Intel Xeon L5640 vs Intel Xeon X5677

Comparative analysis of Intel Xeon L5640 and Intel Xeon X5677 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 L5640

Intel Xeon X5677

Differences

Reasons to consider the Intel Xeon L5640

2 more cores, run more applications at once: 6 vs 4
4 more threads: 12 vs 8
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
2.2x lower typical power consumption: 60 Watt vs 130 Watt
Around 58% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 2.022 vs 1.277
Around 47% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.561 vs 0.382
Around 78% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 3.387 vs 1.899

Specifications (specs)
Number of cores	6 vs 4
Number of threads	12 vs 8
L1 cache	64 KB (per core) vs 64 KB (per core)
L2 cache	256 KB (per core) vs 256 KB (per core)
Thermal Design Power (TDP)	60 Watt vs 130 Watt
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	2.022 vs 1.277
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.561 vs 0.382
CompuBench 1.5 Desktop - Video Composition (Frames/s)	3.387 vs 1.899

Reasons to consider the Intel Xeon X5677

Around 33% higher clock speed: 3.73 GHz vs 2.80 GHz
Around 16% higher maximum core temperature: 80.4°C vs 69.4°C
Around 41% better performance in PassMark - Single thread mark: 1623 vs 1155
Around 5% better performance in PassMark - CPU mark: 8971 vs 8525
Around 41% better performance in Geekbench 4 - Single Core: 641 vs 455
Around 5% better performance in Geekbench 4 - Multi-Core: 2536 vs 2407
Around 20% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 62.935 vs 52.531

Specifications (specs)
Maximum frequency	3.73 GHz vs 2.80 GHz
Maximum core temperature	80.4°C vs 69.4°C
Benchmarks
PassMark - Single thread mark	1623 vs 1155
PassMark - CPU mark	8971 vs 8525
Geekbench 4 - Single Core	641 vs 455
Geekbench 4 - Multi-Core	2536 vs 2407
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	62.935 vs 52.531

Compare benchmarks

CPU 1: Intel Xeon L5640
CPU 2: Intel Xeon X5677

PassMark - Single thread mark

CPU 1

CPU 2

1155

1623

PassMark - CPU mark

CPU 1

CPU 2

8525

8971

Geekbench 4 - Single Core

CPU 1

CPU 2

455

641

Geekbench 4 - Multi-Core

CPU 1

CPU 2

2407

2536

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

2.022

1.277

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

CPU 1

CPU 2

52.531

62.935

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

CPU 1

CPU 2

0.561

0.382

CompuBench 1.5 Desktop - Video Composition (Frames/s)

CPU 1

CPU 2

3.387

1.899

Name	Intel Xeon L5640	Intel Xeon X5677
PassMark - Single thread mark	1155	1623
PassMark - CPU mark	8525	8971
Geekbench 4 - Single Core	455	641
Geekbench 4 - Multi-Core	2407	2536
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	2.022	1.277
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	52.531	62.935
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.561	0.382
CompuBench 1.5 Desktop - Video Composition (Frames/s)	3.387	1.899
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		5.361

Compare specifications (specs)

	Intel Xeon L5640	Intel Xeon X5677
Essentials
Architecture codename	Westmere EP	Westmere EP
Launch date	March 2010	March 2010
Launch price (MSRP)	$200	$350
Place in performance rating	2479	2464
Price now	$34.75	$105
Processor Number	L5640	X5677
Series	Legacy Intel® Xeon® Processors	Legacy Intel® Xeon® Processors
Status	Discontinued	Discontinued
Value for money (0-100)	54.30	19.64
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.26 GHz	3.46 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	69.4°C	80.4°C
Maximum frequency	2.80 GHz	3.73 GHz
Number of cores	6	4
Number of QPI Links	2	2
Number of threads	12	8
Transistor count	1170 million	1170 million
VID voltage range	0.750V-1.350V	0.750V-1.350V
Memory
ECC memory support
Max memory channels	3	3
Maximum memory bandwidth	32 GB/s	32 GB/s
Maximum memory size	288 GB	288 GB
Supported memory types	DDR3 800/1066/1333	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)	60 Watt	130 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)