EPYC 7451 vs Xeon W-2195

Primary details

Comparing Xeon W-2195 and EPYC 7451 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	314	358
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	15.73	2.08
Market segment	Server	Server
Series	Intel Xeon W	AMD EPYC
Architecture codename	Skylake (server) (2017−2019)	Naples (2017−2018)
Release date	29 August 2017 (6 years ago)	20 June 2017 (7 years ago)
Launch price (MSRP)	$2,553	$2,400
Current price	$899 (0.4x MSRP)	$2768 (1.2x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon W-2195 has 656% better value for money than EPYC 7451.

Detailed specifications

Xeon W-2195 and EPYC 7451 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	18 (Octadeca-Core)	24 (Tetracosa-Core)
Threads	36	48
Base clock speed	2.3 GHz	2.3 GHz
Boost clock speed	4.3 GHz	2.3 GHz
Bus support	4 × 8 GT/s	no data
L1 cache	1.125 MB	2.25 MB
L2 cache	18 MB	12 MB
L3 cache	24.75 MB (shared)	64 MB (shared)
Chip lithography	14 nm	14 nm
Die size	no data	213 mm2
Maximum core temperature	66 °C	no data
Number of transistors	no data	19200 Million
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	No	Yes

Compatibility

Information on Xeon W-2195 and EPYC 7451 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	2 (Multiprocessor)
Socket	Socket R4	TR4
Power consumption (TDP)	140 Watt	180 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W-2195 and EPYC 7451. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512	no data
AES-NI	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	no data
Idle States	+	no data
Thermal Monitoring	+	no data
Flex Memory Access	-	no data
Demand Based Switching	+	no data
PAE	46 Bit	no data
Turbo Boost Max 3.0	-	no data
Status	Discontinued	no data

Security technologies

Xeon W-2195 and EPYC 7451 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
Secure Key	+	no data
MPX	+	no data
Identity Protection	+	no data
SGX	-	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon W-2195 and EPYC 7451 are enumerated here.

AMD-V	no data	+
VT-d	+	no data
VT-x	+	no data
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon W-2195 and EPYC 7451. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666	DDR4 Eight-channel
Maximum memory size	512 GB	2 TiB
Max memory channels	4	8
Maximum memory bandwidth	85.3 GB/s	170.671 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon W-2195 and EPYC 7451.

PCIe version	3.0	3.0
PCI Express lanes	48	128

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Xeon W-2195 outperforms EPYC 7451 by 8% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	18.04	16.72
Recency	29 August 2017	20 June 2017
Physical cores	18	24
Threads	36	48
Cost	$2553	$2400
Power consumption (TDP)	140 Watt	180 Watt

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Should you still have questions on choice between Xeon W-2195 and EPYC 7451, ask them in Comments section, and we shall answer.

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