Core 2 Duo SL9400 vs Xeon E5540

Primary details

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

Place in the ranking	2296	3206
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.64	0.01
Market segment	Server	Laptop
Series	no data	Intel Core 2 Duo
Power efficiency	2.13	no data
Designer	Intel	Intel
Manufacturer	Intel	no data
Architecture codename	Gainestown (2009−2010)	Penryn (2008−2011)
Release date	30 March 2009 (16 years ago)	20 August 2008 (17 years ago)
Launch price (MSRP)	$30	$284

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E5540 has 6300% better value for money than Core 2 Duo SL9400.

Performance to price scatter graph

Detailed specifications

Xeon E5540 and Core 2 Duo SL9400 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)	2 (Dual-core)
Threads	8	2
Base clock speed	2.53 GHz	1.86 GHz
Boost clock speed	2.8 GHz	1.86 GHz
Bus rate	no data	1066 MHz
L1 cache	64 KB (per core)	no data
L2 cache	256 KB (per core)	6 MB
L3 cache	8 MB (shared)	6 MB L2 Cache
Chip lithography	45 nm	45 nm
Die size	263 mm2	107 mm2
Maximum core temperature	76 °C	105 °C
Number of transistors	731 million	410 Million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	1.05V - 1.15V

Compatibility

Information on Xeon E5540 and Core 2 Duo SL9400 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	no data
Socket	FCLGA1366	BGA956
Power consumption (TDP)	80 Watt	17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5540 and Core 2 Duo SL9400. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	1.0	-
Hyper-Threading Technology	+	-
Idle States	+	-
Demand Based Switching	+	-
PAE	40 Bit	no data
FSB parity	no data	-

Security technologies

Xeon E5540 and Core 2 Duo SL9400 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5540 and Core 2 Duo SL9400 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 E5540 and Core 2 Duo SL9400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	no data
Maximum memory size	144 GB	no data
Max memory channels	3	no data
Maximum memory bandwidth	25.6 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

no data

Peripherals

Specifications and connection of peripherals supported by Xeon E5540 and Core 2 Duo SL9400.

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	1.59	0.43
Recency	30 March 2009	20 August 2008
Physical cores	4	2
Threads	8	2
Power consumption (TDP)	80 Watt	17 Watt

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