Xeon Gold 6448Y vs Platinum 8458P

Primary details

Comparing Xeon Platinum 8458P and Xeon Gold 6448Y processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	79
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	26.89
Market segment	Server	Server
Power efficiency	no data	16.00
Architecture codename	Sapphire Rapids (2023−2024)	Sapphire Rapids (2023−2024)
Release date	10 January 2023 (1 year ago)	10 January 2023 (1 year ago)
Launch price (MSRP)	$6,759	$3,583

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Platinum 8458P and Xeon Gold 6448Y 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	44	32 (Dotriaconta-Core)
Threads	88	64
Base clock speed	2.7 GHz	2.1 GHz
Boost clock speed	3.8 GHz	4.1 GHz
L1 cache	80K (per core)	80K (per core)
L2 cache	2 MB (per core)	2 MB (per core)
L3 cache	82.5 MB	60 MB
Chip lithography	Intel 7 nm	Intel 7 nm
Die size	4x 477 mm2	no data
Maximum case temperature (TCase)	78 °C	79 °C
64 bit support	+	+

Compatibility

Information on Xeon Platinum 8458P and Xeon Gold 6448Y 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	2
Socket	FCLGA4677	FCLGA4677
Power consumption (TDP)	350 Watt	225 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 8458P and Xeon Gold 6448Y. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Deep Learning Boost	+	+

Security technologies

Xeon Platinum 8458P and Xeon Gold 6448Y technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
SGX	Yes with Intel® SPS	Yes with Intel® SPS
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Platinum 8458P and Xeon Gold 6448Y are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Platinum 8458P and Xeon Gold 6448Y. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-4800, DDR5-4400	DDR5-4800, DDR5-4400
Maximum memory size	4 TB	4 TB
Max memory channels	8	8
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon Platinum 8458P and Xeon Gold 6448Y.

PCIe version	5.0	5
PCI Express lanes	80	80

Pros & cons summary

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Physical cores	44	32
Threads	88	64
Power consumption (TDP)	350 Watt	225 Watt

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Should you still have questions on choice between Xeon Platinum 8458P and Xeon Gold 6448Y, ask them in Comments section, and we shall answer.

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