AMD Ryzen 9 7900X vs EPYC 7H12

General info

Comparing EPYC 7H12 and Ryzen 9 7900X processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance rating	2	50
Value for money	9.35	49.49
Market segment	Server	Desktop processor
Series	AMD EPYC	no data
Architecture codename	Zen 2 (2019−2020)	Raphael (Zen4)
Release date	18 September 2019 (3 years old)	26 September 2022 (less than a year old)
Current price	$4280	$578

Technical specs

EPYC 7H12 and Ryzen 9 7900X 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	64 (Tetrahexaconta-Core)	12 (Dodeca-Core)
Threads	128	24
Base clock speed	2.6 GHz	4.7 GHz
Boost clock speed	3.3 GHz	5.6 GHz
L1 cache	96K (per core)	64K (per core)
L2 cache	512K (per core)	1 MB (per core)
L3 cache	256 MB (shared)	64 MB (shared)
Chip lithography	7 nm, 14 nm	5 nm
Die size	192 mm2	2x 70 (CCD) mm2 + 122 (I/O) mm2
Maximum core temperature	no data	95 °C
Maximum case temperature (TCase)	no data	47 °C
Number of transistors	4,800 million	CCD: 6,5 Mrd + IOD: 3,4 Mrd Million
64 bit support	+	-
Windows 11 compatibility	+	+
Unlocked multiplier	+	+

Compatibility

Information on EPYC 7H12 and Ryzen 9 7900X 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	2 (Multiprocessor)	1
Socket	TR4	AM5
Thermal design power (TDP)	280 Watt	170 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7H12 and Ryzen 9 7900X. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	5 nm (CCD), 6 nm (I/O) nm, 0.650 - 1.475V
AES-NI	+	+
AVX	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7H12 and Ryzen 9 7900X are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7H12 and Ryzen 9 7900X. Depending on the motherboards, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	DDR5-5200
Maximum memory size	4 TiB	no data
Max memory channels	8	no data
Maximum memory bandwidth	204.763 GB/s	no data
ECC memory support	+	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon Graphics (Ryzen 7000)

Peripherals

Specifications and connection of peripherals supported by EPYC 7H12 and Ryzen 9 7900X.

PCIe version

no data

5.0

Benchmark performance

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

---

Overall 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.

Advantages and disadvantages

---

Performance rating	79.98	41.48
Recency	18 September 2019	26 September 2022
Boost clock speed	3300	5600
Base clock speed	2600	4700
Chip lithography	7 nm	5 nm
Thermal design power (TDP)	280 Watt	170 Watt

---

Should you still have questions on choice between EPYC 7H12 and Ryzen 9 7900X, ask them in Comments section, and we shall answer.

Cast your vote

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---