Xeon Gold 6426Y vs Gold 6448Y

Place in performance ranking	67	160
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Architecture codename	Sapphire Rapids	Sapphire Rapids
Release date	10 January 2023 (1 year ago)	10 January 2023 (1 year ago)

Detailed specifications

Xeon Gold 6448Y and Xeon Gold 6426Y 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	32 (Dotriaconta-Core)	16 (Hexadeca-Core)
Threads	64	32
Base clock speed	2.1 GHz	2.5 GHz
Boost clock speed	4.1 GHz	4.1 GHz
L1 cache	80K (per core)	80K (per core)
L2 cache	2 MB (per core)	2 MB (per core)
L3 cache	60 MB	37.5 MB
Chip lithography	Intel 7 nm	Intel 7 nm
Maximum core temperature	79 °C	80 °C
Maximum case temperature (TCase)	79 °C	80 °C
64 bit support	+	+
Unlocked multiplier	No	No

Compatibility

Information on Xeon Gold 6448Y and Xeon Gold 6426Y 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)	225 Watt	185 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Gold 6448Y and Xeon Gold 6426Y. 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	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Status	Launched	Launched

Security technologies

Xeon Gold 6448Y and Xeon Gold 6426Y 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 Gold 6448Y and Xeon Gold 6426Y are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Gold 6448Y and Xeon Gold 6426Y. 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 Gold 6448Y and Xeon Gold 6426Y.

PCIe version	5	5
PCI Express lanes	80	80

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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.

Xeon Gold 6448Y 39.08
+45.2%

Xeon Gold 6426Y 26.91

Gold 6448Y outperforms Gold 6426Y by 45% based on our aggregated benchmark results.

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Benchmark coverage: 68%

Xeon Gold 6448Y 60449
+45.2%

Xeon Gold 6426Y 41625

Gold 6448Y outperforms Gold 6426Y by 45% in Passmark.