Intel Core i5-680 socket: LGA 1156
The Intel Core i5-680 uses the LGA 1156 socket. It is a 73 W dual core Clarkdale desktop part at 3.6 GHz with Turbo Boost to 3.866 GHz, Hyper-Threading and 4 MB of L3 cache.
- Socket
- LGA 1156
- Launched
- April 2010
- Cores and threads
- 2 and 4
- Base power
- 73 W
- Codename
- Clarkdale
- Segment
- Desktop
- Family
- Intel Core i5
- Clocks
- 3.6 / 3.87 GHz
Intel Core i5-680 specifications
| Cores | 2 |
|---|---|
| Threads | 4 |
| Core architecture | Clarkdale cores on 32 nm |
| Clocks | 3.6 GHz base, 3.866 GHz Turbo Boost |
| Cache | 512 KB L2 (2 × 256 KB), 4 MB shared L3 |
| Processor base power (TDP) | 73 W |
| Manufacturing process | 32 nm CPU, 45 nm graphics |
| Memory support | DDR3-1333, two channels |
| PCI Express | PCIe 2.0 x16 from the package |
| Integrated graphics | HD Graphics (on package) |
| Multiplier | Locked |
| Package | LGA1156 |
Motherboard and chipset compatibility
Intel Core i5-680 needs a motherboard with a LGA 1156 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| 5 series with graphics | H55, H57, Q57 | Works out of the box |
| P55 performance | P55 | Works out of the box Onboard video ports stay dark on P55. Use a separate graphics card. |
Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for LGA 1156.
LGA 1156 at a glance
| Type | LGA, 1,156 contacts |
|---|---|
| Package size | n/a |
| Introduced | September 2009 |
| Memory | DDR3-1066 and 1333, two channels, up to 16 GB |
| Cooler mounting holes | 75 × 75 mm |
What the Core i5-680 is
The Intel Core i5-680 is a dual core Clarkdale desktop processor from April 2010. It runs two Westmere cores at 3.6 GHz base with Turbo Boost to 3.866 GHz, with Hyper-Threading for four threads. Each core carries 256 KB of L2 cache with 4 MB of shared L3 cache. Power is rated at 73 W.
The 680 is the fastest Clarkdale dual core, above the 670 on base and turbo at the same 73 W. Against Lynnfield quads it trails in rendering but leads in single threaded bursts per clock. HD Graphics cover office displays.
Memory is DDR3-1333 in two channels.
Socket and motherboard compatibility
The Core i5-680 fits LGA 1156 with 1156 lands. H55, H57 and P55 boards boot it natively with a mid 2010 BIOS.
The Socket vs chipset: what decides whether a CPU works guide covers pairing rules, and the Intel Pentium G6950 page shows the Pentium alternative.
Memory, PCIe and cooling
Memory is DDR3-1333 in two channels up to 16 GB.
PCIe 2.0 x16 comes from the package.
Cooling is the stock 73 W LGA 1156 sink.
Upgrade paths
On LGA 1156 the upgrade is a Lynnfield quad on P55 boards. Beyond LGA 1156 a move to Sandy Bridge needs a new board.
Frequently asked questions
What socket does the Core i5-680 use?
LGA 1156, the 1156-land package on 5 series boards.
How many cores does the Core i5-680 have?
Two cores and four threads at 3.6 GHz base with Turbo Boost to 3.866 GHz, with 256 KB of L2 per core and 4 MB of shared L3 cache.
What memory works with the Core i5-680?
DDR3-1333 in two channels.
Sources and verification
Facts last checked against these sources on . Page last edited on .