Intel Xeon E3-1270 vs Intel Xeon X5675

Comparative analysis of Intel Xeon E3-1270 and Intel Xeon X5675 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, 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), 3DMark Fire Strike - Physics Score.

Intel Xeon E3-1270

Intel Xeon X5675

Differences

Reasons to consider the Intel Xeon E3-1270

CPU is newer: launch date 2 month(s) later
Around 10% higher clock speed: 3.80 GHz vs 3.46 GHz
Around 19% lower typical power consumption: 80 Watt vs 95 Watt
Around 15% better performance in PassMark - Single thread mark: 1745 vs 1512
Around 26% better performance in Geekbench 4 - Single Core: 738 vs 588
4.1x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 12.187 vs 2.995
Around 36% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 79.092 vs 58.16
Around 12% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 15.794 vs 14.068

Specifications (specs)
Launch date	April 2011 vs February 2011
Maximum frequency	3.80 GHz vs 3.46 GHz
Thermal Design Power (TDP)	80 Watt vs 95 Watt
Benchmarks
PassMark - Single thread mark	1745 vs 1512
Geekbench 4 - Single Core	738 vs 588
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	12.187 vs 2.995
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	79.092 vs 58.16
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	15.794 vs 14.068

Reasons to consider the Intel Xeon X5675

2 more cores, run more applications at once: 6 vs 4
4 more threads: 12 vs 8
Around 18% higher maximum core temperature: 81.3°C vs 69.1°C
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 50% more L3 cache; more data can be stored in the L3 cache for quick access later
9x more maximum memory size: 288 GB vs 32 GB
2.2x better performance in PassMark - CPU mark: 11633 vs 5365
Around 22% better performance in Geekbench 4 - Multi-Core: 3454 vs 2830
Around 65% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.923 vs 0.558
Around 4% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 3.77 vs 3.622

Specifications (specs)
Number of cores	6 vs 4
Number of threads	12 vs 8
Maximum core temperature	81.3°C vs 69.1°C
L1 cache	64 KB (per core) vs 64 KB (per core)
L2 cache	256 KB (per core) vs 256 KB (per core)
L3 cache	12288 KB (shared) vs 8192 KB (shared)
Maximum memory size	288 GB vs 32 GB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	11633 vs 5365
Geekbench 4 - Multi-Core	3454 vs 2830
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.923 vs 0.558
CompuBench 1.5 Desktop - Video Composition (Frames/s)	3.77 vs 3.622

Compare benchmarks

CPU 1: Intel Xeon E3-1270
CPU 2: Intel Xeon X5675

PassMark - Single thread mark

CPU 1

CPU 2

1745

1512

PassMark - CPU mark

CPU 1

CPU 2

5365

11633

Geekbench 4 - Single Core

CPU 1

CPU 2

738

588

Geekbench 4 - Multi-Core

CPU 1

CPU 2

2830

3454

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

12.187

2.995

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

CPU 1

CPU 2

79.092

58.16

CompuBench 1.5 Desktop - T-Rex (Frames/s)

CPU 1

CPU 2

0.558

0.923

CompuBench 1.5 Desktop - Video Composition (Frames/s)

CPU 1

CPU 2

3.622

3.77

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

15.794

14.068

Name	Intel Xeon E3-1270	Intel Xeon X5675
PassMark - Single thread mark	1745	1512
PassMark - CPU mark	5365	11633
Geekbench 4 - Single Core	738	588
Geekbench 4 - Multi-Core	2830	3454
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	12.187	2.995
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	79.092	58.16
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.558	0.923
CompuBench 1.5 Desktop - Video Composition (Frames/s)	3.622	3.77
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	15.794	14.068
3DMark Fire Strike - Physics Score		4712

Compare specifications (specs)

	Intel Xeon E3-1270	Intel Xeon X5675
Essentials
Architecture codename	Sandy Bridge	Westmere EP
Launch date	April 2011	February 2011
Launch price (MSRP)	$369	$162
Place in performance rating	2115	2125
Price now	$317	$79.99
Processor Number	E3-1270	X5675
Series	Intel® Xeon® Processor E3 Family	Legacy Intel® Xeon® Processors
Status	Discontinued	Discontinued
Value for money (0-100)	7.66	30.70
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	3.40 GHz	3.06 GHz
Bus Speed	5 GT/s DMI	6.4 GT/s QPI
Die size	216 mm	239 mm
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	8192 KB (shared)	12288 KB (shared)
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	69.1°C	81.3°C
Maximum frequency	3.80 GHz	3.46 GHz
Number of cores	4	6
Number of threads	8	12
Transistor count	1160 million	1170 million
Number of QPI Links		2
VID voltage range		0.750V-1.350V
Memory
ECC memory support
Max memory channels	2	3
Maximum memory bandwidth	21 GB/s	32 GB/s
Maximum memory size	32 GB	288 GB
Supported memory types	DDR3 1066/1333	DDR3 800/1066/1333
Graphics
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Graphics interfaces
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	37.5mm x 37.5mm	42.5mm X 45mm
Sockets supported	LGA1155	FCLGA1366
Thermal Design Power (TDP)	80 Watt	95 Watt
Peripherals
Max number of PCIe lanes	20
PCI Express revision	2.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX	Intel® SSE4.2
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
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)