Intel Xeon L5640 vs Intel Xeon 5148

Comparative analysis of Intel Xeon L5640 and Intel Xeon 5148 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).

Intel Xeon L5640

Intel Xeon 5148

Differences

Reasons to consider the Intel Xeon L5640

CPU is newer: launch date 3 year(s) 8 month(s) later
4 more cores, run more applications at once: 6 vs 2
Around 20% higher clock speed: 2.80 GHz vs 2.33 GHz
Around 20% higher maximum core temperature: 69.4°C vs 58°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 65 nm
Around 33% better performance in PassMark - Single thread mark: 1155 vs 868
9.3x better performance in PassMark - CPU mark: 8525 vs 912

Specifications (specs)
Launch date	March 2010 vs June 2006
Number of cores	6 vs 2
Maximum frequency	2.80 GHz vs 2.33 GHz
Maximum core temperature	69.4°C vs 58°C
Manufacturing process technology	32 nm vs 65 nm
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - Single thread mark	1155 vs 868
PassMark - CPU mark	8525 vs 912

Reasons to consider the Intel Xeon 5148

2.7x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 50% lower typical power consumption: 40 Watt vs 60 Watt

L2 cache	4096 KB vs 256 KB (per core)
Thermal Design Power (TDP)	40 Watt vs 60 Watt

Compare benchmarks

CPU 1: Intel Xeon L5640
CPU 2: Intel Xeon 5148

PassMark - Single thread mark

CPU 1

CPU 2

1155

868

PassMark - CPU mark

CPU 1

CPU 2

8525

912

Name	Intel Xeon L5640	Intel Xeon 5148
PassMark - Single thread mark	1155	868
PassMark - CPU mark	8525	912
Geekbench 4 - Single Core	455
Geekbench 4 - Multi-Core	2407
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	2.022
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	52.531
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.561
CompuBench 1.5 Desktop - Video Composition (Frames/s)	3.387

Compare specifications (specs)

	Intel Xeon L5640	Intel Xeon 5148
Essentials
Architecture codename	Westmere EP	Woodcrest
Launch date	March 2010	June 2006
Launch price (MSRP)	$200	$9
Place in performance rating	2479	2467
Price now	$34.75	$13.13
Processor Number	L5640	5148
Series	Legacy Intel® Xeon® Processors	Legacy Intel® Xeon® Processors
Status	Discontinued	Launched
Value for money (0-100)	54.30	35.65
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.26 GHz	2.33 GHz
Bus Speed	5.86 GT/s QPI	1333 MHz FSB
Die size	239 mm	143 mm2
L1 cache	64 KB (per core)
L2 cache	256 KB (per core)	4096 KB
L3 cache	12288 KB (shared)
Manufacturing process technology	32 nm	65 nm
Maximum core temperature	69.4°C	58°C
Maximum frequency	2.80 GHz	2.33 GHz
Number of cores	6	2
Number of QPI Links	2
Number of threads	12
Transistor count	1170 million	291 million
VID voltage range	0.750V-1.350V	1.150V-1.250V
Memory
ECC memory support
Max memory channels	3
Maximum memory bandwidth	32 GB/s
Maximum memory size	288 GB
Supported memory types	DDR3 800/1066/1333	DDR2
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	1
Package Size	42.5mm X 45mm	37.5mm x 37.5mm
Sockets supported	FCLGA1366	LGA771
Thermal Design Power (TDP)	60 Watt	40 Watt
Scenario Design Power (SDP)		0 W
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 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	40-bit	32-bit
Thermal Monitoring
FSB parity
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)