Xeon Platinum 8458P vs Core 2 Extreme QX9770

Primary details

Comparing Core 2 Extreme QX9770 and Xeon Platinum 8458P processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1655	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Power efficiency	2.02	no data
Architecture codename	Yorkfield (2007−2009)	Sapphire Rapids (2023−2024)
Release date	March 2008 (16 years ago)	10 January 2023 (1 year ago)
Launch price (MSRP)	no data	$6,759

Detailed specifications

Core 2 Extreme QX9770 and Xeon Platinum 8458P 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	4 (Quad-Core)	44
Threads	4	88
Base clock speed	3.2 GHz	2.7 GHz
Boost clock speed	3.2 GHz	3.8 GHz
Bus rate	1600 MHz	no data
L1 cache	64K (per core)	80K (per core)
L2 cache	12 MB (shared)	2 MB (per core)
L3 cache	0 KB	82.5 MB
Chip lithography	45 nm	Intel 7 nm
Die size	2x 107 mm2	4x 477 mm2
Maximum case temperature (TCase)	55 °C	78 °C
Number of transistors	820 million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	+	-
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Extreme QX9770 and Xeon Platinum 8458P 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	1	2
Socket	LGA775	FCLGA4677
Power consumption (TDP)	136 Watt	350 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme QX9770 and Xeon Platinum 8458P. 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
Thermal Monitoring	+	-
Demand Based Switching	-	no data
FSB parity	-	no data
Deep Learning Boost	-	+

Security technologies

Core 2 Extreme QX9770 and Xeon Platinum 8458P 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 Extreme QX9770 and Xeon Platinum 8458P 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 Extreme QX9770 and Xeon Platinum 8458P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR5-4800, DDR5-4400
Maximum memory size	no data	4 TB
Max memory channels	no data	8
ECC memory support	-	+

Peripherals

Specifications and connection of peripherals supported by Core 2 Extreme QX9770 and Xeon Platinum 8458P.

PCIe version	no data	5.0
PCI Express lanes	no data	80

Pros & cons summary

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Physical cores	4	44
Threads	4	88
Power consumption (TDP)	136 Watt	350 Watt

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Should you still have questions on choice between Core 2 Extreme QX9770 and Xeon Platinum 8458P, ask them in Comments section, and we shall answer.

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