i9-9900K vs Xeon Platinum 8173M

Primary details

Comparing Xeon Platinum 8173M and Core i9-9900K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	353	685
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	7.95
Market segment	Server	Desktop processor
Series	Intel Xeon Platinum	Core i9 (Desktop)
Power efficiency	no data	11.39
Architecture codename	Skylake (server) (2017−2018)	Coffee Lake-R (2018−2019)
Release date	no data	19 October 2018 (6 years ago)
Launch price (MSRP)	no data	$488

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Platinum 8173M and Core i9-9900K 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)	8 (Octa-Core)
Threads	56	16
Base clock speed	no data	3.6 GHz
Boost clock speed	2.1 GHz	5 GHz
Bus type	no data	DMI 3.0
Bus rate	no data	4 × 8 GT/s
Multiplier	21	no data
L1 cache	1.75 MB	64K (per core)
L2 cache	28 MB	256K (per core)
L3 cache	38.5 MB	16 MB (shared)
Chip lithography	14 nm	14 nm
Die size	no data	178 mm2
Maximum core temperature	no data	100 °C
Maximum case temperature (TCase)	no data	72 °C
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+

Compatibility

Information on Xeon Platinum 8173M and Core i9-9900K 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 (Uniprocessor)
Socket	Socket P	LGA-1151
Power consumption (TDP)	no data	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 8173M and Core i9-9900K. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	no data	+
TSX	+	+
Idle States	no data	+
Thermal Monitoring	-	+
SIPP	-	+

Security technologies

Xeon Platinum 8173M and Core i9-9900K technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	no data	+
Secure Key	no data	+
MPX	-	+
Identity Protection	-	+
SGX	no data	Yes with Intel® ME
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Platinum 8173M and Core i9-9900K are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Platinum 8173M and Core i9-9900K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4
Maximum memory size	1,536 GB	128 GB
Max memory channels	6	2
Maximum memory bandwidth	128.001 GB/s	44.668 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel UHD Graphics 630
Max video memory	no data	64 GB
Quick Sync Video	-	+
Clear Video	no data	+
Clear Video HD	no data	+
Graphics max frequency	no data	1.2 GHz
InTru 3D	no data	+

Graphics interfaces

Available interfaces and connections of Xeon Platinum 8173M and Core i9-9900K integrated GPUs.

Number of displays supported

no data

3

Graphics image quality

Maximum display resolutions supported by Xeon Platinum 8173M and Core i9-9900K integrated GPUs, including resolutions over different interfaces.

4K resolution support	no data	+
Max resolution over HDMI 1.4	no data	4096 x 2304@24Hz
Max resolution over eDP	no data	4096 x 2304@60Hz
Max resolution over DisplayPort	no data	4096 x 2304@60Hz

Graphics API support

APIs supported by Xeon Platinum 8173M and Core i9-9900K integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Xeon Platinum 8173M and Core i9-9900K.

PCIe version	3.0	3.0
PCI Express lanes	48	16

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	17.64	11.49
Physical cores	28	8
Threads	56	16

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Should you still have questions on choice between Xeon Platinum 8173M and Core i9-9900K, ask them in Comments section, and we shall answer.

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