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).

 

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)