Core 2 Quad Q8400s vs Core 2 Duo T9500

Primary details

Comparing Core 2 Duo T9500 and Core 2 Quad Q8400s processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2377	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core 2 Duo	no data
Power efficiency	3.07	no data
Architecture codename	Penryn (2008−2011)	Yorkfield (2007−2009)
Release date	10 January 2008 (16 years ago)	19 April 2009 (15 years ago)
Launch price (MSRP)	$530	no data

Detailed specifications

Core 2 Duo T9500 and Core 2 Quad Q8400s 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	4
Base clock speed	2.6 GHz	2.66 GHz
Boost clock speed	2.6 GHz	0.67 GHz
Bus rate	800 MHz	1333 MHz
L1 cache	128 KB	64 KB (per core)
L2 cache	6 MB	4 MB (shared)
L3 cache	6 MB L2 Cache	0 KB
Chip lithography	45 nm	45 nm
Die size	107 mm2	2x 82 mm2
Maximum core temperature	105 °C	no data
Maximum case temperature (TCase)	no data	76 °C
Number of transistors	410 Million	456 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1V-1.25V	0.85V-1.3625V

Compatibility

Information on Core 2 Duo T9500 and Core 2 Quad Q8400s 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	no data	1
Socket	BGA479,PBGA479,PGA478,PPGA478	FCLGA775,LGA775
Power consumption (TDP)	35 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T9500 and Core 2 Quad Q8400s. 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 T9500 and Core 2 Quad Q8400s 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 T9500 and Core 2 Quad Q8400s are enumerated here.

VT-x

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T9500 and Core 2 Quad Q8400s. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR1, DDR2, DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo T9500 and Core 2 Quad Q8400s.

PCIe version

no data

2.0

Pros & cons summary

---

Recency	10 January 2008	19 April 2009
Physical cores	2	4
Threads	2	4
Power consumption (TDP)	35 Watt	65 Watt

---

Should you still have questions on choice between Core 2 Duo T9500 and Core 2 Quad Q8400s, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---