List of AMD chipsets

(Redirected from B450)

This is an overview of chipsets sold under the AMD brand, manufactured before May 2004 by the company itself, before the adoption of open platform approach as well as chipsets manufactured by ATI Technologies after October 2006 as the completion of the ATI acquisition.

AMD chipsets logo

North- and Southbridges

AMD Chipset logo, in use from around 2000 till 2011

Northbridges

AMD-xxx

ModelCode nameReleasedCPU supportFab (nm)FSB/HT (MHz)SouthbridgeFeatures / Notes
AMD-640 chipsetAMD-6401997K6,

Cyrix 6x86

?66

(FSB)

AMD-645AMD licensed VIA Technologies' Apollo VP2/97
AMD-750 chipsetAMD-7511999Athlon, Duron

(Slot A, Socket A), Alpha 21264

100

(FSB)

AMD-756,

VIA-VT82C686A

AGP 2×, SDRAM
Irongate chipset family; early steppings had issues with AGP 2×; drivers often limited support to AGP 1×; later fixed with "super bypass" memory access adjustment.[1]
AMD-760 chipsetAMD-761Nov 2000Athlon, Athlon XP, Duron

(Socket A), Alpha 21264

133

(FSB)

AMD-766,

VIA-T82C686B

AGP 4×, DDR SDRAM
AMD-760MP chipsetAMD-762May 2001Athlon MPAMD-766AGP 4×
AMD-760MPX chipsetAMD-768AGP 4×, Hardware RNG
Most initial boards shipped without USB headers due to a fault with the integrated USB controller. Manufacturers included PCI USB cards to cover this shortcoming. A later refresh of the chipset had the USB problem remedied.[2]
AMD-8000 series chipsetAMD-8111Apr 2004Opteron800

(HT 1.x)

AMD-8131

AMD-8132

Hardware RNG

A-Link Express and A-Link Express II are essentially PCIe 1.1 x4 lanes.

See Comparison of ATI Chipsets for the comparison of chipsets sold under the ATI brand for AMD processors, before AMD's acquisition of ATI.

ModelCodenameReleasedCPU supportFab (nm)HT (MHz)IGPCrossFireSouthbridgeFeatures / Notes
AMD 480X chipset
(originally CrossFire Xpress 1600)
RD480Oct 2006Athlon 64,
Sempron
1101000

(HT 2.0)

Nox8 + x8SB600,
ULi-M1575
?
AMD 570X/550X chipset
(originally CrossFire Xpress 3100)
RD570Jun 2007Phenom,[3] Athlon 64,
Sempron
?Nox16 + x8SB600
AMD 580X chipset
(originally CrossFire Xpress 3200)
RD580Oct 2006x16 + x16
AMD 690V chipsetRS690CFeb 2007Athlon 64,
Sempron
801000

(HT 2.0)

Radeon X1200
(350MHz)
NoSB600DirectX 9.0, AVIVO, HDMI/HDCP,
no LVDS
AMD 690G chipsetRS690Phenom, Athlon 64,
Sempron
Radeon X1250
(400MHz)
DirectX 9.0, AVIVO, HDMI/HDCP
AMD M690V chipsetRS690MCTurion 64 X2,
Athlon 64 X2 mobile
800

(HT 2.0)

Radeon X1200
(350 MHz)
NoDirectX 9.0, AVIVO, DVI, HDMI/HDCP,
no LVDS, Powerplay 7.0
AMD M690 chipsetRS690MRadeon X1250
(350 MHz)
DirectX 9.0, AVIVO, DVI/HDCP,
no HDMI, Powerplay 7.0
AMD M690E chipsetRS690TAthlon Neo,
Mobile Sempron
Radeon X1250
(350Mhz)
NoDirectX 9.0, AVIVO, 2× HDMI/HDCP,
Powerplay 7.0
AMD M690T chipsetTurion 64 X2,
Athlon 64 X2 mobile
Radeon X1270
(400Mhz)
DirectX 9.0, AVIVO, HDMI/HDCP,
Powerplay 7.0
AMD 740 chipsetRX7402008Athlon 64,
Phenom,
Sempron
551000

(HT 2.0)

