Xeon E3-1558L v5 vs i7-950

Primary details

Comparing Core i7-950 and Xeon E3-1558L v5 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1909	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.13	no data
Market segment	Desktop processor	Server
Series	Core i7 (Desktop)	Intel Xeon E3
Power efficiency	1.48	no data
Architecture codename	Bloomfield (2008−2010)	Skylake-H (2015−2016)
Release date	2 June 2009 (15 years ago)	31 May 2016 (8 years ago)
Launch price (MSRP)	$290	$396

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-950 and Xeon E3-1558L v5 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	8	8
Base clock speed	3.06 GHz	1.9 GHz
Boost clock speed	3.33 GHz	3.3 GHz
Bus type	no data	DMI 3.0
Bus rate	1333 MHz	4 × 8 GT/s
Multiplier	no data	19
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	8 MB (shared)	8 MB (shared)
Chip lithography	45 nm	14 nm
Die size	263 mm2	171 mm2
Maximum core temperature	68 °C	no data
Number of transistors	731 million	2,300 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-950 and Xeon E3-1558L v5 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	1 (Uniprocessor)
Socket	FCLGA1366	Intel BGA 1440
Power consumption (TDP)	130 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-950 and Xeon E3-1558L v5. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
AES-NI	-	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	1.0	no data
Hyper-Threading Technology	+	no data
TSX	-	+
Idle States	+	no data
Demand Based Switching	-	no data
PAE	36 Bit	no data

Security technologies

Core i7-950 and Xeon E3-1558L v5 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-950 and Xeon E3-1558L v5 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-950 and Xeon E3-1558L v5. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	LPDDR3-1866
Maximum memory size	24 GB	64 GB
Max memory channels	3	2
Maximum memory bandwidth	25.6 GB/s	34.134 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

Intel Iris Pro Graphics P555

Peripherals

Specifications and connection of peripherals supported by Core i7-950 and Xeon E3-1558L v5.

PCIe version	2.0	3.0
PCI Express lanes	no data	16

Pros & cons summary

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Recency	2 June 2009	31 May 2016
Chip lithography	45 nm	14 nm
Power consumption (TDP)	130 Watt	45 Watt

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Should you still have questions on choice between Core i7-950 and Xeon E3-1558L v5, ask them in Comments section, and we shall answer.

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