Intel Core i3-9100T socket: LGA 1151
The Intel Core i3-9100T uses the LGA 1151 socket on revision 2 boards with 300 series chipsets. It is a low power quad core desktop chip at 35 W.
- Socket
- LGA 1151 (revision 2)
- Launched
- April 2019
- Cores and threads
- 4 and 4
- Base power
- 35 W
- Codename
- Coffee Lake Refresh
- Segment
- Desktop
- Family
- Intel Core i3
- Clocks
- 3.1 / 3.7 GHz
Intel Core i3-9100T specifications
| Cores | 4 |
|---|---|
| Threads | 4 (no Hyper-Threading) |
| Core architecture | Coffee Lake Refresh cores on 14 nm |
| Clocks | 3.1 GHz base, up to 3.7 GHz with Turbo Boost 2.0 |
| Cache | 6 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 35 W |
| Manufacturing process | 14 nm |
| Memory support | DDR4-2400, two channels, up to 64 GB |
| PCI Express | 16 lanes from the CPU, PCIe 3.0 |
| Integrated graphics | Intel UHD Graphics 630 (350 MHz to 1.1 GHz) |
| Multiplier | Locked |
| ECC memory | Supported where board wires it |
| Package | FCLGA1151 (37.5 by 37.5 mm) |
Motherboard and chipset compatibility
Intel Core i3-9100T needs a motherboard with a LGA 1151 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| 300 series: B365 and Z390 | Z390, B365 | Works out of the box |
| 300 series: H310, B360, H370, Q370, Z370 | Z370, H370, B360, H310, Q370 | Needs a BIOS update Needs a BIOS update before a 9th Gen processor will start. Check the board maker's CPU support list. |
| 200 series | Z270, H270, B250, Q270, Q250 | Not supported |
| 100 series | Z170, H170, B150, H110, Q170, Q150 | Not supported |
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 Core i3-9100T is
The Core i3-9100T packs four cores without Hyper-Threading into a 35 W desktop envelope. It launched in the second quarter of 2019 with a 3.1 GHz base and up to 3.7 GHz boost. Intel positions T suffix parts for small towers that need full desktop features with less heat.
Six megabytes of Smart Cache support office multitasking across four threads. The modest base clock stretches efficiency in compact cases. Boost to 3.7 GHz lifts single thread bursts in everyday apps.
UHD Graphics 630 from 350 MHz to 1100 MHz drives office displays without a discrete card. The process is 14 nm and the multiplier is locked. ECC memory is supported where workstation boards wire it. Note that some lists show a September 2018 launch for this SKU, while Intel ARK lists Q2 2019, and this page uses the manufacturer date.
Socket and motherboard compatibility
The 9100T fits LGA 1151 on revision 2 boards only. Makers list it with H310, B360 and H370 boards for small office towers. Z390 and B365 boards accept it natively, while early Z370 class boards may need an update. Revision 1 boards never support it.
Memory is DDR4-2400 in two channels up to 64 GB per Intel, not 128 GB as some databases show. Matched pairs give dual channel speed for office work. The Socket vs chipset: what decides whether a CPU works guide explains the revision split.
Single socket desktops are the norm. Growth means another LGA 1151 chip on the same board within the support list.
Memory, PCIe and cooling
DDR4-2400 in two channels up to 64 GB suits office towers with SSDs. Start with 8 GB for general use. ECC UDIMMs work where C242 and C246 boards validate them.
PCIe 3.0 with 16 lanes from the CPU feeds NVMe or a basic discrete card. Most office builds rely on UHD 630 and leave the slot free. Chipset lanes add the remaining storage and USB.
Cooling uses the 75 mm LGA 1151 pattern in the CPU cooler compatibility by socket guide. A 35 W low profile cooler runs quietly in small cases. Keep vents clear where towers sit in cabinets.
Upgrade paths
On the same socket, the Core i5-9400T adds two more cores at the same 35 W where listed. The Intel Core i5-9400T and Intel Core i5-9500T share 300 series boards after a BIOS check.
Pentium Gold parts give two cores without Turbo for cheaper nodes. They suit single app terminals rather than multitasking towers.
Past LGA 1151 budget desktops move to LGA 1200. The 9100T covers low heat quad core offices where 35 W must suffice.
Frequently asked questions
What socket does the Core i3-9100T use?
It uses LGA 1151 on revision 2 boards with 300 series chipsets.
How many cores does the 9100T have?
Four cores without Hyper-Threading give four threads. Base is 3.1 GHz with boost to 3.7 GHz.
What does the T suffix mean?
The T suffix marks low power 35 W tuning for small towers. The 9100E is the 65 W embedded version.
Which graphics does the 9100T include?
UHD Graphics 630 from 350 MHz to 1100 MHz.
What memory does the 9100T support?
DDR4-2400 in two channels up to 64 GB per Intel.
Sources and verification
Facts last checked against these sources on . Page last edited on .