NoNoSB600,
SB700,
SB750
Single PCIe 1.1 x16
AMD 740G chipsetRS740Radeon 2100DirectX 9.0, AVIVO, HDMI/HDCP,
OR single PCIe 1.1 x16
AMD 760G chipsetRS780L20092600

(HT 3.0)

Radeon 3000HybridSB710DirectX 10, AVIVO HD, HDMI/HDCP,
OR single PCIe 2.0 x16
AMD 770 chipsetRX780200865NoNoSB600,
SB700,
SB710,
SB750
Single PCIe 2.0 x16
AMD 780V chipsetRS780C55Radeon 3100NoSB700,
SB710,
SB750
DirectX 10, AVIVO HD, HDMI/HDCP,
DisplayPort/DPCP,
OR single PCIe 2.0 x16
AMD 780G chipsetRS780IRadeon HD 3200HybridDirectX 10, UVD+, HDMI/HDCP, DisplayPort/DPCP, Side-port memory,
OR single PCIe 2.0 x16
AMD M780V chipsetRS780MCMobile Turion,
Mobile Athlon,
Athlon Neo
Radeon 3100PowerXpress
AXIOM/MXM
module(s)
SB600,
SB700,
SB710
DirectX 10, UVD+,
HDMI/HDCP, DisplayPort, DVI, VGA,
OR single PCIe 2.0 x16

Puma Platform, PowerXpress

AMD M780G chipsetRS780MRadeon HD 3200
AMD 785G chipsetRS8802009Athlon 64,
Phenom,
Sempron
Radeon HD 4200Hybrid,
x16 + x4
SB710,
SB750,
SB810,
SB850
DirectX 10.1, UVD2,
Side-port memory,
HDMI/HDCP, DisplayPort/DPCP,
OR two PCIe 2.0 x16
TDP: 11 W (500 MHz), 3 W in PowerPlay
785ERS785E?2200

(HT 3.0)

Radeon HD 4200HybridSB810, SB850, SB820M
AMD 790GX chipsetRS780D2008Athlon 64,
Phenom,
Sempron
2600

(HT 3.0)

Radeon HD 3300Hybrid,
x8 + x8[4]
SB750DirectX 10, UVD+,
Side-port memory,
HDMI/HDCP, DisplayPort/DPCP,
OR two PCIe 2.0 x16
AMD 790X chipsetRD78065Nox8 + x8SB600,
SB700,
SB750,
SB850
Two PCIe 2.0 x16
AMD 790FX chipsetRD790Nov 2007NoCrossFire X
(dual x16
or quad x8)
SB600,
SB750,
SB850
Up to four PCIe 2.0 x16
Support for AMD Quad FX platform (FASN8),
Dual socket enthusiast platform with NUMA,
optional single socket variant,
720-pin 1.1 V FC-BGA
ModelCodenameReleasedCPU supportFab (nm)HT (MHz)IGPCrossFireSouthbridgeFeatures / Notes

A-Link Express III is essentially PCIe 2.0 x4 lanes.

ModelCode
name
ReleasedCPU supportFab
(nm)
HT
(MHz)
AMD-V
(Hardware Virtualization)
IGPCrossFireSLI[5]TDP
(W)
SouthbridgeFeatures / Notes
AMD 870 chipsetRX8802010Phenom II,
Athlon 64,
Sempron
652600
(HT 3.0)
?NoHybrid, x16 + x4No?SB850Single PCIe 2.0 x16
AMD 880G chipsetRS880PQ4 2010Phenom II,
Athlon II,
Sempron
55?Radeon HD 4250HybridNoSB710,
SB750,
SB810,
SB850,
SB920,
SB950
DirectX 10.1, UVD2,
HDMI/HDCP, DisplayPort/DPCP,
OR single PCIe 2.0 x16
AM3+ socket support
AMD 880M chipsetRS880MQ2 2010Mobile Turion II,
Mobile Athlon II,
Mobile Sempron
?Radeon HD 4200PowerXpress
AXIOM/MXM
module(s)
NoSB820DirectX 10.1, UVD2,
HDMI/HDCP, DisplayPort, DVI, VGA,
sideport memory,
OR single PCI-E 2.0 x16

