Xeon 6972P vs Core 2 Quad Q9400

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2420	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Power efficiency	0.55	no data
Designer	Intel	Intel
Manufacturer	no data	Intel
Architecture codename	Yorkfield (2007−2009)	Granite Rapids (2024−2025)
Release date	August 2008 (16 years ago)	24 September 2024 (less than a year ago)

Detailed specifications

Core 2 Quad Q9400 and Xeon 6972P 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)	96
Threads	4	192
Base clock speed	2.66 GHz	2.4 GHz
Boost clock speed	2.67 GHz	3.9 GHz
Bus rate	1333 MHz	no data
L1 cache	64K (per core)	112 KB (per core)
L2 cache	6 MB (shared)	2 MB (per core)
L3 cache	0 KB	480 MB (shared)
Chip lithography	45 nm	Intel 3 nm
Die size	2x 81 mm2	no data
Maximum case temperature (TCase)	71 °C	80 °C
Number of transistors	456 million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Quad Q9400 and Xeon 6972P 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	FCLGA7529
Power consumption (TDP)	95 Watt	500 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q9400 and Xeon 6972P. 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	-	+
Enhanced SpeedStep (EIST)	+	+
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 Quad Q9400 and Xeon 6972P technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
SGX	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q9400 and Xeon 6972P are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9400 and Xeon 6972P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR5(6400 MHz)MRDIMM(8800 MHz)
Maximum memory size	no data	3 TB
Max memory channels	no data	12
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 Quad Q9400 and Xeon 6972P.

PCIe version	no data	5.0
PCI Express lanes	no data	96

Pros & cons summary

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Physical cores	4	96
Threads	4	192
Power consumption (TDP)	95 Watt	500 Watt

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