Intel Xeon E3-1240 v3 vs Intel Xeon E5-2643

Comparative analysis of Intel Xeon E3-1240 v3 and Intel Xeon E5-2643 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score.

Intel Xeon E3-1240 v3

Intel Xeon E5-2643

Differences

Reasons to consider the Intel Xeon E3-1240 v3

CPU is newer: launch date 1 year(s) 3 month(s) later
Around 9% higher clock speed: 3.80 GHz vs 3.50 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
Around 63% lower typical power consumption: 80 Watt vs 130 Watt
Around 33% better performance in PassMark - Single thread mark: 2143 vs 1611
Around 34% better performance in Geekbench 4 - Single Core: 857 vs 638
Around 18% better performance in Geekbench 4 - Multi-Core: 3271 vs 2761

Specifications (specs)
Launch date	June 2013 vs March 2012
Maximum frequency	3.80 GHz vs 3.50 GHz
Manufacturing process technology	22 nm vs 32 nm
Thermal Design Power (TDP)	80 Watt vs 130 Watt
Benchmarks
PassMark - Single thread mark	2143 vs 1611
Geekbench 4 - Single Core	857 vs 638
Geekbench 4 - Multi-Core	3271 vs 2761

Reasons to consider the Intel Xeon E5-2643

Around 25% more L3 cache; more data can be stored in the L3 cache for quick access later
12x more maximum memory size: 384 GB vs 32 GB
Around 40% better performance in PassMark - CPU mark: 9863 vs 7031

Specifications (specs)
L3 cache	10240 KB (shared) vs 8192 KB (shared)
Maximum memory size	384 GB vs 32 GB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	9863 vs 7031

Compare benchmarks

CPU 1: Intel Xeon E3-1240 v3
CPU 2: Intel Xeon E5-2643

PassMark - Single thread mark

CPU 1

CPU 2

2143

1611

PassMark - CPU mark

CPU 1

CPU 2

7031

9863

Geekbench 4 - Single Core

CPU 1

CPU 2

857

638

Geekbench 4 - Multi-Core

CPU 1

CPU 2

3271

2761

Name	Intel Xeon E3-1240 v3	Intel Xeon E5-2643
PassMark - Single thread mark	2143	1611
PassMark - CPU mark	7031	9863
Geekbench 4 - Single Core	857	638
Geekbench 4 - Multi-Core	3271	2761
3DMark Fire Strike - Physics Score	0

Compare specifications (specs)

	Intel Xeon E3-1240 v3	Intel Xeon E5-2643
Essentials
Architecture codename	Haswell	Sandy Bridge EP
Launch date	June 2013	March 2012
Launch price (MSRP)	$300	$218
Place in performance rating	1867	1877
Price now	$384.40	$2,664
Processor Number	E3-1240 v3	E5-2643
Series	Intel® Xeon® Processor E3 v3 Family	Intel® Xeon® Processor E5 Family
Status	Discontinued	Discontinued
Value for money (0-100)	7.41	0.93
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	3.40 GHz	3.30 GHz
Bus Speed	5 GT/s DMI	8 GT/s QPI
Die size	160 mm	294 mm
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	8192 KB (shared)	10240 KB (shared)
Manufacturing process technology	22 nm	32 nm
Maximum frequency	3.80 GHz	3.50 GHz
Number of cores	4	4
Number of QPI Links	0	2
Number of threads	8	8
Transistor count	1400 million	1270 million
Maximum core temperature		73°C
VID voltage range		0.60V-1.35V
Memory
ECC memory support
Max memory channels	2	4
Maximum memory bandwidth	25.6 GB/s	51.2 GB/s
Maximum memory size	32 GB	384 GB
Supported memory types	DDR3 and DDR3L 1333/1600 at 1.5V	DDR3 800/1066/1333/1600
Graphics
Processor graphics	None
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	37.5mm x 37.5mm	52.5mm x 45.0mm
Sockets supported	FCLGA1150	FCLGA2011
Thermal Design Power (TDP)	80 Watt	130 Watt
Thermal Solution	PCG 2013D
Peripherals
Max number of PCIe lanes	16	40
PCI Express revision	3.0	3.0
PCIe configurations	1x16, 2x8, 1x8/2x4
Scalability	1S Only	2S Only
Security & Reliability
Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Intel® Demand Based Switching
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)