EPYC 7543 vs C-70

Primary details

Comparing C-70 and EPYC 7543 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	58
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	4.46
Market segment	Laptop	Server
Series	AMD C-Series	AMD EPYC
Architecture codename	Ontario (2011−2012)	Milan (2021)
Release date	1 September 2012 (11 years ago)	12 January 2021 (3 years ago)
Launch price (MSRP)	no data	$3,761
Current price	$107	$6282 (1.7x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

C-70 and EPYC 7543 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	2 (Dual-core)	32 (Dotriaconta-Core)
Threads	2	64
Base clock speed	1 GHz	2.8 GHz
Boost clock speed	1.33 GHz	3.7 GHz
L1 cache	64K (per core)	2 MB
L2 cache	512K (per core)	16 MB
L3 cache	0 KB	256 MB (shared)
Chip lithography	40 nm	7 nm+
Die size	75 mm2	8x 81 mm2
Number of transistors	no data	33,200 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	Yes

Compatibility

Information on C-70 and EPYC 7543 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
Socket	FT1 BGA 413-Ball	SP3
Power consumption (TDP)	9 Watt	225 Watt

Technologies and extensions

Technological solutions and additional instructions supported by C-70 and EPYC 7543. You'll probably need this information if you require some particular technology.

Instruction set extensions	MMX(+), SSE(1,2,3,3S,4A), AMD-V, Radeon HD 6290 (276-400 MHz)	no data
AES-NI	no data	+
AVX	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by C-70 and EPYC 7543 are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by C-70 and EPYC 7543. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3 Single-channel	DDR4-3200
Maximum memory size	no data	4 TiB
Maximum memory bandwidth	no data	204.795 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

AMD Radeon HD 6290

N/A

Peripherals

Specifications and connection of peripherals supported by C-70 and EPYC 7543.

PCIe version	no data	4.0
PCI Express lanes	no data	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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Pros & cons summary

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Recency	1 September 2012	12 January 2021
Physical cores	2	32
Threads	2	64
Chip lithography	40 nm	7 nm
Power consumption (TDP)	9 Watt	225 Watt

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