Intel Xeon E5-2665 vs AMD Opteron 6276

Comparative analysis of Intel Xeon E5-2665 and AMD Opteron 6276 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), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

Intel Xeon E5-2665

AMD Opteron 6276

Differences

Reasons to consider the Intel Xeon E5-2665

CPU is newer: launch date 3 month(s) later
Around 19% higher maximum core temperature: 81.8°C vs 69°C
Around 25% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 48% better performance in PassMark - Single thread mark: 1355 vs 916
Around 54% better performance in PassMark - CPU mark: 14117 vs 9168

Specifications (specs)
Launch date	March 2012 vs November 2011
Maximum core temperature	81.8°C vs 69°C
L3 cache	20480 KB (shared) vs 16 MB
Benchmarks
PassMark - Single thread mark	1355 vs 916
PassMark - CPU mark	14117 vs 9168

Reasons to consider the AMD Opteron 6276

8 more cores, run more applications at once: 16 vs 8
Around 3% higher clock speed: 3.2 GHz vs 3.10 GHz
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
8x more L2 cache, more data can be stored in the L2 cache for quick access later
2.9x better performance in Geekbench 4 - Single Core: 1688 vs 573
Around 81% better performance in Geekbench 4 - Multi-Core: 8409 vs 4647

Specifications (specs)
Number of cores	16 vs 8
Maximum frequency	3.2 GHz vs 3.10 GHz
L1 cache	768 KB vs 64 KB (per core)
L2 cache	16 MB vs 256 KB (per core)
Max number of CPUs in a configuration	4 vs 2
Benchmarks
Geekbench 4 - Single Core	1688 vs 573
Geekbench 4 - Multi-Core	8409 vs 4647

Compare benchmarks

CPU 1: Intel Xeon E5-2665
CPU 2: AMD Opteron 6276

PassMark - Single thread mark

CPU 1

CPU 2

1355

916

PassMark - CPU mark

CPU 1

CPU 2

14117

9168

Geekbench 4 - Single Core

CPU 1

CPU 2

573

1688

Geekbench 4 - Multi-Core

CPU 1

CPU 2

4647

8409

Name	Intel Xeon E5-2665	AMD Opteron 6276
PassMark - Single thread mark	1355	916
PassMark - CPU mark	14117	9168
Geekbench 4 - Single Core	573	1688
Geekbench 4 - Multi-Core	4647	8409
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		15.75
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		39.164
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.93
CompuBench 1.5 Desktop - Video Composition (Frames/s)		2.806
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		18.974

Compare specifications (specs)

	Intel Xeon E5-2665	AMD Opteron 6276
Essentials
Architecture codename	Sandy Bridge EP	Interlagos
Launch date	March 2012	November 2011
Launch price (MSRP)	$142	$119
Place in performance rating	1816	1828
Price now	$141.50	$79.99
Processor Number	E5-2665
Series	Intel® Xeon® Processor E5 Family	AMD Opteron 6200 Series Processor
Status	Discontinued
Value for money (0-100)	24.14	33.18
Vertical segment	Server	Server
Family		AMD Opteron
OPN Tray		OS6276WKTGGGU
Performance
64 bit support
Base frequency	2.40 GHz	2.3 GHz
Bus Speed	8 GT/s QPI
Die size	435 mm	316 mm
L1 cache	64 KB (per core)	768 KB
L2 cache	256 KB (per core)	16 MB
L3 cache	20480 KB (shared)	16 MB
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	81.8°C	69°C
Maximum frequency	3.10 GHz	3.2 GHz
Number of cores	8	16
Number of QPI Links	2
Number of threads	16	16
Transistor count	2270 million	2400 million
VID voltage range	0.60V-1.35V
Unlocked
Memory
ECC memory support
Max memory channels	4
Maximum memory bandwidth	51.2 GB/s
Maximum memory size	384 GB
Supported memory types	DDR3 800/1066/1333/1600	DDR3
Supported memory frequency		2000 MHz
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	4
Package Size	52.5mm x 45.0mm
Sockets supported	FCLGA2011	G34
Thermal Design Power (TDP)	115 Watt	115 Watt
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)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Fused Multiply-Add (FMA)
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
AMD Virtualization (AMD-V™)