Core 2 Quad Q9650 vs Xeon L5609

Place in the ranking	1881	2103
Place by popularity	not in top-100	not in top-100
Market segment	Server	Desktop processor
Power efficiency	4.92	1.55
Architecture codename	Westmere-EP (2010−2011)	Yorkfield (2007−2009)
Release date	16 March 2010 (14 years ago)	August 2008 (16 years ago)

Detailed specifications

Xeon L5609 and Core 2 Quad Q9650 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)	4 (Quad-Core)
Threads	4	4
Base clock speed	1.86 GHz	3 GHz
Boost clock speed	1.86 GHz	3 GHz
Bus rate	no data	1333 MHz
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	6 MB (per die)
L3 cache	12 MB (shared)	0 KB
Chip lithography	32 nm	45 nm
Die size	239 mm²	2x 107 mm²
Maximum core temperature	63 °C	71 °C
Number of transistors	1,170 million	820 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	0.85V-1.3625V

Compatibility

Information on Xeon L5609 and Core 2 Quad Q9650 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	FCLGA1366,LGA1366	LGA775
Power consumption (TDP)	40 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon L5609 and Core 2 Quad Q9650. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
AES-NI	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	-	+
Demand Based Switching	+	-
PAE	40 Bit	no data
FSB parity	no data	-

Security technologies

Xeon L5609 and Core 2 Quad Q9650 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon L5609 and Core 2 Quad Q9650 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon L5609 and Core 2 Quad Q9650. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR1, DDR2, DDR3
Maximum memory size	288 GB	no data
Max memory channels	3	no data
Maximum memory bandwidth	25.6 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Xeon L5609 and Core 2 Quad Q9650.

PCIe version

2.0

no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Xeon L5609 2.16
+33.3%

Core 2 Quad Q9650 1.62

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Xeon L5609 3298
+33.3%

Core 2 Quad Q9650 2475