Intel Xeon E7-8880 v2 vs Intel Core i7-975

Comparative analysis of Intel Xeon E7-8880 v2 and Intel Core i7-975 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 E7-8880 v2

Intel Core i7-975

Differences

Reasons to consider the Intel Xeon E7-8880 v2

11 more cores, run more applications at once: 15 vs 4
22 more threads: 30 vs 8
Around 8% higher maximum core temperature: 73°C vs 67.9°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 45 nm
64x more maximum memory size: 1.5 TB vs 24 GB
7.4x better performance in PassMark - CPU mark: 25966 vs 3510

Specifications (specs)
Number of cores	15 vs 4
Number of threads	30 vs 8
Maximum core temperature	73°C vs 67.9°C
Manufacturing process technology	22 nm vs 45 nm
Maximum memory size	1.5 TB vs 24 GB
Max number of CPUs in a configuration	8 vs 1
Benchmarks
PassMark - CPU mark	25966 vs 3510

Reasons to consider the Intel Core i7-975

Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 16% higher clock speed: 3.60 GHz vs 3.10 GHz
Around 14% better performance in PassMark - Single thread mark: 1501 vs 1316

Specifications (specs)
Unlocked	Unlocked vs Locked
Maximum frequency	3.60 GHz vs 3.10 GHz
Benchmarks
PassMark - Single thread mark	1501 vs 1316

Compare benchmarks

CPU 1: Intel Xeon E7-8880 v2
CPU 2: Intel Core i7-975

PassMark - Single thread mark

CPU 1

CPU 2

1316

1501

PassMark - CPU mark

CPU 1

CPU 2

25966

3510

Name	Intel Xeon E7-8880 v2	Intel Core i7-975
PassMark - Single thread mark	1316	1501
PassMark - CPU mark	25966	3510
Geekbench 4 - Single Core		606
Geekbench 4 - Multi-Core		2380
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		1.084
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		63.217
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.376
CompuBench 1.5 Desktop - Video Composition (Frames/s)		1.858
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		5.196

Compare specifications (specs)

	Intel Xeon E7-8880 v2	Intel Core i7-975
Essentials
Architecture codename	Ivy Bridge	Bloomfield
Launch date	Q1'14	June 2009
Place in performance rating	1356	2599
Processor Number	E7-8880V2	i7-975
Series	Intel® Xeon® Processor E7 v2 Family	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Server	Desktop
Launch price (MSRP)		$476
Price now		$179.99
Value for money (0-100)		10.04
Performance
64 bit support
Base frequency	2.50 GHz	3.33 GHz
Bus Speed	8 GT/s QPI	6.4 GT/s QPI
Manufacturing process technology	22 nm	45 nm
Maximum core temperature	73°C	67.9°C
Maximum frequency	3.10 GHz	3.60 GHz
Number of cores	15	4
Number of QPI Links	3	1
Number of threads	30	8
Die size		263 mm2
Front-side bus (FSB)		1333 MHz
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		8192 KB (shared)
Transistor count		731 million
Unlocked
VID voltage range		0.800V-1.375V
Memory
Max memory channels	4	3
Maximum memory bandwidth	85 GB/s	25.6 GB/s
Maximum memory size	1.5 TB	24 GB
Supported memory types	DDR3 1066/1333/1600	DDR3 800/1066
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	8	1
Package Size	52mm x 45mm	42.5mm x 45.0mm
Sockets supported	FCLGA2011	FCLGA1366
Thermal Design Power (TDP)	130 Watt	130 Watt
Peripherals
Max number of PCIe lanes	32
PCI Express revision	3.0
PCIe configurations	x4, x8, x16
Scalability	S8S
Security & Reliability
Execute Disable Bit (EDB)
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX	Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Instruction Replay Technology
Intel® TSX-NI
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	46-bit	36-bit
Thermal Monitoring
Intel® Demand Based Switching
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)