Intel Pentium Gold G6405T socket: LGA 1200
The Intel Pentium Gold G6405T uses the LGA 1200 socket. It is a locked 35 W dual-core Comet Lake processor for small office desktops, with DDR4 memory throughout.
- Socket
- LGA 1200
- Launched
- March 2021
- Cores and threads
- 2 and 4
- Base power
- 35 W
- Codename
- Comet Lake
- Segment
- Desktop
- Family
- Intel Pentium Gold
- Clocks
- 3.5 GHz
Intel Pentium Gold G6405T specifications
| Cores | 2 |
|---|---|
| Threads | 4 |
| Core architecture | Skylake (Comet Lake) |
| Clocks | 3.5 GHz fixed, no boost |
| Cache | 4 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 35 W |
| Manufacturing process | 14 nm |
| Memory support | DDR4 up to 2666 MT/s, two channels, up to 128 GB |
| PCI Express | 16 lanes from the CPU: PCIe 3.0 |
| Integrated graphics | Intel UHD Graphics 610 (up to 1.05 GHz) |
| Multiplier | Locked |
| Package | FCLGA1200 |
| Launch price | $77 (Intel RCP) |
Motherboard and chipset compatibility
Intel Pentium Gold G6405T needs a motherboard with a LGA 1200 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| 500 series | Z590, H570, B560, H510, Q570, W580 | Works out of the box |
| 400 series: Z490, H470, Q470, W480 | Z490, H470, Q470, W480 | Works out of the box |
| 400 series: B460, H410 | B460, H410 | 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 1200.
LGA 1200 at a glance
| Type | LGA, 1,200 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | April 2020 |
| Memory | DDR4 only |
| Cooler mounting holes | 75 × 75 mm |
What the Pentium Gold G6405T is
The Pentium Gold G6405T is a 2-core desktop processor that Intel released in March 2021 with the Comet Lake refresh range. Its cores run 3.5 GHz fixed with Hyper-Threading for 4 threads and no boost. Cache is 4 MB of Intel Smart Cache.
The T suffix marks a 35 W envelope for small cases and quiet office systems. The chip keeps the 14 nm process of the 58 W parts, with lower clocks for heat and noise. Memory support stays at DDR4-2666, and PCIe stays at Gen3 from the CPU.
Intel UHD Graphics 610 handle display output, with base 350 MHz and boost to 1.05 GHz. The multiplier is locked. The launch price was $77 (Intel RCP). The socket package is FCLGA1200 at 37.5 × 37.5 mm.
Socket and motherboard compatibility
The G6405T fits the LGA 1200 socket. Boards with 400 series chipsets (Z490, H470, B460, H410, Q470, W480) accept it with the shipping BIOS. Boards with 500 series chipsets (Z590, H570, B560, H510) also accept it, since the platform keeps Comet Lake support across both series.
Small office boards with H410 and B460 chipsets pair well when Rocket Lake is not planned. The Intel Z490 chipset compatible list names the G6405T at 3.50 GHz with 4 MB cache as a supported 35 W part. B560 small boards work as well for new stock.
Check cooler height when fitting slim cases. The 35 W envelope suits low profile coolers that cannot handle 58 W parts.
Memory, PCIe and cooling
The memory controller supports DDR4 up to 2666 MT/s only. Two channels carry up to 128 GB. Office builds often used a single 8 GB DDR4-2666 stick, with a second stick added for dual channel when integrated graphics drive two displays.
The CPU supplies 16 PCIe 3.0 lanes for graphics and storage through the board. Office systems without a discrete card still use the board slots for network and storage cards. The board specifications state lane sharing between slots.
At 35 W, a low profile cooler with airflow suffices. Mounting uses the 75 mm LGA 1200 pattern from the CPU cooler compatibility by socket guide. A stock Intel cooler for 35 W parts runs quietly in office use.
Upgrade paths
Against the Intel Core i5-11400, the G6405T trades cores and burst clocks for low cost and low heat. The i5 part suits multitasking with 6 cores, while this dual-core part suits single office tasks, web terminals and point of sale. Both share the same socket but target different budgets.
Moving to LGA 1700 needs a new board, new memory for DDR5 builds, and a new cooler bracket. The G6405T fits a reception PC, a back office box, or a school terminal with integrated graphics.
For used buyers, the T part makes sense when the case or power supply limits heat. When more threads are needed on the same board, a used i3 of the same era adds cores without changing the platform.
Frequently asked questions
What socket does the Intel Pentium Gold G6405T use?
It uses LGA 1200, written FCLGA1200 in Intel documents.
How many cores does the Intel Pentium Gold G6405T have?
2 cores with 4 threads at 3.5 GHz fixed and no boost, with 4 MB of Intel Smart Cache.
What memory does the Intel Pentium Gold G6405T support?
DDR4 up to 2666 MT/s in two channels, up to 128 GB. No DDR5 on this platform.
What graphics does the Intel Pentium Gold G6405T include?
Intel UHD Graphics 610 up to 1.05 GHz for office panels and two display setups.
What is the TDP of the Intel Pentium Gold G6405T?
35 W, with a 25 W configurable down option at lower base clocks. A low profile cooler with airflow suffices.
Sources and verification
Facts last checked against these sources on . Page last edited on .