Mobile Chipset, Tigris platform

AMD 880M chipsetAthlon II Neo,
Turion II Neo
Radeon HD 4225NoDirectX 10.1, UVD2,
HDMI/HDCP, DisplayPort, DVI, VGA,
OR Single PCI-E 2.0 x16

Mobile Chipset, Nile platform

AMD 880M chipsetMobile Phenom II,
Mobile Turion II,
Mobile Athlon II,
Mobile Sempron
V-Series
Radeon HD 4250
Radeon HD 4270
NoDirectX 10.1, UVD2,
HDMI/HDCP, DisplayPort, DVI, VGA,
OR single PCI-E 2.0 x16

Mobile Chipset, Danube platform

AMD 890GX chipsetRS880DPhenom II,
Athlon II,
Sempron
?Radeon HD 4290Hybrid,
x8 + x8
No22SB710,
SB750,
SB810,
SB850
DirectX 10.1, UVD2,
HDMI/HDCP, DisplayPort/DPCP,
Side-port memory,
OR two PCIe 2.0 x16
AMD 890FX chipsetRD890Bulldozer,[6]
Phenom II,
Athlon II,
Sempron
65Yes[7]Nox16 + x16
or x8 quad
No18SB710,
SB750,
SB810,
SB850
Four PCIe 2.0 x16
AMD 970 chipsetRX980Q2 2011Bulldozer, Piledriver
Phenom II, Athlon II, Sempron, FX
652400
(HT 3.0)
Yes[8]Nox16 + x4No13.6SB710,
SB750,
SB810,
SB850,
SB920,
SB950
Single PCIe 2.0 x16, IOMMU

AM3+ socket support

AMD 990X chipsetRD9802600
(HT 3.0)
x8 + x8x8 + x814Two PCIe 2.0 x16, IOMMU

AM3+ socket support

AMD 990FX chipsetRD990x16 + x16
or x8 quad
x16 + x16
or x16 + x8 + x8
or x8 quad
19.6Four PCIe 2.0 x16, IOMMU

AM3+ socket support

ModelCode
name
ReleasedCPU supportFab
(nm)
HT
(MHz)
AMD-V
(Hardware Virtualization)
IGPCrossFireSLITDP
(W)
SouthbridgeFeatures / Notes

Southbridges

AMD-xxx

ModelCodenameReleasedFab (nm)USB
2.0 + 1.1
AudioParallel ATA1Features / Notes
AMD 640 chipsetAMD-64519972 × ATA/33
AMD 750 chipsetAMD-75619990 + 42 × ATA/66
AMD 760 chipsetAMD-76620012 × ATA/100
AMD 760MPX chipsetAMD-768AC'97
Geode GX1Geode CS5530AC'972 × ATA/33National Semiconductor release
Geode GXm
Geode GXLV
Geode CS5530A
Geode GXGeode CS55350 + 42 × ATA/66
Geode LXGeode CS55364 + 02 × ATA/100
AMD-8111
nForce Professional
ULi-1563
AMD-813120044 + 2AC'972 × ATA/133PCI-X
AMD-8132PCI-X 2.0
AMD-8151AMD-8151AGP 8X

1 Parallel ATA, also known as Enhanced IDE supports up to 2 devices per channel.

  • All models support eSATA implementations of available SATA channels.
ModelCodenameReleasedFab

(nm)

SATAUSB
2.0 + 1.1
Parallel ATA1RAIDNICPackageTDP

(W)

Features / Notes
AMD 480/570/580/690
CrossFire Chipset
SB60020061304 × 3 Gbit/s
AHCI 1.1 SATA Revision 2.0
10 + 01 × ATA/1330,1,10No548-pin
FC-BGA
4.0
AMD 700 chipset seriesSB700Q1 20086 × 3 Gbit/s
AHCI 1.1 SATA Revision 2.0
12 + 21 × ATA/133No4.5DASH 1.0
SB700SDASH 1.0
Server southbridge
SB710Q4 2008DASH 1.0
SB7500,1,5,10
AMD 800
chipset series
SB810Q1 2010656 × 3 Gbit/s
AHCI 1.2 SATA Revision 2.0
14 + 2No0,1,1010/100/1000605-pin
FC-BGA
6.0
SB8506 × 6 Gbit/s
AHCI 1.2 SATA Revision 3.0
0,1,5,10
SB820M0,13.4 - 5.3mobile/embedded
AMD 900
chipset series
SB920May 30, 20116 × 6 Gbit/s
AHCI 1.2 SATA Revision 3.0
No0,1,1010/100/10006.0
SB9500,1,5,10
ModelCodenameReleasedFab (nm)SATAUSB
2.0 + 1.1
Parallel ATA1RAIDNICPackageTDP (W)Features / Notes

