AMD FirePro A320 socket: Socket FM2

What the FirePro A320 is

AMD FirePro A320 is a quad core Trinity workstation APU that AMD launched in August 2012 for entry desktop workstations. It uses the Piledriver core design on a 32 nm process, running at 3.8 GHz base with turbo to 4.2 GHz. The cache is 4 MB L2 (2 modules of 2 MB, no L3). Power is 100 W. Graphics come from AMD FirePro graphics (384 shaders at 800 MHz) with certified drivers for CAD applications.

The four cores sit in two Piledriver modules with 4 MB of shared L2, and threads equal cores at 4. The workstation graphics block shares system memory and carries ISV certifications for CAD and media applications that consumer drivers lack. Memory support is ddr3 up to 1866 mt/s, two channels. The APU die also carries PCIe 2.0, while SATA and USB come from the board chipset.

At 100 W the FirePro A320 fits mid towers with tower air cooling. The A320 multiplier is unlocked for board level tuning, unlike the locked A300. The How to find your CPU socket type guide shows how to confirm the socket before ordering parts.

Socket and motherboard compatibility

The FirePro A320 fits Socket FM2 on A55 through A85X boards, in workstation chassis from integrators. Consumer FM2 boards accept it after a BIOS check, but certified drivers and ISV support follow the workstation system. DDR3 modules match stock operation without tuning.

Power delivery suits the 100 W rating. A board that lists Trinity support is the safe choice. The CPU cooler compatibility by socket guide explains the 48 by 96 mm pattern shared with AM2, AM3 and FM1. Socket vs chipset: what decides whether a CPU works covers AMD pairing rules.

Memory, PCIe and cooling

Memory support is ddr3 up to 1866 mt/s, two channels across two channels, up to 32 GB per the AMD product brief. Two matched modules give the rated bandwidth, which also feeds the graphics block. Discrete Compute Offload pairs a FirePro card with the APU graphics for extended GPGPU work.

PCI Express is PCIe 2.0 from the APU for one graphics slot, with SATA and USB from the board chipset. Workstation builds may add a FirePro card alongside the APU graphics. Three independent display outputs run from the APU alone.

Cooling follows the 100 W rating. A tower air cooler with a 120 mm fan is the practical pick. The 48 by 96 mm mounting pattern is shared with AM2, AM3 and FM1.

Upgrade paths

Within Socket FM2 the FirePro A320 sits beside consumer Trinity APUs such as AMD A10-5800K. A same socket move to a consumer APU keeps the board but loses ISV certified drivers. For CAD duty the certified path matters more than raw clocks.

A platform move means a new socket. Later AMD workstation APUs moved to new sockets with DDR4 memory. That move needs a new board, new memory and often a new cooler bracket. Keep the FM2 workstation for secondary duty where it still runs certified apps.