Intel Xeon E3-1240 vs Intel Xeon E5649

Comparative analysis of Intel Xeon E3-1240 and Intel Xeon E5649 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, 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, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

Intel Xeon E3-1240

Intel Xeon E5649

Differences

Reasons to consider the Intel Xeon E3-1240

CPU is newer: launch date 1 month(s) later
Around 26% higher clock speed: 3.70 GHz vs 2.93 GHz
Around 42% better performance in PassMark - Single thread mark: 1723 vs 1214
Around 52% better performance in Geekbench 4 - Single Core: 714 vs 470
Around 73% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 4.497 vs 2.594
3x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 76.242 vs 25.435

Specifications (specs)
Launch date	April 2011 vs February 2011
Maximum frequency	3.70 GHz vs 2.93 GHz
Benchmarks
PassMark - Single thread mark	1723 vs 1214
Geekbench 4 - Single Core	714 vs 470
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	4.497 vs 2.594
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	76.242 vs 25.435

Reasons to consider the Intel Xeon E5649

2 more cores, run more applications at once: 6 vs 4
4 more threads: 12 vs 8
Around 10% higher maximum core temperature: 76.2°C vs 69.1°C
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 50% more L3 cache; more data can be stored in the L3 cache for quick access later
9x more maximum memory size: 288 GB vs 32 GB
Around 77% better performance in PassMark - CPU mark: 9558 vs 5403
Around 4% better performance in Geekbench 4 - Multi-Core: 2849 vs 2746
Around 20% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.647 vs 0.537

Specifications (specs)
Number of cores	6 vs 4
Number of threads	12 vs 8
Maximum core temperature	76.2°C vs 69.1°C
L1 cache	64 KB (per core) vs 64 KB (per core)
L2 cache	256 KB (per core) vs 256 KB (per core)
L3 cache	12288 KB (shared) vs 8192 KB (shared)
Maximum memory size	288 GB vs 32 GB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	9558 vs 5403
Geekbench 4 - Multi-Core	2849 vs 2746
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.647 vs 0.537

Compare benchmarks

CPU 1: Intel Xeon E3-1240
CPU 2: Intel Xeon E5649

PassMark - Single thread mark

CPU 1

CPU 2

1723

1214

PassMark - CPU mark

CPU 1

CPU 2

5403

9558

Geekbench 4 - Single Core

CPU 1

CPU 2

714

470

Geekbench 4 - Multi-Core

CPU 1

CPU 2

2746

2849

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

4.497

2.594

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

CPU 1

CPU 2

76.242

25.435

CompuBench 1.5 Desktop - T-Rex (Frames/s)

CPU 1

CPU 2

0.537

0.647

Name	Intel Xeon E3-1240	Intel Xeon E5649
PassMark - Single thread mark	1723	1214
PassMark - CPU mark	5403	9558
Geekbench 4 - Single Core	714	470
Geekbench 4 - Multi-Core	2746	2849
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	4.497	2.594
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	76.242	25.435
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.537	0.647
CompuBench 1.5 Desktop - Video Composition (Frames/s)	0.514
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.798

Compare specifications (specs)

	Intel Xeon E3-1240	Intel Xeon E5649
Essentials
Architecture codename	Sandy Bridge	Westmere EP
Launch date	April 2011	February 2011
Launch price (MSRP)	$209	$45
Place in performance rating	2372	2404
Price now	$244	$115
Processor Number	E3-1240	E5649
Series	Intel® Xeon® Processor E3 Family	Legacy Intel® Xeon® Processors
Status	Discontinued	Launched
Value for money (0-100)	9.61	17.77
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	3.30 GHz	2.53 GHz
Bus Speed	5 GT/s DMI	5.86 GT/s QPI
Die size	216 mm	239 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)	12288 KB (shared)
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	69.1°C	76.2°C
Maximum frequency	3.70 GHz	2.93 GHz
Number of cores	4	6
Number of threads	8	12
Transistor count	1160 million	1170 million
Number of QPI Links		2
VID voltage range		0.750V-1.350V
Memory
ECC memory support
Max memory channels	2	3
Maximum memory bandwidth	21 GB/s	32 GB/s
Maximum memory size	32 GB	288 GB
Supported memory types	DDR3 1066/1333	DDR3 800/1066/1333
Graphics
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Graphics interfaces
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	37.5mm x 37.5mm	42.5mm X 45mm
Sockets supported	LGA1155	FCLGA1366
Thermal Design Power (TDP)	80 Watt	80 Watt
Peripherals
Max number of PCIe lanes	20
PCI Express revision	2.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX	Intel® SSE4.2
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Physical Address Extensions (PAE)		40-bit
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)