EPYC 9645 vs Ryzen 7 3700U

Primary details

Comparing Ryzen 7 3700U and EPYC 9645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1311	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	AMD Ryzen 7	no data
Power efficiency	28.39	no data
Architecture codename	Picasso-U (Zen+) (2019−2020)	Turin (2024)
Release date	6 January 2019 (5 years ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	no data	$11,048

Detailed specifications

Ryzen 7 3700U and EPYC 9645 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	4 (Quad-Core)	96
Threads	8	192
Base clock speed	2.3 GHz	2.3 GHz
Boost clock speed	4 GHz	3.7 GHz
Bus type	PCIe 3.0	no data
Multiplier	23	no data
L1 cache	128K (per core)	80 KB (per core)
L2 cache	512K (per core)	1 MB (per core)
L3 cache	4 MB (shared)	256 MB (shared)
Chip lithography	12 nm	3 nm
Die size	209.78 mm2	no data
Maximum core temperature	105 °C	no data
Number of transistors	4940 Million	no data
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Ryzen 7 3700U and EPYC 9645 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 (Uniprocessor)	2
Socket	FP5	SP5
Power consumption (TDP)	15 Watt	320 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 3700U and EPYC 9645. You'll probably need this information if you require some particular technology.

Instruction set extensions	MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME	no data
AES-NI	+	+
FMA	+	-
AVX	+	+
Precision Boost 2	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 3700U and EPYC 9645 are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 3700U and EPYC 9645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR5
Maximum memory size	64 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	38.397 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

AMD Radeon RX Vega 10

N/A

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 3700U and EPYC 9645.

PCIe version	3.0	5.0
PCI Express lanes	12	128

Pros & cons summary

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Recency	6 January 2019	10 October 2024
Physical cores	4	96
Threads	8	192
Chip lithography	12 nm	3 nm
Power consumption (TDP)	15 Watt	320 Watt

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Should you still have questions on choice between Ryzen 7 3700U and EPYC 9645, ask them in Comments section, and we shall answer.

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