Intel Xeon W3670 vs Intel Xeon E5645

Comparative analysis of Intel Xeon W3670 and Intel Xeon E5645 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, 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 W3670

Intel Xeon E5645

Differences

Reasons to consider the Intel Xeon W3670

CPU is newer: launch date 5 month(s) later
Around 30% higher clock speed: 3.46 GHz vs 2.67 GHz
Around 27% better performance in PassMark - Single thread mark: 1487 vs 1175
Around 27% better performance in Geekbench 4 - Single Core: 561 vs 442
Around 10% better performance in Geekbench 4 - Multi-Core: 2994 vs 2731

Specifications (specs)
Launch date	August 2010 vs March 2010
Maximum frequency	3.46 GHz vs 2.67 GHz
Benchmarks
PassMark - Single thread mark	1487 vs 1175
Geekbench 4 - Single Core	561 vs 442
Geekbench 4 - Multi-Core	2994 vs 2731

Reasons to consider the Intel Xeon E5645

Around 12% higher maximum core temperature: 76.2°C vs 67.9°C
12x more maximum memory size: 288 GB vs 24 GB
Around 63% lower typical power consumption: 80 Watt vs 130 Watt
Around 44% better performance in PassMark - CPU mark: 9206 vs 6413
Around 41% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 2.308 vs 1.639
Around 17% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 49.224 vs 42.154
Around 42% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.623 vs 0.439
Around 44% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 3.664 vs 2.551
Around 53% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 11.094 vs 7.228

Specifications (specs)
Maximum core temperature	76.2°C vs 67.9°C
Maximum memory size	288 GB vs 24 GB
Max number of CPUs in a configuration	2 vs 1
Thermal Design Power (TDP)	80 Watt vs 130 Watt
Benchmarks
PassMark - CPU mark	9206 vs 6413
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	2.308 vs 1.639
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	49.224 vs 42.154
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.623 vs 0.439
CompuBench 1.5 Desktop - Video Composition (Frames/s)	3.664 vs 2.551
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	11.094 vs 7.228

Compare benchmarks

CPU 1: Intel Xeon W3670
CPU 2: Intel Xeon E5645

PassMark - Single thread mark

CPU 1

CPU 2

1487

1175

PassMark - CPU mark

CPU 1

CPU 2

6413

9206

Geekbench 4 - Single Core

CPU 1

CPU 2

561

442

Geekbench 4 - Multi-Core

CPU 1

CPU 2

2994

2731

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

1.639

2.308

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

CPU 1

CPU 2

42.154

49.224

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

CPU 1

CPU 2

0.439

0.623

CompuBench 1.5 Desktop - Video Composition (Frames/s)

CPU 1

CPU 2

2.551

3.664

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

7.228

11.094

Name	Intel Xeon W3670	Intel Xeon E5645
PassMark - Single thread mark	1487	1175
PassMark - CPU mark	6413	9206
Geekbench 4 - Single Core	561	442
Geekbench 4 - Multi-Core	2994	2731
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	1.639	2.308
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	42.154	49.224
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.439	0.623
CompuBench 1.5 Desktop - Video Composition (Frames/s)	2.551	3.664
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	7.228	11.094

Compare specifications (specs)

	Intel Xeon W3670	Intel Xeon E5645
Essentials
Architecture codename	Westmere EP	Westmere EP
Launch date	August 2010	March 2010
Launch price (MSRP)	$295	$294
Place in performance rating	2544	2512
Price now	$565	$239.95
Processor Number	W3670	E5645
Series	Legacy Intel® Xeon® Processors	Legacy Intel® Xeon® Processors
Status	Discontinued	Launched
Value for money (0-100)	4.25	7.96
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	3.20 GHz	2.40 GHz
Bus Speed	4.8 GT/s QPI	5.86 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	67.9°C	76.2°C
Maximum frequency	3.46 GHz	2.67 GHz
Number of cores	6	6
Number of QPI Links	1	2
Number of threads	12	12
Transistor count	1170 million	1170 million
VID voltage range	0.800V-1.375V	0.750V-1.350V
Memory
ECC memory support
Max memory channels	3	3
Maximum memory bandwidth	25.6 GB/s	32 GB/s
Maximum memory size	24 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	1	2
Package Size	42.5mm X 45mm	42.5mm X 45mm
Sockets supported	FCLGA1366	FCLGA1366
Thermal Design Power (TDP)	130 Watt	80 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)	36-bit	40-bit
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® VT-x with Extended Page Tables (EPT)
Intel® Virtualization Technology for Directed I/O (VT-d)