AMD EPYC 7451 vs Intel Xeon 5120

Comparative analysis of AMD EPYC 7451 and Intel Xeon 5120 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Virtualization, Security & Reliability, Advanced Technologies. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

AMD EPYC 7451

Intel Xeon 5120

Differences

Reasons to consider the AMD EPYC 7451

CPU is newer: launch date 11 year(s) 0 month(s) later
Processor is unlocked, an unlocked multiplier allows for easier overclocking
22 more cores, run more applications at once: 24 vs 2
Around 72% higher clock speed: 3.2 GHz vs 1.86 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 65 nm
3x more L2 cache, more data can be stored in the L2 cache for quick access later
2.5x better performance in PassMark - Single thread mark: 1948 vs 770
34.8x better performance in PassMark - CPU mark: 51778 vs 1486

Specifications (specs)
Launch date	June 2017 vs June 2006
Unlocked	Unlocked vs Locked
Number of cores	24 vs 2
Maximum frequency	3.2 GHz vs 1.86 GHz
Manufacturing process technology	14 nm vs 65 nm
L2 cache	512 KB (per core) vs 4096 KB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - Single thread mark	1948 vs 770
PassMark - CPU mark	51778 vs 1486

Reasons to consider the Intel Xeon 5120

2.8x lower typical power consumption: 65 Watt vs 180 Watt

Thermal Design Power (TDP)	65 Watt vs 180 Watt

Compare benchmarks

CPU 1: AMD EPYC 7451
CPU 2: Intel Xeon 5120

PassMark - Single thread mark

CPU 1

CPU 2

1948

770

PassMark - CPU mark

CPU 1

CPU 2

51778

1486

Name	AMD EPYC 7451	Intel Xeon 5120
PassMark - Single thread mark	1948	770
PassMark - CPU mark	51778	1486
Geekbench 4 - Single Core		3655
Geekbench 4 - Multi-Core		25615

Compare specifications (specs)

	AMD EPYC 7451	Intel Xeon 5120
Essentials
Architecture codename	Zen	Woodcrest
Family	AMD EPYC
Launch date	June 2017	June 2006
Place in performance rating	514	451
Series	AMD EPYC 7000 Series	Legacy Intel® Xeon® Processors
Vertical segment	Server	Server
Launch price (MSRP)		$45
Price now		$1,628.48
Processor Number		5120
Status		Discontinued
Value for money (0-100)		0.23
Performance
64 bit support
Base frequency	2.3 GHz	1.86 GHz
Die size	192 mm	143 mm2
L1 cache	96 KB (per core)
L2 cache	512 KB (per core)	4096 KB
L3 cache	64 MB
Manufacturing process technology	14 nm	65 nm
Maximum frequency	3.2 GHz	1.86 GHz
Number of cores	24	2
Number of threads	48
Transistor count	4800 million	291 million
Unlocked
Bus Speed		1066 MHz FSB
Maximum core temperature		65°C
VID voltage range		B2=1.0V-1.5V, G0=.85V-1.5V
Memory
Max memory channels	8
Maximum memory bandwidth	341 GB/s
Supported memory frequency	2666 MHz
Supported memory types	DDR4	DDR2
Compatibility
Max number of CPUs in a configuration	2	1
Socket Count	1P/2P
Sockets supported	TR4	LGA771
Thermal Design Power (TDP)	180 Watt	65 Watt
Low Halogen Options Available
Package Size		37.5mm x 37.5mm
Scenario Design Power (SDP)		0 W
Peripherals
PCI Express revision	x128
Virtualization
AMD Virtualization (AMD-V™)
Intel® Virtualization Technology (VT-x)
Intel® VT-x with Extended Page Tables (EPT)
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Intel 64
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring