Template:AM5 chipsets

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Branding
A620 / A620A B650 B650E X670 X670E B840 B850 X870 X870E
Processor features support
 CPU
support 		Zen 4 Yes
Zen 5 Yes[a] Yes
CPU overclocking No Yes No Yes
PCIe 5.0
support[b] 		x16 slot No No Yes No Yes No No Yes
M.2 slot[c] + 4× GPP[d] No M.2: Optional Yes No M.2: Yes Yes
GPP: No GPP: No
USB
ports 		USB 3.2 Gen 2x1 4
Chipset features
 ECC memory [e] ?
PCIe lanes[f] Gen 4 None ×8 ×12 None ×8 ×12
Gen 3 Up to ×8 Up to ×4 Up to ×8 Up to ×10 Up to x4 Up to ×8
USB
ports 		USB 2.0 6 12 6 12
USB 3.2 Gen 1x1
(5 Gb/s) 		2 None 2 None
USB 3.2 Gen 2x1
(10 Gb/s) 		2 with max x2 ports:
4
without x2 ports:
6[g] 		with max x2 ports:
8
without x2 ports:
12[h] 		2 with max x2 ports:
4
without x2 ports:
6[g] 		with max x2 ports:
8
without x2 ports:
12[h]
USB 3.2 Gen 2x2
(20 Gb/s) 		None Up to 1[g] Up to 2[h] None Up to 1[g] Up to 2[h]
Storage
features 		SATA III ports Up to 4 Up to 8 Up to 4 Up to 8
RAID 0, 1, 10
Platform features
 USB4 Gen 3×2 (40 Gb/s)[i] Optional Yes
Wi-Fi [i] Optional[j]
PCIe x16 slot configurations 1×16 1×16 or 2×8 1×16 1×16 or 2×8
Multi-GPU CrossFire No Yes Yes Yes Yes No ? Yes Yes
SLI No
Chipset
links 		To CPU PCIe 4.0 ×4
Interchipset No PCIe 4.0 ×4 No PCIe 4.0 ×4
Chipset TDP ~4.5 W ~7 W ~14 W[k] ? ~7 W ~14 W[k]
Architecture Promontory 22 / 21 x1 (A620)[1]
Promontory 19 x1 (A620A)[2] 		Promontory 21
×1 		Promontory 21
×2 		? Promontory 21
×1 		Promontory 21
×2
Release date Mar 31, 2023 Oct 10, 2022 Sep 27, 2022 Jan 6, 2025 Sep 2024
References [3][4][5][6] [3][4][7][8][9] [3][4] [3][4][10][11][12]
  1. ^ More likely need a BIOS update if the motherboard was manufactured in a earlier date.
  2. ^ Support for Gen5 speeds on lanes directly from CPU to expansion and M.2 slots, and general-purpose lanes. (Also depends on CPU PCIe support. Some CPUs have as low as 10 lanes of PCIe 4.0 available.)
  3. ^ The "first" M.2 slot.
  4. ^ Some motherboards connect GPP lanes to a second M.2 slot.
  5. ^ No guarantees, it depends on the motherboard and CPU
  6. ^ PCIe lanes provided by the chipset. The CPU provides other PCIe 5.0 and/or 4.0 lanes.
  7. ^ a b c d The motherboard maker may configure the total of 6 USB 3.2 lanes provided by the chipset into "4× USB3.2 Gen 2x1 and 1× USB3.2 Gen 2x2" or "6× USB3.2 Gen 2x1 and 0× USB3.2 Gen 2x2" ports.
  8. ^ a b c d The motherboard maker may configure the total of 12 USB 3.2 lanes provided by the chipset into one of the following:
    "8× USB3.2 Gen 2x1 and 2× USB3.2 Gen 2x2",
    "10× USB3.2 Gen 2x1 and 1× USB3.2 Gen 2x2", or
    "12× USB3.2 Gen 2x1 and 0× USB3.2 Gen 2x2"
  9. ^ a b Provided by a third-party controller.
  10. ^ AMD did not mandate which Wi-Fi version should be paired with which chipset (unlike USB4 is mandatory with some chipsets). Motherboard makers may omit Wi-Fi on some models.
  11. ^ a b Two Promontory 21 chipsets are present, each having a TDP of ~7 W, giving a total TDP of ~14 W.
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