Intel Celeron B820 socket: Socket G2
The Intel Celeron B820 uses the Socket G2 socket. It is a socketed 35 W dual core Sandy Bridge mobile part at 1.7 GHz.
- Socket
- Socket G2
- Launched
- July 2012
- Cores and threads
- 2 and 2
- Base power
- 35 W
- Codename
- Sandy Bridge
- Segment
- Mobile (socketed)
- Family
- Intel Celeron
- Clocks
- 1.7 GHz
Intel Celeron B820 specifications
| Cores | 2 |
|---|---|
| Threads | 2 |
| Core architecture | Sandy Bridge cores on 32 nm |
| Clocks | 1.7 GHz (no turbo) |
| Cache | 2 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 35 W |
| Manufacturing process | 32 nm |
| Memory support | DDR3-1066 and 1333, two channels, up to 16 GB |
| PCI Express | 16 lanes from the CPU, PCIe 2.0 |
| Integrated graphics | Intel HD Graphics (650 MHz to 1050 MHz) |
| Multiplier | Locked |
| Package | FCPGA988 (37.5 × 37.5 mm) |
Motherboard compatibility
Intel Celeron B820 needs a motherboard with a Socket G2 socket. Chipset by chipset data for this codename is not recorded yet. See the Socket G2 chipset list and the board maker's CPU support list.
Socket G2 at a glance
| Type | rPGA, 988 contacts |
|---|---|
| Package size | 37.5 × 37.5 mm |
| Introduced | January 2011 |
| Memory | DDR3 and DDR3L, two channels, 1066 to 1600 MT/s |
| Cooler mounting holes | Board specific (laptop heatsink) |
What the Celeron B820 is
Intel Celeron B820 is a dual core Sandy Bridge mobile processor that Intel released in July 2012 for low cost socketed laptops. It runs at a fixed 1.7 GHz with no turbo and no Hyper-Threading, so 2 cores give 2 threads. Cache is 2 MB Intel Smart Cache. Power is rated at 35 W on a 32 nm process. The 100 MHz step over the B815 is the only change in kind.
Graphics are Intel HD Graphics for Sandy Bridge at 650 MHz to 1050 MHz. The block covers laptop panels and video without a card. The controller takes DDR3 SODIMMs at 1066 or 1333 MT/s.
Small clock steps matter little alone, but the B820 arrived with fresher mid 2012 firmware and boards. Laptops pair it with HM76 or HM77 and small drives. The LGA, PGA and BGA: CPU package types explained guide contrasts this serviceable PGA part with soldered BGA twins.
Socket and motherboard compatibility
The Celeron B820 fits Socket G2 with 988 contacts in FCPGA988 form. Mobile 7 series HM76 and HM77 boards accept it directly, while 6 series HM65 and HM67 boards carry early Sandy designs. The BIOS must list the exact B820 string.
At 35 W any Socket G2 heatsink of that class covers it. The Socket vs chipset: what decides whether a CPU works guide explains the Sandy and Ivy board order.
Memory, PCIe and cooling
Memory support is DDR3-1066 and 1333, two channels, up to 16 GB. Two SODIMMs feed shared graphics. ECC is not supported.
PCI Express is 16 lanes from the CPU at PCIe 2.0 for Wi-Fi and storage. Most B820 bodies skip discrete graphics.
Cooling is a 35 W single fan design. Fresh paste during fan service holds the fixed 1.7 GHz behavior.
Upgrade paths
On Socket G2 the Celeron B820 can step to faster Celeron duals, Pentium parts and Core M chips where access and BIOS allow it. Memory and storage carry over. A close reference is Intel Celeron 1000M.
A platform move means a new laptop. Keep the old body for classroom duty after a wipe.
Frequently asked questions
What socket does the Intel Celeron B820 use?
It uses Socket G2 in FCPGA988 form.
How is the Celeron B820 different from the B815?
Base is 1.7 GHz instead of 1.6 GHz. Cache, power and graphics match.
What memory does the Celeron B820 use?
DDR3-1066 and 1333, two channels, up to 16 GB.
Can the Celeron B820 be replaced?
Yes, in socketed laptops with manual access and BIOS support.
Sources and verification
Facts last checked against these sources on . Page last edited on .