AMD Athlon 64 FX-57 socket: Socket 939
The AMD Athlon 64 FX-57 uses the Socket 939 socket. It is a 104 W unlocked single-core San Diego enthusiast part at 2.8 GHz with 1 MB of L2 cache for flagship towers.
- Socket
- Socket 939
- Launched
- June 2005
- Cores and threads
- 1 and 1
- Default TDP
- 104 W
- Codename
- San Diego
- Segment
- Desktop
- Family
- AMD Athlon 64 FX
- Clocks
- 2.8 GHz
AMD Athlon 64 FX-57 specifications
| Cores | 1 |
|---|---|
| Threads | 1 |
| Core architecture | San Diego cores on 90 nm |
| Clocks | 2.8 GHz (no turbo) |
| Cache | 1 MB L2 |
| Default TDP | 104 W |
| Manufacturing process | 90 nm |
| Memory support | DDR, two channels |
| PCI Express | AGP or PCIe from the board chipset |
| Integrated graphics | None (board video where fitted) |
| Multiplier | Unlocked |
| Package | Socket 939 (939-pin OPGA) |
Motherboard compatibility
AMD Athlon 64 FX-57 needs a motherboard with a Socket 939 socket. Chipset by chipset data for this codename is not recorded yet. See the Socket 939 chipset list and the board maker's CPU support list.
Socket 939 at a glance
| Type | PGA, 939 contacts |
|---|---|
| Package size | 40 × 40 mm |
| Introduced | June 2004 |
| Memory | DDR, two channels, through the on-chip controller |
| Cooler mounting holes | Board specific (AMD retention frame) |
What the Athlon 64 FX-57 is
The AMD Athlon 64 FX-57 is a 2.8 GHz unlocked single-core enthusiast processor from June 2005. It runs one K8 core at 2.8 GHz with no turbo, so 1 core gives 1 thread. Cache is 1 MB of L2 on a 90 nm process. Power is rated at 104 W on Socket 939.
The FX-57 topped the San Diego FX line on a 1000 MT/s HyperTransport link with a 14x unlocked multiplier at about 1031 dollars launch price. It exists because enthusiasts wanted the fastest single-core gaming chip with an unlocked multiplier before dual-core FX parts arrived.
Socket and motherboard compatibility
The FX-57 drops into Socket 939 enthusiast boards with DDR memory and a BIOS that lists San Diego FX parts. Boards need voltage regulator support for the 104 W envelope. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Memory, PCIe and cooling
Memory is DDR in two channels through the on-chip controller.
HyperTransport at 1000 MT/s links the CPU to the chipset. PCIe or AGP slots hang off the chipset.
Cooling is a 104 W rated Socket 939 heatsink on the AMD retention frame, with CoolnQuiet trimming draw at idle.
Upgrade paths
On Socket 939 the upgrade is the AMD Athlon 64 FX-60 at 2.6 GHz for unlocked dual cores, or the AMD Athlon 64 3700+ at 2.2 GHz for a locked lower cost single core. Beyond Socket 939 a move to Socket AM2 needs a new board and DDR2 memory.
Frequently asked questions
What socket does the Athlon 64 FX-57 use?
Socket 939, on enthusiast DDR boards with San Diego FX support.
How many cores does the Athlon 64 FX-57 have?
One core and 1 thread at 2.8 GHz with 1 MB of L2 cache and an unlocked multiplier.
What memory works with the Athlon 64 FX-57?
DDR in two channels through the on-chip controller.
Sources and verification
Facts last checked against these sources on . Page last edited on .