Xeon Platinum 8558U vs Core 2 Duo T9400

Primary details

Comparing Core 2 Duo T9400 and Xeon Platinum 8558U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2758	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Intel Core 2 Duo	no data
Power efficiency	1.72	no data
Architecture codename	Penryn (2008−2011)	Emerald Rapids (2023)
Release date	15 July 2008 (16 years ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$316	$3,720

Detailed specifications

Core 2 Duo T9400 and Xeon Platinum 8558U 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	2 (Dual-core)	48 (Octatetraconta-Core)
Threads	2	96
Base clock speed	2.53 GHz	2 GHz
Boost clock speed	2.53 GHz	4 GHz
Bus rate	1066 MHz	no data
L1 cache	128 KB	80 KB (per core)
L2 cache	6 MB	2 MB (per core)
L3 cache	6 MB L2 Cache	260 MB (shared)
Chip lithography	45 nm	Intel 7 nm
Die size	107 mm2	2x 763 mm2
Maximum core temperature	105 °C	no data
Maximum case temperature (TCase)	no data	78 °C
Number of transistors	410 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data
VID voltage range	1.05V-1.162V	no data

Compatibility

Information on Core 2 Duo T9400 and Xeon Platinum 8558U 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	no data	1
Socket	BGA479,BGA956,PBGA479,PGA478	FCLGA4677
Power consumption (TDP)	35 Watt	300 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T9400 and Xeon Platinum 8558U. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	-	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	-	no data
Demand Based Switching	-	no data
FSB parity	-	no data
Deep Learning Boost	-	+

Security technologies

Core 2 Duo T9400 and Xeon Platinum 8558U technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
SGX	no data	Yes with Intel® SPS
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo T9400 and Xeon Platinum 8558U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T9400 and Xeon Platinum 8558U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR5 @ 4800 MT/s (1 DPC)
Maximum memory size	no data	4 TB
Max memory channels	no data	8
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo T9400 and Xeon Platinum 8558U.

PCIe version	no data	5.0
PCI Express lanes	no data	80

Pros & cons summary

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Recency	15 July 2008	14 December 2023
Physical cores	2	48
Threads	2	96
Power consumption (TDP)	35 Watt	300 Watt

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Should you still have questions on choice between Core 2 Duo T9400 and Xeon Platinum 8558U, ask them in Comments section, and we shall answer.

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