Intel Xeon E3-1205 v6 vs AMD EPYC 7251

Comparative analysis of Intel Xeon E3-1205 v6 and AMD EPYC 7251 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

Intel Xeon E3-1205 v6

AMD EPYC 7251

Differences

Reasons to consider the Intel Xeon E3-1205 v6

Around 3% higher clock speed: 3.00 GHz vs 2.9 GHz
Around 85% lower typical power consumption: 65 Watt vs 120 Watt
Around 12% better performance in PassMark - Single thread mark: 1875 vs 1671

Specifications (specs)
Maximum frequency	3.00 GHz vs 2.9 GHz
Thermal Design Power (TDP)	65 Watt vs 120 Watt
Benchmarks
PassMark - Single thread mark	1875 vs 1671

Reasons to consider the AMD EPYC 7251

CPU is newer: launch date 2 month(s) later
Processor is unlocked, an unlocked multiplier allows for easier overclocking
4 more cores, run more applications at once: 8 vs 4
12 more threads: 16 vs 4
3x more L1 cache, more data can be stored in the L1 cache for quick access later
4x more L2 cache, more data can be stored in the L2 cache for quick access later
4x more L3 cache, more data can be stored in the L3 cache for quick access later
2.6x better performance in PassMark - CPU mark: 14935 vs 5682

Specifications (specs)
Launch date	June 2017 vs 28 Mar 2017
Unlocked	Unlocked vs Locked
Number of cores	8 vs 4
Number of threads	16 vs 4
L1 cache	96 KB (per core) vs 256 KB
L2 cache	512 KB (per core) vs 1 MB
L3 cache	32 MB vs 8 MB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	14935 vs 5682

Compare benchmarks

CPU 1: Intel Xeon E3-1205 v6
CPU 2: AMD EPYC 7251

PassMark - Single thread mark

CPU 1

CPU 2

1875

1671

PassMark - CPU mark

CPU 1

CPU 2

5682

14935

Name	Intel Xeon E3-1205 v6	AMD EPYC 7251
PassMark - Single thread mark	1875	1671
PassMark - CPU mark	5682	14935

Compare specifications (specs)

	Intel Xeon E3-1205 v6	AMD EPYC 7251
Essentials
Architecture codename	Kaby Lake	Zen
Launch date	28 Mar 2017	June 2017
Launch price (MSRP)	$193
Place in performance rating	1238	1180
Processor Number	E3-1205V6
Series	Intel Xeon Processor E3 v6 Family	AMD EPYC 7000 Series
Status	Launched
Vertical segment	Server	Server
Family		AMD EPYC
Performance
64 bit support
Base frequency	3.00 GHz	2.1 GHz
Bus Speed	8 GT/s
L1 cache	256 KB	96 KB (per core)
L2 cache	1 MB	512 KB (per core)
L3 cache	8 MB	32 MB
Manufacturing process technology	14 nm	14 nm
Maximum frequency	3.00 GHz	2.9 GHz
Number of cores	4	8
Number of threads	4	16
VID voltage range	0.55V-1.52V
Die size		192 mm
Transistor count		4800 million
Unlocked
Memory
Max memory channels	2	8
Maximum memory bandwidth	37.5 GB/s	307 GB/s
Maximum memory size	64 GB
Supported memory types	DDR4-2400, DDR3L-1866	DDR4
Supported memory frequency		2400 MHz
Graphics
Device ID	0x191D
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.00 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	1.7 GB
Processor graphics	Intel HD Graphics P630
Graphics interfaces
DisplayPort
DVI
eDP
HDMI
Number of displays supported	3
Graphics image quality
4K resolution support
Max resolution over DisplayPort	4096x2304@60Hz
Max resolution over eDP	4096x2304@60Hz
Max resolution over HDMI 1.4	4096x2160@24Hz
Graphics API support
DirectX	12
OpenGL	4.4
Compatibility
Max number of CPUs in a configuration	1	2
Package Size	37.5mm x 37.5mm
Sockets supported	FCLGA1151	TR4
Thermal Design Power (TDP)	65 Watt	120 Watt
Socket Count		1P/2P
Peripherals
Max number of PCIe lanes	16
PCI Express revision	3.0	x128
PCIe configurations	1x16, 2x8, 1x8+2x4
Scalability	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Memory Protection Extensions (Intel® MPX)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel SSE4.1, Intel SSE4.2, Intel AVX2
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
AMD Virtualization (AMD-V™)