AMD Opteron 6278 vs Intel Xeon E5-2643

Comparative analysis of AMD Opteron 6278 and Intel Xeon E5-2643 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Advanced Technologies, Virtualization, Peripherals, Security & Reliability. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

AMD Opteron 6278

Intel Xeon E5-2643

Differences

Reasons to consider the AMD Opteron 6278

CPU is newer: launch date 2 month(s) later
12 more cores, run more applications at once: 16 vs 4
8 more threads: 16 vs 8
3x more L1 cache, more data can be stored in the L1 cache for quick access later
16x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 60% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 13% lower typical power consumption: 115 Watt vs 130 Watt
Around 41% better performance in PassMark - CPU mark: 13733 vs 9774

Specifications (specs)
Launch date	May 2012 vs March 2012
Number of cores	16 vs 4
Number of threads	16 vs 8
L1 cache	768 KB vs 64 KB (per core)
L2 cache	16 MB vs 256 KB (per core)
L3 cache	16 MB vs 10240 KB (shared)
Max number of CPUs in a configuration	4 vs 2
Thermal Design Power (TDP)	115 Watt vs 130 Watt
Benchmarks
PassMark - CPU mark	13733 vs 9774

Reasons to consider the Intel Xeon E5-2643

Around 6% higher clock speed: 3.50 GHz vs 3.3 GHz
Around 6% higher maximum core temperature: 73°C vs 69°C
Around 59% better performance in PassMark - Single thread mark: 1600 vs 1007

Specifications (specs)
Maximum frequency	3.50 GHz vs 3.3 GHz
Maximum core temperature	73°C vs 69°C
Benchmarks
PassMark - Single thread mark	1600 vs 1007

Compare benchmarks

CPU 1: AMD Opteron 6278
CPU 2: Intel Xeon E5-2643

PassMark - Single thread mark

CPU 1

CPU 2

1007

1600

PassMark - CPU mark

CPU 1

CPU 2

13733

9774

Name	AMD Opteron 6278	Intel Xeon E5-2643
PassMark - Single thread mark	1007	1600
PassMark - CPU mark	13733	9774
Geekbench 4 - Single Core		638
Geekbench 4 - Multi-Core		2761

Compare specifications (specs)

	AMD Opteron 6278	Intel Xeon E5-2643
Essentials
Architecture codename	Interlagos	Sandy Bridge EP
Family	AMD Opteron
Launch date	May 2012	March 2012
OPN Tray	OS6278WKTGGGU
Place in performance rating	1857	1858
Series	AMD Opteron 6200 Series Processor	Intel® Xeon® Processor E5 Family
Vertical segment	Server	Server
Launch price (MSRP)		$218
Price now		$2,664
Processor Number		E5-2643
Status		Discontinued
Value for money (0-100)		0.93
Performance
64 bit support
Base frequency	2.4 GHz	3.30 GHz
Die size	316 mm	294 mm
L1 cache	768 KB	64 KB (per core)
L2 cache	16 MB	256 KB (per core)
L3 cache	16 MB	10240 KB (shared)
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	69°C	73°C
Maximum frequency	3.3 GHz	3.50 GHz
Number of cores	16	4
Number of threads	16	8
Transistor count	2400 million	1270 million
Unlocked
Bus Speed		8 GT/s QPI
Number of QPI Links		2
VID voltage range		0.60V-1.35V
Memory
Supported memory frequency	2000 MHz
Supported memory types	DDR3	DDR3 800/1066/1333/1600
ECC memory support
Max memory channels		4
Maximum memory bandwidth		51.2 GB/s
Maximum memory size		384 GB
Compatibility
Max number of CPUs in a configuration	4	2
Sockets supported	G34	FCLGA2011
Thermal Design Power (TDP)	115 Watt	130 Watt
Low Halogen Options Available
Package Size		52.5mm x 45.0mm
Advanced Technologies
Fused Multiply-Add (FMA)
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions		Intel® AVX
Intel 64
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Virtualization
AMD Virtualization (AMD-V™)
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
Peripherals
Max number of PCIe lanes		40
PCI Express revision		3.0
Scalability		2S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)