Ryzen 9 9950X vs Xeon Silver 4309Y

Primary details

Comparing Xeon Silver 4309Y and Ryzen 9 9950X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	640	58
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	65.13
Market segment	Server	Desktop processor
Power efficiency	10.86	23.14
Architecture codename	Ice Lake-SP (2021)	Granite Ridge (2024)
Release date	6 April 2021 (3 years ago)	15 August 2024 (less than a year ago)
Launch price (MSRP)	no data	$649

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Silver 4309Y 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	8 (Octa-Core)	16 (Hexadeca-Core)
Threads	16	32
Base clock speed	2.8 GHz	4.3 GHz
Boost clock speed	3.6 GHz	5.7 GHz
L1 cache	64K (per core)	80 KB (per core)
L2 cache	1 MB (per core)	1 MB (per core)
L3 cache	12 MB (shared)	64 MB (shared)
Chip lithography	10 nm	4 nm
Die size	no data	2x 70.6 mm2
Maximum core temperature	no data	95 °C
Maximum case temperature (TCase)	76 °C	no data
Number of transistors	no data	16,630 million
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	-	+

Compatibility

Information on Xeon Silver 4309Y 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	2	1
Socket	FCLGA4189	AM5
Power consumption (TDP)	105 Watt	170 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Silver 4309Y 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	SMT, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A
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 Silver 4309Y and Ryzen 9 9950X 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 Silver 4309Y and Ryzen 9 9950X 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 Silver 4309Y and Ryzen 9 9950X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2667	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 Graphics

Peripherals

Specifications and connection of peripherals supported by Xeon Silver 4309Y and Ryzen 9 9950X.

PCIe version	4.0	5.0
PCI Express lanes	64	24

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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Combined synthetic benchmark 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.

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Pros & cons summary

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Performance score	12.11	41.78
Recency	6 April 2021	15 August 2024
Physical cores	8	16
Threads	16	32
Chip lithography	10 nm	4 nm
Power consumption (TDP)	105 Watt	170 Watt

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Should you still have questions on choice between Xeon Silver 4309Y and Ryzen 9 9950X, ask them in Comments section, and we shall answer.

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