Core 2 Quad Q9505S vs Core 2 Quad Q9400

Primary Details

Comparing Core 2 Quad Q9400 and Core 2 Quad Q9505S processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2112	not rated
Place by popularity	not in top-100	not in top-100
Cost-Effectiveness Evaluation	3.51	no data
Market segment	Desktop processor	Desktop processor
Architecture codename	Yorkfield (2007−2009)	no data
Release date	August 2008 (15 years ago)	1 July 2009 (14 years ago)
Current price	$84	$1555

Cost-Effectiveness Evaluation

Performance per price, higher is better.

Detailed Specifications

Core 2 Quad Q9400 and Core 2 Quad Q9505S 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)	no data
Threads	4	no data
Base clock speed	2.66 GHz	2.83 GHz
Boost clock speed	2.67 GHz	no data
L1 cache	64K (per core)	no data
L2 cache	6 MB (shared)	no data
L3 cache	0 KB	6 MB L2 KB
Chip lithography	45 nm	45 nm
Die size	2x 81 mm2	no data
Maximum core temperature	71 °C	76 °C
Maximum case temperature (TCase)	71 °C	no data
Number of transistors	456 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No
VID voltage range	0.85V-1.3625V	0.85V-1.3625V

Compatibility

Information on Core 2 Quad Q9400 and Core 2 Quad Q9505S 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	no data
Socket	LGA775	LGA775
Power consumption (TDP)	95 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q9400 and Core 2 Quad Q9505S. You'll probably need this information if you require some particular technology.

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

Security technologies

Core 2 Quad Q9400 and Core 2 Quad Q9505S technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q9400 and Core 2 Quad Q9505S are enumerated here.

VT-d	+	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9400 and Core 2 Quad Q9505S. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

no data

Pros & Cons Summary

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Power consumption (TDP)

95 Watt

65 Watt

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Should you still have questions on choice between Core 2 Quad Q9400 and Core 2 Quad Q9505S, ask them in Comments section, and we shall answer.

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