Intel Celeron G4950 socket: LGA 1151
The Intel Celeron G4950 uses the LGA 1151 socket on revision 2 boards. It is a locked 54 W dual-core chip, the fastest Celeron of its generation, for budget PCs on 300 series boards.
- Socket
- LGA 1151 (revision 2)
- Launched
- April 2019
- Cores and threads
- 2 and 2
- Base power
- 54 W
- Codename
- Coffee Lake
- Segment
- Desktop
- Family
- Intel Celeron
- Clocks
- 3.3 / 3.3 GHz
Intel Celeron G4950 specifications
| Cores | 2 |
|---|---|
| Threads | 2 (no Hyper-Threading) |
| Core architecture | Skylake based cores on 14 nm |
| Clocks | 3.3 GHz (no Turbo Boost) |
| Cache | 2 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 54 W |
| Manufacturing process | 14 nm |
| Memory support | DDR4 up to 2400 MT/s, two channels, up to 64 GB |
| PCI Express | 16 lanes from the CPU, PCIe 3.0 |
| Integrated graphics | Intel UHD Graphics 610 (350 MHz to 1.05 GHz) |
| Multiplier | Locked |
| ECC memory | Supported |
| Package | FCLGA1151 |
Motherboard and chipset compatibility
Intel Celeron G4950 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 | Works out of the box |
| 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 Celeron G4950 is
The Celeron G4950 sits at the top of the Coffee Lake Celeron range that Intel released in April 2019. Its two cores run at a fixed 3.3 GHz with no Turbo Boost, which makes it the quickest dual-core Celeron on the LGA 1151 socket. Cache is 2 MB of shared L3, matching the rest of the Celeron line.
The 100 MHz advantage over the G4930 is small on paper and shows mainly in single-threaded office tasks that never touch more than one core. At 54 W it uses the same stock cooling and the same boards as its slower sibling. The multiplier is locked and the chip is built on the 14 nm process.
Intel UHD Graphics 610 runs from 350 MHz to 1.05 GHz with support for three displays and 4K output at 60 Hz over DisplayPort. That makes the G4950 a fair choice for a living room PC that plays stored video on a large screen. ECC memory is supported to 64 GB for basic server duty.
Socket and motherboard compatibility
The G4950 fits the LGA 1151 socket on revision 2 boards only. H310, B360, H370, Q370 and Z370 boards accept it, and B365 and Z390 boards take it with the shipping BIOS. Revision 1 boards with 100 or 200 series chipsets never support it.
B360 boards suit it well, since they add USB ports and storage options over entry H310 models without the cost of overclocking boards. The locked multiplier means Z series boards buy ports and audio rather than speed. Either way the board should come from the 300 series.
Because the G4950 arrived with the spring 2019 refresh wave, very early Z370 boards may need a BIOS update first. Check the maker CPU support list for the minimum version before fitting the chip. The Socket vs chipset: what decides whether a CPU works guide covers the revision split behind this requirement.
Memory, PCIe and cooling
The memory controller supports DDR4 up to 2400 MT/s over two channels with a 64 GB ceiling. For a budget PC, two 4 GB modules give dual-channel operation at low cost, while a single 8 GB module leaves a slot free for later. ECC modules are supported where the board allows it.
Sixteen PCIe 3.0 lanes leave room for a low profile discrete card or an NVMe SSD beside the integrated graphics. A media PC can boot from a small NVMe drive while films sit on a large hard drive off the chipset SATA ports. Cooling uses the 75 mm LGA 1151 pattern from the CPU cooler compatibility by socket guide.
At 54 W the boxed cooler holds temperatures with basic case airflow, and a tower cooler only buys quieter operation. Keep the front intake clear and fit at least one exhaust fan so warm air leaves the case instead of circling past the cooler.
Upgrade paths
Within the Celeron line there is nowhere higher to go, so the next step is a Pentium Gold such as the G5420, which adds Hyper-Threading for four threads at the same 54 W. The Core i3-9300 in Intel Core i3-9300 form doubles physical cores to four for heavier desks. Both reuse the same board and memory.
Further up, the Intel Core i5-9400 brings six cores and the Intel Core i9-9900K marks the ceiling of revision 2 on boards with solid power delivery. Used prices decide which jump makes sense, since all three share the socket.
Beyond LGA 1151 a new board is required, as LGA 1200 processors use a different socket. The G4950 holds its own for browsing and video, so most owners skip further Celeron spending and save any upgrade budget for a Core chip or a full platform change.
Frequently asked questions
What socket does the Intel Celeron G4950 use?
It uses LGA 1151 on revision 2 boards with 300 series chipsets, written FCLGA1151 in Intel documents.
What is the difference between the G4950 and the G4930?
The G4950 runs at 3.3 GHz, which is 100 MHz above the G4930. Both share 2 MB of cache, a 54 W rating and UHD 610 graphics.
Is the G4950 enough for a home PC?
Yes for browsing, documents, video calls and 4K media playback over DisplayPort. Multitasking beyond a few applications calls for a Pentium or Core chip.
What memory does the G4950 support?
Officially up to DDR4-2400 over two channels, with a 64 GB ceiling. ECC modules are supported where the board allows it.
Which motherboard suits the G4950?
Any 300 series board works, with H310 and B360 the expected picks. Check the CPU support list for the minimum BIOS on early Z370 stock.
Sources and verification
Facts last checked against these sources on . Page last edited on .