Duo T2600 vs Xeon X5647

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1991	3443
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.55	no data
Market segment	Server	Laptop
Series	no data	Intel Core Duo
Power efficiency	0.82	0.35
Designer	Intel	Intel
Manufacturer	Intel	no data
Architecture codename	Westmere-EP (2010−2011)	Yonah (2005−2006)
Release date	14 February 2011 (15 years ago)	5 January 2006 (20 years ago)
Launch price (MSRP)	$175	$440

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon X5647 and Duo T2600 have a nearly equal value for money.

Performance to price scatter graph

Currently popular graphics cards are shown for comparison.

Detailed specifications

Basic parameters of Xeon X5647 and Core Duo T2600: 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)	2 (Dual-core)
Threads	8	2
Base clock speed	2.93 GHz	2.16 GHz
Boost clock speed	3.2 GHz	2.16 GHz
Bus rate	no data	667 MHz
L1 cache	64 KB (per core)	0 KB
L2 cache	256 KB (per core)	2 MB
L3 cache	12 MB (shared)	0 KB
Chip lithography	32 nm	65 nm
Die size	239 mm2	90 mm2
Maximum core temperature	80 °C	100 °C
Number of transistors	1,170 million	151 Million
64 bit support	+	-
Windows 11 compatibility	-	-
VID voltage range	no data	1.1625V - 1.3V

Compatibility

Information on Xeon X5647 and Core Duo T2600 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	PPGA478, PBGA479
Power consumption (TDP)	130 Watt	31 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon X5647 and Core Duo T2600. 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	1.0	-
Hyper-Threading Technology	+	-
Idle States	+	-
Demand Based Switching	+	-
PAE	40 Bit	32 Bit
FSB parity	no data	-

Security technologies

Xeon X5647 and Core Duo T2600 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon X5647 and Core Duo T2600 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon X5647 and Core Duo T2600. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR1
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 X5647 and Core Duo T2600.

PCIe version

2.0

no data

Synthetic benchmarks

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

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Combined synthetic benchmark score

This is our combined benchmark performance rating.

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Pros & cons summary

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Performance score	2.54	0.26
Recency	14 February 2011	5 January 2006
Physical cores	4	2
Threads	8	2
Chip lithography	32 nm	65 nm
Power consumption (TDP)	130 Watt	31 Watt