Intel Celeron G550 socket: LGA 1155
The Intel Celeron G550 uses the LGA 1155 socket. It is a 65 W dual core Sandy Bridge desktop part at 2.6 GHz.
- Socket
- LGA 1155
- Launched
- June 2012
- Cores and threads
- 2 and 2
- Base power
- 65 W
- Codename
- Sandy Bridge
- Segment
- Desktop
- Family
- Intel Celeron
- Clocks
- 2.6 GHz
Intel Celeron G550 specifications
| Cores | 2 |
|---|---|
| Threads | 2 |
| Core architecture | Sandy Bridge cores on 32 nm |
| Clocks | 2.6 GHz (no turbo) |
| Cache | 2 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 65 W |
| Manufacturing process | 32 nm |
| Memory support | DDR3-1066, two channels, up to 32 GB |
| PCI Express | PCIe 2.0 from the CPU |
| Integrated graphics | Intel HD Graphics (850 MHz to 1000 MHz) |
| Multiplier | Locked |
| Package | FCLGA1155 (37.5 × 37.5 mm) |
Motherboard and chipset compatibility
Intel Celeron G550 needs a motherboard with a LGA 1155 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| 7 series | Z77, Z75, H77, B75, Q77, Q75 | Works out of the box |
| 6 series: H61, H67, P67, Z68 | Z68, P67, H67, H61 | Works out of the box |
| 6 series business: B65, Q65, Q67 | Q67, Q65, B65 | 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 1155.
LGA 1155 at a glance
| Type | LGA, 1,155 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | January 2011 |
| Memory | DDR3 |
| Cooler mounting holes | 75 × 75 mm |
What the Celeron G550 is
Intel Celeron G550 is a dual core Sandy Bridge desktop processor that Intel released in June 2012 for office towers. It runs at a fixed 2.6 GHz with no turbo, with 2 MB Intel Smart Cache and 2 threads from two cores. Power is rated at 65 W on a 32 nm process. No Hyper-Threading is present, so threads equal cores.
Graphics are Intel HD Graphics for 2nd Gen at 850 MHz to 1000 MHz. The higher base over the G465 steadies display work in office suites. The chip takes DDR3 at 1066 MT/s in two channels, which matches the low cost boards it pairs with.
Fixed clocks keep fleet images predictable. Towers pair it with H61 or B75, 4 GB of DDR3 and a spinning drive or small SSD. The How to find your CPU socket type guide helps confirm the socket before a board swap.
Socket and motherboard compatibility
The Celeron G550 fits LGA 1155 in FCLGA1155 form. Both 6 series and 7 series boards boot Sandy Bridge directly, so H61, H67, P67, Z68, B75, H77 and Z77 all work without a special update. Business B65, Q65 and Q67 boards accept it as well.
At 65 W the chip suits standard office boards with stock cooling. Display outputs on the board decide how the HD Graphics block is used. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules, and Intel Celeron G1610 shows a later Ivy Celeron on the same socket.
Memory, PCIe and cooling
Memory support is DDR3-1066, two channels, up to 32 GB. Office builds with 4 GB rarely stress the link, while two matched DIMMs still help the shared graphics block. ECC is not supported.
PCI Express is revision 2.0 from the CPU on Sandy Bridge. Most builds stay on integrated graphics for office monitors. A low profile card fits where extra outputs are needed.
Cooling follows the 65 W desktop pattern with a stock push pin heatsink. The 75 × 75 mm mount accepts common LGA replacements. Keep slim case vents clear for quiet operation.
Upgrade paths
On LGA 1155 the Celeron G550 can move to faster duals, quads and i3 parts on the same board. Examples include Pentium duals and Core i3 chips with Hyper-Threading, or Ivy Celeron parts where the BIOS is current. Memory and storage carry over.
A platform move to DDR4 boards such as LGA 1200 needs a new board and RAM. Keep the G550 board for classroom or terminal duty where dual Sandy cores still work.
Frequently asked questions
What socket does the Intel Celeron G550 use?
It uses LGA 1155. Both 6 series and 7 series boards boot it directly.
Does the Celeron G550 have Hyper-Threading?
No. Two cores give 2 threads at a fixed 2.6 GHz.
What memory does the Celeron G550 use?
DDR3-1066, two channels, up to 32 GB. ECC is not supported.
Is the Celeron G550 unlocked?
No. The multiplier is locked.
Sources and verification
Facts last checked against these sources on . Page last edited on .