AMD A4-3400 socket: Socket FM1
The AMD A4-3400 uses the Socket FM1 socket. It is a 65 W dual core Llano APU at 2.7 GHz with Radeon HD 6410D graphics.
- Socket
- Socket FM1
- Launched
- September 2011
- Cores and threads
- 2 and 2
- Default TDP
- 65 W
- Codename
- Llano
- Segment
- Desktop
- Family
- AMD A4
- Clocks
- 2.7 GHz
AMD A4-3400 specifications
| Cores | 2 |
|---|---|
| Threads | 2 |
| Core architecture | Stars (K10) cores on 32 nm |
| Clocks | 2.7 GHz (no turbo) |
| Cache | 1 MB L2 (512 KB per core) |
| Default TDP | 65 W |
| Manufacturing process | 32 nm |
| Memory support | DDR3 up to 1866 MT/s, two channels |
| PCI Express | PCIe 2.0 from the APU |
| Integrated graphics | AMD Radeon HD 6410D (600 MHz) |
| Multiplier | Locked |
| Package | Socket FM1 (PGA, 905 contacts) |
Motherboard and chipset compatibility
AMD A4-3400 needs a motherboard with a Socket FM1 socket. The table shows which chipset series accept it.
| Series | Chipsets | Support |
|---|---|---|
| Hudson FCH (A55 and A75) | A75, A55 | Works out of the box |
Board makers publish a CPU support list for every model. Check it for your exact board before buying. Chipset details for Socket FM1.
Socket FM1 at a glance
| Type | PGA, 905 contacts |
|---|---|
| Package size | n/a |
| Introduced | June 2011 |
| Memory | DDR3-1600 and 1866, two channels |
| Cooler mounting holes | 48 × 96 mm |
What the A4-3400 is
AMD A4-3400 is a dual core Llano APU that AMD released in September 2011 for socketed desktops. It uses the Stars K10 core design on a 32 nm process, running at 2.7 GHz with no turbo. The cache is 1 MB of L2 with 512 KB per core. Power is 65 W. Graphics come from AMD Radeon HD 6410D with 160 shaders at 600 MHz.
The 200 MHz CPU step and the faster 600 MHz graphics over the A4-3300 mark a straight speed bump at the same power. Two cores cover office multitasking while the stronger graphics block smooths video playback and light games. Threads equal cores at 2.
Towers pair it with A55 or A75 boards, 4 GB of DDR3 and a SATA drive for a direct office feel. Fixed clocks keep behavior predictable for fleets. The LGA, PGA and BGA: CPU package types explained guide places this PGA desktop part against BGA mobile forms.
Socket and motherboard compatibility
The A4-3400 drops into Socket FM1 on A55 and A75 boards. The board BIOS must list the exact A4-3400 string, since late 2011 models postdate early FM1 firmware. DDR3 modules match stock operation.
Power at 65 W suits standard desktop boards. The Socket vs chipset: what decides whether a CPU works guide covers AMD pairing rules.
Memory, PCIe and cooling
Memory support is DDR3 up to 1866 MT/s, two channels. Two matched modules feed the cores and shared graphics. Faster DIMMs help the 600 MHz block most.
PCI Express is PCIe 2.0 from the APU for one graphics slot. Most builds stay on integrated graphics alone.
Cooling follows the 65 W rating with a stock heatsink. The 48 by 96 mm mount matches older AMD coolers.
Upgrade paths
On Socket FM1 the A4-3400 can step to faster Llano APUs or Athlon quads on the same board. Memory and storage carry over. A slower dual core reference on the same socket is AMD A4-3300.
A platform move to Socket FM2 needs a new board while DDR3 memory often carries over. Keep the FM1 board for secondary duty.
Frequently asked questions
What socket does the AMD A4-3400 use?
It uses Socket FM1. Check the board maker CPU support list for the minimum BIOS.
How is the A4-3400 different from the A4-3300?
Base is 2.7 GHz instead of 2.5 GHz, and graphics run at 600 MHz instead of 444 MHz.
What memory does the A4-3400 use?
DDR3 up to 1866 MT/s, two channels.
Does the A4-3400 need a separate graphics card?
No. Radeon HD 6410D at 600 MHz covers office displays and video.
Sources and verification
Facts last checked against these sources on . Page last edited on .