Socket FM2+

Socket FM2+

Type	µPGA-ZIF
Chip form factors	PGA
Contacts	906
This article is part of the CPU socket series

Socket FM2+ (FM2b) is a CPU socket used by AMD's desktop "Kaveri" APUs (Steamroller-based) and Godavari APUs (Steamroller-based) to connect to the motherboard. The FM2+ has a slightly different pin configuration to Socket FM2 with two additional pin sockets. Socket FM2+ APUs are not compatible with Socket FM2 motherboards due to the aforementioned additional pins. However, socket FM2 APUs such as "Richland" and "Trinity" are compatible with FM2+ socket.^[1]

• ECC DIMMs are supported on Socket FP3 but not supported on the Socket FM2+ package. GDDR5 or HBM memory are not supported.^[2]
• There are 3 PCI Express cores: one 2 x16 core and two 5 x8 cores, for a total of 64 lanes. There are 8 configurable ports, which can be divided into 2 groups:
  • Gfx-group: contains 2 x8 ports. Each port can be limited to lower link widths for applications that require fewer lanes. Additionally, the two ports can be combined to create a single x16 link.
  • GPP-group: contains 1 x4 UMI and 5 General Purpose Ports (GPP).

All PCIe links are capable of supporting PCIe 2.x data rates. In addition, the Gfx link is capable of supporting PCIe 3.x data rate.^[2]

For available chipsets consult Fusion controller hubs (FCH).

Its mobile counterpart is Socket FP3 (BGA-???).

Feature overview

Features of AMD Accelerated Processing Units

Brand	Llano	Trinity	Richland	Kaveri	Carrizo	?		Desna, Ontario, Zacate	Kabini, Temash	Beema, Mullins	Carrizo-L
Platform	Desktop, Mobile			Desktop, Mobile	Mobile	Desktop		Ultra-mobile
Released	Aug 2011	Oct 2012	Jun 2013	Jan 2014	Jun 2015	2016?		Jan 2011	May 2013	Q2 2014	May 2015
Fab (nm)	GlobalFoundries 32 nm SOI			28		14/16nm		TSMC 40 nm	28
Die size (mm^2)	228	246		245	244.62	?		75 (+ 28 FCH)	~107		TBA
Socket	FM1, FS1	FM2, FS1+, FP2		FM2+, FP3	FP4	AM4		FT1	AM1, FT3	FT3b	FP4
CPU architecture	AMD 10h	Piledriver		Steamroller	Excavator	Zen		Bobcat	Jaguar	Puma	Puma+[3]
Memory support	DDR3-1866 DDR3-1600 DDR3-1333		DDR3-2133 DDR3-1866 DDR3-1600 DDR3-1333			?		DDR3L-1333 DDR3L-1066	DDR3L-1866 DDR3L-1600 DDR3L-1333 DDR3L-1066		DDR3L-1866 DDR3L-1600 DDR3L-1333
3D engine^1	TeraScale 2 (VLIW5)	TeraScale 3 (VLIW4)		GCN 1.1 (Mantle, HSA)	GCN 1.2	?		TeraScale 2 (VLIW5)	GCN1.1		GCN
	400:20:8	up to 384:24:6		up to 512:32:8		?		80:8:4	128:8:4		TBA
	IOMMUv1			IOMMUv2				IOMMUv1	IOMMUv1[4]		TBA
Unified Video Decoder	UVD 3			UVD 4.2	UVD 6	?		UVD 3	UVD 4	UVD 4.2	TBA
Video Coding Engine	N/A	VCE 1.0		VCE 2.0	VCE 3.0	?		N/A	VCE 2.0		TBA
Power saving GPU	PowerPlay	PowerTune						?
Max. № of displays^2	2–3	2–4		2–4	3	?		2	2		TBA
TrueAudio	N/A			✔[5]				N/A[4]			TBA
FreeSync	N/A			✔				?
Direct Rendering Manager / Mesa 3D driver[6][7]	✔[7]					WIP		✔

• ¹ Unified shaders : Texture mapping units : Render output units
• ² To feed more than two displays, the additional panels must have native DisplayPort support.^[8] Alternatively active DisplayPort-to-DVI/HDMI/VGA adapters can be employed

External links

1. Niels Broekhuijsen. "Report: Upcoming Socket FM2+ Will Support Older Trinity and Richland APUs". Tom's Hardware.
2. "49125_15h_Models_30h-3Fh_BKDG" (pdf). AMD.
3. "AMD Mobile “Carrizo” Family of APUs Designed to Deliver Significant Leap in Performance, Energy Efficiency in 2015" (Press release). 2014-11-20. Retrieved 2015-02-16.
4. Thomas De Maesschalck (2013-11-14). "AMD teases Mullins and Beema tablet/convertibles APU". Retrieved 2015-02-24.
5. "A technical look at AMD’s Kaveri architecture". Semi Accurate. Retrieved 6 July 2014.
6. Airlie, David (2009-11-26). "DisplayPort supported by KMS driver mainlined into Linux kernel 2.6.33". Retrieved 2014-07-02.
7. "Radeon feature matrix". freedesktop.org. Retrieved 2016-01-10.
8. "How do I connect three or More Monitors to an AMD Radeon™ HD 5000, HD 6000, and HD 7000 Series Graphics Card?". AMD. Retrieved 2014-12-08.