Intel Xeon E7-4870 vs Intel Xeon E5-2643

Comparative analysis of Intel Xeon E7-4870 and Intel Xeon E5-2643 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.

Intel Xeon E7-4870

Intel Xeon E5-2643

Differences

Reasons to consider the Intel Xeon E7-4870

6 more cores, run more applications at once: 10 vs 4
12 more threads: 20 vs 8
5.3x more maximum memory size: 2 TB vs 384 GB
Around 22% better performance in PassMark - CPU mark: 11939 vs 9748

Specifications (specs)
Number of cores	10 vs 4
Number of threads	20 vs 8
Maximum memory size	2 TB vs 384 GB
Max number of CPUs in a configuration	4 vs 2
Benchmarks
PassMark - CPU mark	11939 vs 9748

Reasons to consider the Intel Xeon E5-2643

Around 25% higher clock speed: 3.50 GHz vs 2.80 GHz
Around 6% higher maximum core temperature: 73°C vs 69°C
Around 52% better performance in PassMark - Single thread mark: 1598 vs 1054

Specifications (specs)
Maximum frequency	3.50 GHz vs 2.80 GHz
Maximum core temperature	73°C vs 69°C
Benchmarks
PassMark - Single thread mark	1598 vs 1054

Compare benchmarks

CPU 1: Intel Xeon E7-4870
CPU 2: Intel Xeon E5-2643

PassMark - Single thread mark

CPU 1

CPU 2

1054

1598

PassMark - CPU mark

CPU 1

CPU 2

11939

9748

Name	Intel Xeon E7-4870	Intel Xeon E5-2643
PassMark - Single thread mark	1054	1598
PassMark - CPU mark	11939	9748
Geekbench 4 - Single Core		638
Geekbench 4 - Multi-Core		2761

Compare specifications (specs)

	Intel Xeon E7-4870	Intel Xeon E5-2643
Essentials
Architecture codename	Westmere EX	Sandy Bridge EP
Launch date	Q2'11	March 2012
Place in performance rating	1771	1782
Processor Number	E7-4870	E5-2643
Series	Intel® Xeon® Processor E7 Family	Intel® Xeon® Processor E5 Family
Status	Discontinued	Discontinued
Vertical segment	Server	Server
Launch price (MSRP)		$218
Price now		$2,664
Value for money (0-100)		0.93
Performance
64 bit support
Base frequency	2.40 GHz	3.30 GHz
Bus Speed	6.4 GT/s QPI	8 GT/s QPI
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	69°C	73°C
Maximum frequency	2.80 GHz	3.50 GHz
Number of cores	10	4
Number of threads	20	8
Die size		294 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		10240 KB (shared)
Number of QPI Links		2
Transistor count		1270 million
VID voltage range		0.60V-1.35V
Memory
Max memory channels	4	4
Maximum memory size	2 TB	384 GB
Supported memory types	DDR3 800/978/1066/1333 (Max Speed 1066 MHz)	DDR3 800/1066/1333/1600
ECC memory support
Maximum memory bandwidth		51.2 GB/s
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	4	2
Package Size	49.17mm x 56.47mm	52.5mm x 45.0mm
Sockets supported	LGA1567	FCLGA2011
Thermal Design Power (TDP)	130 Watt	130 Watt
Peripherals
Scalability	S4S	2S Only
Max number of PCIe lanes		40
PCI Express revision		3.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Intel® Identity Protection technology
Advanced Technologies
Enhanced Intel SpeedStep® technology
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® AVX
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Idle States
Intel® Advanced Vector Extensions (AVX)
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® vPro™ Platform Eligibility
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)