Intel Xeon E5640 vs Intel Xeon X5670

Comparative analysis of Intel Xeon E5640 and Intel Xeon X5670 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, 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, 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 E5640

Intel Xeon X5670

Differences

Reasons to consider the Intel Xeon E5640

Around 19% lower typical power consumption: 80 Watt vs 95 Watt

Thermal Design Power (TDP)	80 Watt vs 95 Watt

Reasons to consider the Intel Xeon X5670

2 more cores, run more applications at once: 6 vs 4
4 more threads: 12 vs 8
Around 14% higher clock speed: 3.33 GHz vs 2.93 GHz
Around 5% higher maximum core temperature: 81.3°C vs 77.6°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 13% better performance in PassMark - Single thread mark: 1415 vs 1252
Around 46% better performance in PassMark - CPU mark: 10890 vs 7455
Around 18% better performance in Geekbench 4 - Single Core: 564 vs 476
Around 51% better performance in Geekbench 4 - Multi-Core: 3291 vs 2185

Specifications (specs)
Number of cores	6 vs 4
Number of threads	12 vs 8
Maximum frequency	3.33 GHz vs 2.93 GHz
Maximum core temperature	81.3°C vs 77.6°C
L1 cache	64 KB (per core) vs 64 KB (per core)
L2 cache	256 KB (per core) vs 256 KB (per core)
Benchmarks
PassMark - Single thread mark	1415 vs 1252
PassMark - CPU mark	10890 vs 7455
Geekbench 4 - Single Core	564 vs 476
Geekbench 4 - Multi-Core	3291 vs 2185

Compare benchmarks

CPU 1: Intel Xeon E5640
CPU 2: Intel Xeon X5670

PassMark - Single thread mark

CPU 1

CPU 2

1252

1415

PassMark - CPU mark

CPU 1

CPU 2

7455

10890

Geekbench 4 - Single Core

CPU 1

CPU 2

476

564

Geekbench 4 - Multi-Core

CPU 1

CPU 2

2185

3291

Name	Intel Xeon E5640	Intel Xeon X5670
PassMark - Single thread mark	1252	1415
PassMark - CPU mark	7455	10890
Geekbench 4 - Single Core	476	564
Geekbench 4 - Multi-Core	2185	3291
3DMark Fire Strike - Physics Score		4238
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		2.874
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		56.955
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.811
CompuBench 1.5 Desktop - Video Composition (Frames/s)		3.679
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		13.469

Compare specifications (specs)

	Intel Xeon E5640	Intel Xeon X5670
Essentials
Architecture codename	Westmere EP	Westmere EP
Launch date	March 2010	March 2010
Launch price (MSRP)	$49	$67
Place in performance rating	2238	2214
Price now	$59.49	$66.59
Processor Number	E5640	X5670
Series	Legacy Intel® Xeon® Processors	Legacy Intel® Xeon® Processors
Status	Discontinued	Discontinued
Value for money (0-100)	26.06	35.08
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.66 GHz	2.93 GHz
Bus Speed	5.86 GT/s QPI	6.4 GT/s QPI
Die size	239 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	12288 KB (shared)	12288 KB (shared)
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	77.6°C	81.3°C
Maximum frequency	2.93 GHz	3.33 GHz
Number of cores	4	6
Number of QPI Links	2	2
Number of threads	8	12
Transistor count	1170 million	1170 million
VID voltage range	0.750V-1.350V	0.750V-1.350V
Front-side bus (FSB)		6400 MHz
Memory
ECC memory support
Max memory channels	3	3
Maximum memory bandwidth	25.6 GB/s	32 GB/s
Maximum memory size	288 GB	288 GB
Supported memory types	DDR3 800/1066	DDR3 800/1066/1333
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	2
Package Size	42.5mm X 45mm	42.5mm X 45mm
Sockets supported	FCLGA1366	FCLGA1366
Thermal Design Power (TDP)	80 Watt	95 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.2	Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	40-bit	40-bit
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)