AMD Opteron X3421 vs Intel Xeon 6766P-B Full Specs

Summary

2 Cores 4 Threads 2.1GHz	64 Cores 128 Threads 2.3GHz
TDP 15W	TDP 305W
Bandwidth 38.4GB/s DDR4	Bandwidth 409.6GB/s DDR5
iGPU Radeon R7 8CU 800MHz GCN 3	iGPU 0
Peak·FP32·FP16 819.2 GFLOPSFP16	Peak·FP32·FP16 -
Socket FP4	Socket BGA 5026

Highlights

Geekbench 6 Single

Geekbench 6 Single Geekbench 6 Multi Max Bandwidth iGPU Peak iGPU FP32 iGPU FP16 TDP

Opteron X3421590

x1

Xeon 6766P-B-

-

Show Top Score

Core Config

2 Cores	64 Cores
4 Threads	128 Threads

Clocks

Base Clock 2.1GHz	Base Clock 2.3GHz
Boost Clock 3.4GHz	Boost Clock 3.5GHz
Overclocking Locked	Overclocking Locked

Cache

L1i 96KB	L1i 64KB
L1d 32KB	L1d 48KB
L2 1MB	L2 2MB
L3 -	L3 256MB

Memory

Type DDR4	Type DDR5
Max Memory 64GB	Max Memory 2.26TB
ECC Yes	ECC Yes
Channels 2	Channels 8
Bus Width 128-bit	Bus Width 512-bit
Speed 2400MT/s	Speed 6400MT/s
Bandwidth 38.4GB/s	Bandwidth 409.6GB/s
Bandwidth Calculator Channels Transfer Rate2400MT/s Calculated Bandwidth 38.4GB/s	Bandwidth Calculator Channels Transfer Rate6400MT/s Calculated Bandwidth 409.6GB/s

Power & Thermals

TDP 15W	TDP 305W
cTDP-down 12W	cTDP-down -
T-Case -	T-Case 85°C Max

Chipset Bus

Bus Type PCIe	Bus Type -
Bus Config 4 lanes	Bus Config -
Bus Speed 8GT/s	Bus Speed -
Bus Bandwidth 4GB/s	Bus Bandwidth -

Expansion

PCIe PCIe 3.0 x8 7.9GB/sBandwidth	PCIe PCIe 5.0 x32 126GB/sBandwidth
-	PCIe Secondary PCIe 4.0 x16 31.5GB/sBandwidth

iGPU

iGPU Radeon R7 8CU 800MHz GCN 3	iGPU 0
Shaders 512	Shaders -
Boost Clock 800MHz	Boost Clock -
Peak·FP32·FP16 819.2 GFLOPSFP16	Peak·FP32·FP16 -

Chip

Manufacturer AMD	Manufacturer Intel
ISA x86-64	ISA x86-64
Architecture Excavator	Architecture Granite Rapids
Family Opteron	Family Xeon 6
Branding	Branding
Codename Toronto - - - -	Codename Granite Rapids-D 85Die Granite Rapids-XCCVariant Redwood CoveP-Core 64M-Core
Market Segment Server	Market Segment Server
Release Date Jun 1, 2017	Release Date Dec 1, 2025

Fabrication

Foundry GlobalFoundries	Foundry Intel
Other Foundries -	Other Foundries IntelIO
Fabrication Node 28nm -	Fabrication Node Intel 3 Intel 7IO
Die Size 250mm² -	Die Size 1196mm² 482mm²IO
Transistor Count 3.1 Billion	Transistor Count -
Transistor Density 12 MTr/mm²	Transistor Density -

Images

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Competitors

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