Intel Pentium Gold G6405 socket: LGA 1200
The Intel Pentium Gold G6405 uses the LGA 1200 socket. It is a locked 58 W dual-core Comet Lake processor for budget office desktops, with DDR4 memory throughout.
- Socket
- LGA 1200
- Launched
- March 2021
- Cores and threads
- 2 and 4
- Base power
- 58 W
- Codename
- Comet Lake
- Segment
- Desktop
- Family
- Intel Pentium Gold
- Clocks
- 4.1 GHz
Intel Pentium Gold G6405 specifications
| Cores | 2 |
|---|---|
| Threads | 4 |
| Core architecture | Skylake (Comet Lake) |
| Clocks | 4.1 GHz fixed, no boost |
| Cache | 4 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 58 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 G6405 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 G6405 is
The Pentium Gold G6405 is a 2-core desktop processor that Intel released in March 2021 with the Comet Lake refresh range. Its cores run 4.1 GHz fixed with Hyper-Threading for 4 threads and no boost. Cache is 4 MB of Intel Smart Cache.
The chip holds the highest fixed clock of the G6400 pair at 58 W. The extra 600 MHz over the T part helps single office tasks that never use boost, such as document work and web forms. The 14 nm process and locked multiplier keep the focus on low cost per seat.
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 G6405 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.
Budget office boards with B460 and H410 chipsets pair well when Rocket Lake is not planned. The Intel Z490 chipset compatible list names the G6405 at 4.10 GHz with 4 MB cache as a supported 58 W part. B560 boards work as well for new stock with more USB ports.
Check power supply headroom when fitting many systems in one room. The 58 W envelope needs standard tower airflow, unlike the 35 W T parts that suit slim cases.
Memory, PCIe and cooling
The memory controller supports DDR4 up to 2666 MT/s only. Two channels carry up to 128 GB. Budget builds often used 1 by 8 GB DDR4-2666, with a second stick added for dual channel when integrated graphics drive the panel.
The CPU supplies 16 PCIe 3.0 lanes for graphics and storage through the board. Office towers without a discrete card still use the slots for add in cards. The board specifications state lane sharing between slots.
At 58 W, a stock Intel cooler with airflow suffices. Mounting uses the 75 mm LGA 1200 pattern from the CPU cooler compatibility by socket guide. A small tower cooler lowers noise under long loads but is not required for office use.
Upgrade paths
Against the Intel Core i5-11400, the G6405 trades cores and burst clocks for low cost. The i5 part suits multitasking with 6 cores, while this dual-core part suits single task office seats and terminals. 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 G6405 fits a call center seat, a library terminal, or a home office box with integrated graphics.
For used buyers, the 58 W Pentium makes sense when the tower can cool it and the workload stays light. 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 G6405 use?
It uses LGA 1200, written FCLGA1200 in Intel documents.
How many cores does the Intel Pentium Gold G6405 have?
2 cores with 4 threads at 4.1 GHz fixed and no boost, with 4 MB of Intel Smart Cache.
What memory does the Intel Pentium Gold G6405 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 G6405 include?
Intel UHD Graphics 610 up to 1.05 GHz for office panels and basic media playback.
What is the TDP of the Intel Pentium Gold G6405?
58 W. A stock Intel cooler with airflow suffices in a standard tower.
Sources and verification
Facts last checked against these sources on . Page last edited on .