1 Parallel ATA, also known as Enhanced IDE supports up to 2 devices per channel.

Fusion controller hubs (FCH)

For AMD APU models from 2011 until 2016. AMD marketed their chipsets as Fusion Controller Hubs (FCH), implementing it across their product range in 2017 alongside the release of the Zen architecture. Before then, only APUs used FCHs, while their other CPUs still used a northbridge and southbridge. The Fusion Controller Hubs are similar in function to Intel's Platform Controller Hub.

Fusion Controller Hub A88X
ModelCodenameUMISATAUSB
3.0+2.0+1.1
RAIDNIC33 MHz PCISD[S 1]VGA DACTDP

(W)

Features / notesPart number
Mobile
A55THudson-M2T[N 1]×2 Gen 11× 3 Gbit/s
AHCI 1.1
0 + 8 + 0NoNoNoSDIONo
A50MHudson-M1[N 1]×4 Gen 1[M 1]6× 6 Gbit/s
AHCI 1.2
0 + 14 + 2No5.9[9]~920 mW idle100-CG2198[9]
A60MHudson-M2[N 1]×4 Gen 1 +DP0,110/100/1000YesYes4.7
A68MHudson-M3L[N 1]2× 6 Gbit/s
AHCI 1.2
2 + 8 + 0No~750 mW idle218-0792006
A70MHudson-M3[N 1]6× 6 Gbit/s
AHCI 1.2
4 + 10 + 2YesFirst native
USB 3.0 controller[10]
100-CG2389[9]
A76MBolton-M3[N 1]218-0844012
Desktop
A45Hudson-D1[N 2]×4 Gen. 2[M 2]6× 3 Gbit/s
AHCI 1.1
0 + 14 + 2NoNoUp to 4 slotsNoNo218-0792008
A55Hudson-D2[N 2]×4 Gen 2 +DP0,1,1010/100/1000Up to 3 slotsYesYes7.6
A58Bolton-D2[N 2]×4 Gen 26× 3 Gbit/s
AHCI 1.3
218-0844023
A68HBolton-D2H[N 2]4× 6 Gbit/s
AHCI 1.3
2 + 10 + 2xHCI 1.0218-0844029-00
A75Hudson-D3[N 2]×4 Gen 2 +DP6× 6 Gbit/s
AHCI 1.2
4 + 10 + 210/100/10007.8[9]First native
USB 3.0 controller[10]
100-CG2386[9]
A78Bolton-D3[N 2]6× 6 Gbit/s
AHCI 1.3
7.8xHCI 1.0218-0844014
A85XHudson-D4[N 2]8× 6 Gbit/s
AHCI 1.2
0,1,5,1010/100/1000USB 3.0 (xHCI 0.96)218-0755117
A88XBolton-D4[N 2]×4 Gen 28× 6 Gbit/s
AHCI 1.3
USB 3.0 (xHCI 1.0)218-0844016
Embedded
A55EHudson-E1[N 3]×4 Gen 26× 6 Gbit/s
AHCI 1.2
0 + 14 + 20,1,5,1010/100/1000Up to 4 slotsNoNo5.9[9]100-CG2293[9]
A77E[11]Bolton-E4[N 3]1-, 2-, or 4-lane
2 or 5 GB/s
6× 6 Gbit/s
AHCI 1.3
4 + 10 + 2Up to 3 slotsYesYes4-lane PCIe 2.0218-0844020-00
ModelCodenameUMISATAUSB
3.0+2.0+1.1
RAIDNIC33 MHz PCISD[S 1]VGA DACTDP (W)Features / notesPart number

Secure Digital:

Codename:

UMI:

AM4 chipsets

AMD B350 Chipset
AMD B450 Chipset

There are currently 3 generations of AM4-based chipsets on the market. Models beginning with the numeral "3" are representatives of the first generation, those with "4" the second generation, etc.

