EPYC 7662 vs Ryzen Threadripper PRO 3955WX

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	325	92
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	7.10	no data
Market segment	Server	Server
Series	AMD Ryzen Threadripper	AMD EPYC
Power efficiency	3.44	7.75
Designer	AMD	AMD
Manufacturer	TSMC	no data
Architecture codename	Castle Peak (2020)	Zen 2 (2019−2020)
Release date	14 July 2020 (5 years ago)	19 February 2020 (6 years ago)
Launch price (MSRP)	$1,149	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Performance to price scatter graph

Currently popular graphics cards are shown for comparison.

Detailed specifications

Basic parameters of Ryzen Threadripper PRO 3955WX and EPYC 7662: 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	16 (Hexadeca-Core)	64 (Tetrahexaconta-Core)
Threads	32	128
Base clock speed	3.9 GHz	2 GHz
Boost clock speed	4.3 GHz	3.3 GHz
Multiplier	39	20
L1 cache	64 KB (per core)	4 MB
L2 cache	512 KB (per core)	32 MB
L3 cache	64 MB	256 MB
Chip lithography	7 nm, 12 nm	7 nm, 14 nm
Die size	2x 74 mm2	no data
Maximum case temperature (TCase)	95 °C	no data
Number of transistors	7,600 million	no data
64 bit support	+	+
Windows 11 compatibility	+	+

Compatibility

Information on Ryzen Threadripper PRO 3955WX and EPYC 7662 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	no data
Socket	WRX8	Socket SP3
Power consumption (TDP)	280 Watt	225 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen Threadripper PRO 3955WX and EPYC 7662. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
Precision Boost 2	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen Threadripper PRO 3955WX and EPYC 7662 are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper PRO 3955WX and EPYC 7662. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	DDR4-3200
Maximum memory size	2 TiB	4 TiB
Max memory channels	no data	8
Maximum memory bandwidth	204.8 GB/s	204.763 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

no data

Peripherals

Specifications and connection of peripherals supported by Ryzen Threadripper PRO 3955WX and EPYC 7662.

PCIe version	4.0	no data
PCI Express lanes	128	no data

Synthetic benchmarks

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.

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Pros & cons summary

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Performance score	23.04	41.78
Recency	14 July 2020	19 February 2020
Physical cores	16	64
Threads	32	128
Power consumption (TDP)	280 Watt	225 Watt