Core 2 Quad Q9505S vs Core 2 Duo E8400

Primary details

Comparing Core 2 Duo E8400 and Core 2 Quad Q9505S processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2686	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Power efficiency	1.06	no data
Architecture codename	Wolfdale (2008−2010)	no data
Release date	1 January 2008 (16 years ago)	1 July 2009 (15 years ago)

Detailed specifications

Core 2 Duo E8400 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	2 (Dual-core)	4 (Quad-Core)
Threads	2	no data
Base clock speed	3 GHz	2.83 GHz
Boost clock speed	3 GHz	no data
Bus rate	1333 MHz	1333 MHz
L1 cache	64 KB (per core)	no data
L2 cache	6 MB (shared)	no data
L3 cache	0 KB	6 MB L2 Cache
Chip lithography	45 nm	45 nm
Die size	104 mm2	no data
Maximum core temperature	no data	76 °C
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	410 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.3625V	0.85V-1.3625V

Compatibility

Information on Core 2 Duo E8400 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)	65 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo E8400 and Core 2 Quad Q9505S. You'll probably need this information if you require some particular technology.

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

Security technologies

Core 2 Duo E8400 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 Duo E8400 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 Duo E8400 and Core 2 Quad Q9505S. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

no data

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo E8400 and Core 2 Quad Q9505S.

PCIe version

2.0

no data

Pros & cons summary

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Recency	1 January 2008	1 July 2009
Physical cores	2	4

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