does the E-2174G support?
DDR4-2666 in two channels up to 128 GB with ECC for error cover on long jobs.
How does the E-2174G differ from the E-2144G?
The Intel Xeon E-2144G runs 3.6 GHz base on the same boards. The E-2174G adds 200 MHz base with a higher turbo.
Sources and verification
Facts last checked against these sources on . Page last edited on .