Ryzen 9 3900XT vs Xeon Platinum 8168

Primary details

Comparing Xeon Platinum 8168 and Ryzen 9 3900XT processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	225	227
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	18.59	37.06
Market segment	Server	Desktop processor
Series	Intel Xeon Platinum	AMD Ryzen 9
Architecture codename	Skylake (server) (2017−2019)	Matisse 2 (2020)
Release date	25 April 2017 (7 years ago)	7 July 2020 (3 years ago)
Launch price (MSRP)	$5,890	$499
Current price	$899 (0.2x MSRP)	$450 (0.9x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 9 3900XT has 99% better value for money than Xeon Platinum 8168.

Detailed specifications

Xeon Platinum 8168 and Ryzen 9 3900XT 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	24 (Tetracosa-Core)	12 (Dodeca-Core)
Threads	48	24
Base clock speed	2.7 GHz	3.8 GHz
Boost clock speed	3.7 GHz	4.7 GHz
L1 cache	1.5 MB	96K (per core)
L2 cache	24 MB	512K (per core)
L3 cache	33 MB	64 MB
Chip lithography	14 nm	7 nm, 12 nm
Die size	no data	74 mm2
Maximum core temperature	85 °C	no data
Maximum case temperature (TCase)	no data	95 °C
Number of transistors	no data	3,800 million
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	No	Yes

Compatibility

Information on Xeon Platinum 8168 and Ryzen 9 3900XT 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	AM4
Power consumption (TDP)	205 Watt	105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 8168 and Ryzen 9 3900XT. 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	Discontinued	no data

Security technologies

Xeon Platinum 8168 and Ryzen 9 3900XT 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 8168 and Ryzen 9 3900XT 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 8168 and Ryzen 9 3900XT. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4-3200
Maximum memory size	768 GB	128 GB
Max memory channels	6	2
Maximum memory bandwidth	128.001 GB/s	51.196 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon Platinum 8168 and Ryzen 9 3900XT.

PCIe version	3.0	4.0
PCI Express lanes	48	no data

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.

Pros & cons summary

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Performance score	21.21	21.17
Recency	25 April 2017	7 July 2020
Physical cores	24	12
Threads	48	24
Cost	$5890	$499
Chip lithography	14 nm	7 nm
Power consumption (TDP)	205 Watt	105 Watt

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Should you still have questions on choice between Xeon Platinum 8168 and Ryzen 9 3900XT, ask them in Comments section, and we shall answer.

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