Ryzen 9 6900HX vs Xeon Platinum 8351N

Primary details

Comparing Xeon Platinum 8351N and Ryzen 9 6900HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	436
Place by popularity	not in top-100	not in top-100
Market segment	Server	Laptop
Series	no data	AMD Rembrandt (Zen 3+)
Power efficiency	no data	32.79
Architecture codename	Ice Lake-SP (2021)	Rembrandt-H (Zen 3+) (2022)
Release date	6 April 2021 (3 years ago)	January 2022 (2 years ago)

Detailed specifications

Xeon Platinum 8351N and Ryzen 9 6900HX 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	36	8 (Octa-Core)
Threads	72	16
Base clock speed	2.4 GHz	3.3 GHz
Boost clock speed	3.5 GHz	4.9 GHz
L1 cache	64K (per core)	64K (per core)
L2 cache	1 MB (per core)	512K (per core)
L3 cache	54 MB (shared)	16 MB (shared)
Chip lithography	10 nm	6 nm
Die size	no data	208 mm2
Maximum core temperature	no data	95 °C
Maximum case temperature (TCase)	76 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	-	+

Compatibility

Information on Xeon Platinum 8351N and Ryzen 9 6900HX 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	1
Socket	FCLGA4189	FP7
Power consumption (TDP)	225 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 8351N and Ryzen 9 6900HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512	MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA
AES-NI	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Precision Boost 2	no data	+
Deep Learning Boost	+	-

Security technologies

Xeon Platinum 8351N and Ryzen 9 6900HX technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
SGX	Yes with Intel® SPS	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Platinum 8351N and Ryzen 9 6900HX are enumerated here.

AMD-V	-	+
VT-d	+	no data
VT-x	+	no data
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Platinum 8351N and Ryzen 9 6900HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2933	DDR5
Maximum memory size	6 TB	no data
Max memory channels	8	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon 680M

Peripherals

Specifications and connection of peripherals supported by Xeon Platinum 8351N and Ryzen 9 6900HX.

PCIe version	4.0	4.0
PCI Express lanes	64	20

Synthetic benchmark performance

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

---

---

Pros & cons summary

---

Physical cores	36	8
Threads	72	16
Chip lithography	10 nm	6 nm
Power consumption (TDP)	225 Watt	45 Watt

---

Should you still have questions on choice between Xeon Platinum 8351N and Ryzen 9 6900HX, ask them in Comments section, and we shall answer.

Vote for your favorite

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

---