EPYC 7H12 vs Celeron M 340

Place in the ranking	3315	48
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Celeron M	AMD EPYC
Power efficiency	0.63	14.82
Architecture codename	Banias (2003)	Zen 2 (2017−2020)
Release date	no data (2024 years ago)	18 September 2019 (5 years ago)

Detailed specifications

Celeron M 340 and EPYC 7H12 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	1 (Single-Core)	64 (Tetrahexaconta-Core)
Threads	1	128
Base clock speed	1.5 GHz	2.6 GHz
Boost clock speed	1.5 GHz	3.3 GHz
Bus rate	400 MHz	no data
Multiplier	no data	26
L1 cache	no data	96K (per core)
L2 cache	no data	512K (per core)
L3 cache	512 KB L2	256 MB (shared)
Chip lithography	130 nm	7 nm, 14 nm
Die size	no data	192 mm²
Maximum core temperature	100 °C	no data
Number of transistors	no data	4,800 million
64 bit support	-	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+
VID voltage range	1.356V	no data

Compatibility

Information on Celeron M 340 and EPYC 7H12 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	no data	2 (Multiprocessor)
Socket	PPGA478	TR4
Power consumption (TDP)	24.5 Watt	280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron M 340 and EPYC 7H12. You'll probably need this information if you require some particular technology.

AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	-	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	-	no data
Demand Based Switching	-	no data
PAE	32 Bit	no data
FSB parity	-	no data
Precision Boost 2	no data	+

Security technologies

Celeron M 340 and EPYC 7H12 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron M 340 and EPYC 7H12 are enumerated here.

AMD-V	-	+
VT-x	-	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron M 340 and EPYC 7H12. Depending on the motherboard, higher memory frequencies may be supported.

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

Gaming performance

Pros & cons summary

Performance score	0.14	43.84
Physical cores	1	64
Threads	1	128
Chip lithography	130 nm	7 nm
Power consumption (TDP)	24 Watt	280 Watt

Celeron M 340 has 1066.7% lower power consumption.

EPYC 7H12, on the other hand, has a 31214.3% higher aggregate performance score, 6300% more physical cores and 12700% more threads, and a 1757.1% more advanced lithography process.

The EPYC 7H12 is our recommended choice as it beats the Celeron M 340 in performance tests.

Be aware that Celeron M 340 is a notebook processor while EPYC 7H12 is a server/workstation one.

Should you still have questions on choice between Celeron M 340 and EPYC 7H12, ask them in Comments section, and we shall answer.