AMD Opteron X2 265 socket: Socket 940
The AMD Opteron X2 265 uses the Socket 940 socket. It is a 95 W dual-core Italy server part at 1.8 GHz with 1 MB of L2 per core for dual-processor racks.
- Socket
- Socket 940
- Launched
- May 2005
- Cores and threads
- 2 and 2
- Default TDP
- 95 W
- Codename
- Italy
- Segment
- Server
- Family
- AMD Opteron
- Clocks
- 1.8 GHz
AMD Opteron X2 265 specifications
| Cores | 2 |
|---|---|
| Threads | 2 |
| Core architecture | Italy cores on 90 nm |
| Clocks | 1.8 GHz (no turbo) |
| Cache | 2 MB L2 (2x1 MB) |
| Default TDP | 95 W |
| Manufacturing process | 90 nm |
| Memory support | Registered DDR, two channels |
| PCI Express | PCIe from the board chipset |
| Integrated graphics | None |
| Multiplier | Locked |
| Package | Socket 940 (940-pin OPGA) |
Motherboard compatibility
AMD Opteron X2 265 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 265 is
The AMD Opteron X2 265 is a 1.8 GHz dual-core server processor from May 2005. It runs two K8 cores at 1.8 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 265 opened the Italy 200 series with registered DDR memory on a 1000 MT/s HyperTransport link at about 851 dollars launch price. It exists because dual-processor buyers wanted an entry Italy dual core with the full cache.
Socket and motherboard compatibility
The X2 265 fits Socket 940 dual-processor server boards with a BIOS that lists Italy parts. It suits entry racks qualified for 95 W parts with registered DDR slots. 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 in two channels 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 270 at 2 GHz with the same 2 MB cache at 95 W, or the AMD Opteron X2 265 HE at 1.8 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 265 use?
Socket 940, in dual-processor server boards with Italy support.
How many cores does the Opteron X2 265 have?
Two cores and 2 threads at 1.8 GHz with 1 MB of L2 per core.
What memory works with the Opteron X2 265?
Registered DDR in two channels through the on-chip controller.
Sources and verification
Facts last checked against these sources on . Page last edited on .