Ryzen 9 9950X vs Xeon Platinum 8276

Primary details

Comparing Xeon Platinum 8276 and Ryzen 9 9950X processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Desktop processor
Series	Intel Xeon Platinum	no data
Architecture codename	Cascade Lake-SP (2019)	Granite Ridge
Release date	11 December 2018 (5 years ago)	July 2024 (recently)
Launch price (MSRP)	$8,719	no data
Current price	$4577 (0.5x MSRP)	no data

Detailed specifications

Xeon Platinum 8276 and Ryzen 9 9950X 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	28 (Octacosa-Core)	16 (Hexadeca-Core)
Threads	56	32
Base clock speed	2.2 GHz	4.3 GHz
Boost clock speed	4 GHz	5.7 GHz
L1 cache	64K (per core)	64 KB (per core)
L2 cache	1 MB (per core)	1 MB (per core)
L3 cache	38.5 MB (shared)	64 MB (shared)
Chip lithography	14 nm	4 nm
Die size	no data	2x 69 mm2
Maximum core temperature	89 °C	no data
Number of transistors	8,000 million	no data
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	No	Yes

Compatibility

Information on Xeon Platinum 8276 and Ryzen 9 9950X 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	8 (Multiprocessor)	1
Socket	FCLGA3647	AM5
Power consumption (TDP)	165 Watt	170 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 8276 and Ryzen 9 9950X. 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	no data
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	+	no data
Turbo Boost Max 3.0	-	no data
Status	Launched	no data

Security technologies

Xeon Platinum 8276 and Ryzen 9 9950X 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 Xeon Platinum 8276 and Ryzen 9 9950X are enumerated here.

AMD-V	no data	+
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 8276 and Ryzen 9 9950X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2933	DDR5
Maximum memory size	1 TB	no data
Max memory channels	6	no data
Maximum memory bandwidth	140.8 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

Peripherals

Specifications and connection of peripherals supported by Xeon Platinum 8276 and Ryzen 9 9950X.

PCIe version	3.0	5.0
PCI Express lanes	48	24

Pros & cons summary

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Physical cores	28	16
Threads	56	32
Chip lithography	14 nm	4 nm
Power consumption (TDP)	165 Watt	170 Watt

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Should you still have questions on choice between Xeon Platinum 8276 and Ryzen 9 9950X, ask them in Comments section, and we shall answer.

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