Core 2 Quad Q9400s vs Xeon X5698

Primary details

Comparing Xeon X5698 and Core 2 Quad Q9400s processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1747	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.11	no data
Market segment	Server	Desktop processor
Architecture codename	Westmere-EP (2010−2011)	Yorkfield (2007−2009)
Release date	14 February 2011 (13 years ago)	January 2009 (15 years ago)
Current price	$997	$120

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon X5698 and Core 2 Quad Q9400s 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)	4 (Quad-Core)
Threads	4	4
Base clock speed	4.4 GHz	2.66 GHz
Boost clock speed	4.4 GHz	2.67 GHz
L1 cache	64 KB (per core)	64K (per core)
L2 cache	256 KB (per core)	6 MB (shared)
L3 cache	12288 KB (shared)	0 KB
Chip lithography	32 nm	45 nm
Die size	239 mm2	2x 81 mm2
Maximum core temperature	no data	76 °C
Maximum case temperature (TCase)	no data	76 °C
Number of transistors	1,170 million	456 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No
VID voltage range	no data	0.85V-1.3625V

Compatibility

Information on Xeon X5698 and Core 2 Quad Q9400s 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	1
Socket	1366	LGA775
Power consumption (TDP)	130 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon X5698 and Core 2 Quad Q9400s. You'll probably need this information if you require some particular technology.

AES-NI	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	no data	-
Hyper-Threading Technology	+	-
Idle States	no data	+
Thermal Monitoring	no data	+
Demand Based Switching	no data	-
FSB parity	no data	-
Status	no data	Discontinued

Security technologies

Xeon X5698 and Core 2 Quad Q9400s technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon X5698 and Core 2 Quad Q9400s are enumerated here.

VT-d	no data	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon X5698 and Core 2 Quad Q9400s. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3

DDR1, DDR2, DDR3

Peripherals

Specifications and connection of peripherals supported by Xeon X5698 and Core 2 Quad Q9400s.

PCIe version

2.0

no data

Pros & cons summary

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Physical cores	2	4
Chip lithography	32 nm	45 nm
Power consumption (TDP)	130 Watt	65 Watt

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Should you still have questions on choice between Xeon X5698 and Core 2 Quad Q9400s, ask them in Comments section, and we shall answer.

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