Intel Xeon E7-4807 vs Intel Xeon E5649

Comparative analysis of Intel Xeon E7-4807 and Intel Xeon E5649 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, 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).

Intel Xeon E7-4807

Intel Xeon E5649

Differences

Reasons to consider the Intel Xeon E7-4807

7.1x more maximum memory size: 2 TB vs 288 GB

Maximum memory size	2 TB vs 288 GB
Max number of CPUs in a configuration	4 vs 2

Reasons to consider the Intel Xeon E5649

Around 9% higher maximum core temperature: 76.2°C vs 70°C
Around 19% lower typical power consumption: 80 Watt vs 95 Watt
Around 68% better performance in PassMark - Single thread mark: 1214 vs 721
Around 54% better performance in PassMark - CPU mark: 9558 vs 6223

Specifications (specs)
Maximum core temperature	76.2°C vs 70°C
Thermal Design Power (TDP)	80 Watt vs 95 Watt
Benchmarks
PassMark - Single thread mark	1214 vs 721
PassMark - CPU mark	9558 vs 6223

Compare benchmarks

CPU 1: Intel Xeon E7-4807
CPU 2: Intel Xeon E5649

PassMark - Single thread mark

CPU 1

CPU 2

721

1214

PassMark - CPU mark

CPU 1

CPU 2

6223

9558

Name	Intel Xeon E7-4807	Intel Xeon E5649
PassMark - Single thread mark	721	1214
PassMark - CPU mark	6223	9558
Geekbench 4 - Single Core		470
Geekbench 4 - Multi-Core		2849
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		2.594
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		25.435
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.647

Compare specifications (specs)

	Intel Xeon E7-4807	Intel Xeon E5649
Essentials
Architecture codename	Westmere EX	Westmere EP
Launch date	Q2'11	February 2011
Place in performance rating	2431	2407
Processor Number	E7-4807	E5649
Series	Intel® Xeon® Processor E7 Family	Legacy Intel® Xeon® Processors
Status	Discontinued	Launched
Vertical segment	Server	Server
Launch price (MSRP)		$45
Price now		$115
Value for money (0-100)		17.77
Performance
64 bit support
Base frequency	1.86 GHz	2.53 GHz
Bus Speed	4.8 GT/s QPI	5.86 GT/s QPI
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	70°C	76.2°C
Number of cores	6	6
Number of threads	12	12
Die size		239 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		12288 KB (shared)
Maximum frequency		2.93 GHz
Number of QPI Links		2
Transistor count		1170 million
VID voltage range		0.750V-1.350V
Memory
Max memory channels	4	3
Maximum memory size	2 TB	288 GB
Supported memory types	DDR3 800/978/1066/1333 (Max Speed 800 MHz)	DDR3 800/1066/1333
ECC memory support
Maximum memory bandwidth		32 GB/s
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	4	2
Package Size	49.17mm x 56.47mm	42.5mm X 45mm
Sockets supported	LGA1567	FCLGA1366
Thermal Design Power (TDP)	95 Watt	80 Watt
Peripherals
Scalability	S4S
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Idle States
Intel® Demand Based Switching
Physical Address Extensions (PAE)		40-bit
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)