AMD Opteron X2 285 socket: Socket 940
The AMD Opteron X2 285 uses the Socket 940 socket. It is a 95 W dual-core Italy server part at 2.6 GHz with 1 MB of L2 per core for dual-processor racks.
- Socket
- Socket 940
- Launched
- March 2006
- Cores and threads
- 2 and 2
- Default TDP
- 95 W
- Codename
- Italy
- Segment
- Server
- Family
- AMD Opteron
- Clocks
- 2.6 GHz
AMD Opteron X2 285 specifications
| Cores | 2 |
|---|---|
| Threads | 2 |
| Core architecture | Italy cores on 90 nm |
| Clocks | 2.6 GHz (no turbo) |
| Cache | 2 MB L2 (2x1 MB) |
| Default TDP | 95 W |
| Manufacturing process | 90 nm |
| Memory support | Registered DDR, through the on-chip controller |
| PCI Express | PCIe from the board chipset |
| Integrated graphics | None |
| Multiplier | Locked |
| Package | Socket 940 (940-pin OPGA) |
Motherboard compatibility
AMD Opteron X2 285 needs a motherboard with a Socket 940 socket. Chipset by chipset data for this codename is not recorded yet. See the Socket 940 chipset list and the board maker's CPU support list.
Socket 940 at a glance
| Type | PGA, 940 contacts |
|---|---|
| Package size | 40 × 40 mm |
| Introduced | 2003 |
| Memory | Registered DDR, through the on-chip controller |
| Cooler mounting holes | Board specific (server heatsink) |
What the Opteron X2 285 is
The AMD Opteron X2 285 is a 2.6 GHz dual-core server processor from March 2006. It runs two K8 cores at 2.6 GHz with no turbo, so 2 cores give 2 threads. Cache is 1 MB of L2 per core on a 90 nm process. Power is rated at 95 W on Socket 940.
The 285 served performance Italy servers on a 1000 MT/s HyperTransport link at about 1051 dollars launch price. It exists because dual-processor buyers wanted 2.6 GHz throughput with the full cache at the standard 95 W.
Socket and motherboard compatibility
The X2 285 fits Socket 940 dual-processor server boards with a BIOS that lists Italy dual cores. It suits performance racks qualified for 95 W parts. Check the server maker CPU list for the exact board and stepping. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Memory, PCIe and cooling
Memory is registered DDR through the on-chip controller.
HyperTransport at 1000 MT/s links the CPU to the chipset and other sockets. PCIe slots hang off the chipset.
Cooling uses vendor qualified server heatsinks for the 95 W envelope with directed airflow.
Upgrade paths
On Socket 940 the upgrade is the Opteron X2 290 at 2.8 GHz with the same cache at 95 W, or the AMD Opteron X2 275 HE at 2.2 GHz for 55 W operation. Beyond Socket 940 a move to Socket F needs new boards and DDR2 memory.
Frequently asked questions
What socket does the Opteron X2 285 use?
Socket 940, in dual-processor server boards with Italy support.
How many cores does the Opteron X2 285 have?
Two cores and 2 threads at 2.6 GHz with 1 MB of L2 per core.
What memory works with the Opteron X2 285?
Registered DDR through the on-chip controller.
Sources and verification
Facts last checked against these sources on . Page last edited on .