In addition to their traditional chipsets, AMD offers chipsets with "processor-direct access", exclusively through OEM partners.[12] Enthusiast publication igor'sLAB obtained leaked documents about an AMD "Knoll Activator" that enables "activating... processor I/O and processor features in the absence of an alternative AMD chipset." It is concluded that motherboards with the Knoll Activator would be built with I/O from the processor and low-cost I/O chips.[13]

Individual chipset models differ in the number of PCI Express lanes, USB ports, and SATA connectors, as well as supported technologies; the table below shows these differences.[14][15]

ModelRelease datePCIe support[a]Multi-GPUUSB support[b]Storage featuresProcessor
overclocking
TDPCPU supportArchitecture
CrossFireSLISATA portsRAIDAMD StoreMIExcavatorZenZen+Zen 2Zen 3
A300Feb 2017NoneUntestedNoneNoneYes[16]No[17]No~120 μW[c]NoYes[18][19]Knoll Express[20]
X300YesYes[21]
Pro 500Jan 2020[22]Un­knownNoPartial[d]
A320Feb 2017[23][24]PCIe 2.0 ×4NoNo1, 2, 640,
1,
10
NoLimited[e]~5.8 W[25]YesYesYesVaries[f]Promontory
B350PCIe 2.0 ×6Yes2, 2, 6Yes
X370PCIe 2.0 ×8Yes2, 6, 68
B450Mar 2018[26]PCIe 2.0 ×6No2, 2, 64YesYes,
with PBO
Varies[g]YesVaries[g][27]
X470PCIe 2.0 ×8Yes2, 6, 68
A520Aug 2020[28]PCIe 3.0 ×6No1, 2, 64NoVaries
B550[h]Jun 2020[29][30]PCIe 3.0 ×10YesVaries2, 2, 66Yes,
with PBO
~7W
X570Jul 2019[31][32]PCIe 4.0 ×16Yes8, 0, 412~15 W[33][34][i]NoYesYesBixby

The 300 series, 400 series, and the B550 chipsets are designed in collaboration with ASMedia and the family is codenamed Promontory.[35] The X570 is designed by AMD with IP licensed from ASMedia and other companies and is codenamed Bixby.[36] Network interface controller, Wi-Fi, and Bluetooth are provided by external chips connected to the chipset through PCIe or USB. All 300 series chipsets are made using 55 nm lithography.[37] The X570 chipset is a repurposed Matisse/Vermeer IO die made using a 14 nm process.[38]

TR4 chipsets

Supports both 1st and 2nd generation AMD Ryzen Threadripper processors.[39]

ModelCPU
PCIe Link
PCIe supportMulti-GPU supportSATA + SATA ExpressUSB
3.1 Gen2 + 3.1 Gen1 + 2.0
RAIDOverclockingTDPChipset lithography
CrossFireSLI
X399[40][39]×4PCIe 2.0 ×8YesYes4 + 22 + 14 + 60,1,10Yes5 W[41]Un­known

sTRX4 chipsets

Supports 3rd generation AMD Ryzen Threadripper (3960X to 3990X) processors.[42]

ModelCPU
PCIe Link
PCIe supportMulti-GPU supportSATAUSB
3.1 Gen2 + 2.0
RAIDOverclockingTDPChipset lithographyNotes
CrossFireSLI
TRX40[42]×8PCIe 4.0 ×8YesYes4 (+ up to 2 × 4 extra)8 + 40,1,10Yes15 W[41]14 nmHW-wise identical to X570[citation needed]

Although the X399, TRX40 and WRX80 motherboards' CPU sockets use the same number of pins, the sockets are incompatible with each other due to ID pins and no-connects of some pins. Twelve TRX40 motherboards were released at launch in November 2019. The TRX40 chipset does not support the HD Audio interface on its own, so motherboard vendors must include a USB audio device or a PCIe audio device on TRX40 motherboards to integrate audio codecs.[41]

sWRX8 chipsets

Supports 3rd (3900WX) and 4th generation (5900WX) AMD Ryzen Threadripper Pro processors.[43]

ModelCPU
PCIe Link
PCIe supportMulti-GPU supportSATAUSB
3.1 Gen2 + 2.0
RAIDOverclockingTDPChipset lithographyNotes
CrossFireSLI
WRX80×8PCIe 4.0 ×16YesYes48 + 40,1,10Yes15 W14 nmHW-wise identical to EPYC/Threadripper IO die[citation needed]

Although the X399, TRX40 and WRX80 motherboards' CPU sockets use the same number of pins, the sockets are incompatible with each other due to ID pins and no-connects of some pins.[41] Three WRX80 motherboards were released at launch in March 2021. The WRX80 chipset does not support the HD Audio interface on its own, so motherboard vendors must include a USB audio device or a PCIe audio device on WRX80 motherboards to integrate audio codecs.

AM5 chipsets

AMD uses a single Promontory 21 chipset for all configurations that include a chipset. A single Promontory 21 chip provides four SATA III ports and twelve PCIe 4.0 lanes. Four lanes are reserved for the chipset uplink to the CPU while another four are used to connect to another Promontory 21 chip in a daisy-chained topology for X670, X670E and X870E chipsets.[44]

Branding
A620B650B650EX670X670EX870X870E
Platform features
PCIe 5.0
support[a]
x16 slotNoNoYesNoYesYesYes
M.2 slot + 4× GPPNoM.2 OptionalYesYesYesYesYes
x16 slot configurations1×161×16 or 2×8
Multi-GPUCrossFireNoYesYesYesYesYesYes
SLINoNoNoNoNoNoNo
USB4 support (40 Gb/s)[b]OptionalOptionalOptionalOptionalOptionalYesYes
Wi-Fi version[b][c]67
Processor overclockingNoYesYesYesYesYesYes
Chipset specifications
PCIe lanes[d]Gen 4None×8×12×8×12
Gen 3Up to ×8Up to ×4Up to ×8Up to ×4Up to ×8
USB
support
USB 2.0612612
USB 3.2 Gen 1
(5 Gb/s)
2None
USB 3.2 Gen 2
(10 Gb/s)
24848
USB 3.2 Gen 2x2
(20 Gb/s)
None1[e]2[f]1[e]2[f]
Storage
features
SATA III portsUp to 4Up to 8Up to 4Up to 8
RAID0, 1, 10
Chipset TDP~4.5 W~7 W~14 W[g]~7 W~14 W[g]
ArchitecturePromontory 21
×1
Promontory 21
×2
Promontory 21
×1
Promontory 21
×2
Chipset
links
To CPUPCIe 4.0 ×4
InterchipsetPCIe 4.0 ×4PCIe 4.0 ×4
CPU
support
Zen 4Yes
Zen 5Yes
Release dateMar 31, 2023Oct 10, 2022Sep 27, 20222024
Reference(s)[45][46][47][45][48][49][45][50][51]

sTR5 chipsets

The sTR5 socket has two chipset options available, TRX50 and WRX90:

  • TRX50 is an HEDT platform which is intended to be paired with Threadripper (7000X) series processors, but is also compatible with Threadripper Pro models. When a Threadripper Pro CPU is paired with a TRX50 motherboard, extra features like enterprise management and security won't be available to the user, and PCIe lanes and memory channels will still be limited to that of non-Pro Threadripper.
  • WRX90 is a workstation platform for Threadripper Pro (7000WX) series processors. It is not compatible with the Threadripper non-Pro 7000X series.[52]

HD audio support is provided by the CPU, rather than by the chipset.[53]

ModelCPU
PCIe Link
PCIe supportMulti-GPU supportSATAUSB
3.1 Gen2x2 + 3.1 Gen2 + 2.0
RAIDOverclockingTDPChipset lithographyNotes
CrossFireSLI
TRX50[54]PCIe 4.0 ×841 + 4 + 4Yes
WRX90[53][54]×4

See also

References