Intel Xeon E5-2643 v3 vs Intel Xeon E3-1226 v3

Comparative analysis of Intel Xeon E5-2643 v3 and Intel Xeon E3-1226 v3 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization, Graphics, Graphics interfaces, Graphics image quality, Graphics API support. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

Intel Xeon E5-2643 v3

Intel Xeon E3-1226 v3

Differences

Reasons to consider the Intel Xeon E5-2643 v3

2 more cores, run more applications at once: 6 vs 4
8 more threads: 12 vs 4
24x more maximum memory size: 768 GB vs 32 GB
3.2x better performance in PassMark - CPU mark: 17923 vs 5524

Specifications (specs)
Number of cores	6 vs 4
Number of threads	12 vs 4
Maximum memory size	768 GB vs 32 GB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	17923 vs 5524

Reasons to consider the Intel Xeon E3-1226 v3

Around 61% lower typical power consumption: 84 Watt vs 135 Watt
Around 2% better performance in PassMark - Single thread mark: 2103 vs 2060

Specifications (specs)
Thermal Design Power (TDP)	84 Watt vs 135 Watt
Benchmarks
PassMark - Single thread mark	2103 vs 2060

Compare benchmarks

CPU 1: Intel Xeon E5-2643 v3
CPU 2: Intel Xeon E3-1226 v3

PassMark - Single thread mark

CPU 1

CPU 2

2060

2103

PassMark - CPU mark

CPU 1

CPU 2

17923

5524

Name	Intel Xeon E5-2643 v3	Intel Xeon E3-1226 v3
PassMark - Single thread mark	2060	2103
PassMark - CPU mark	17923	5524
Geekbench 4 - Single Core		881
Geekbench 4 - Multi-Core		2905
GFXBench 4.0 - Car Chase Offscreen (Frames)		1019
GFXBench 4.0 - Manhattan (Frames)		3378
GFXBench 4.0 - T-Rex (Frames)		4721
GFXBench 4.0 - Car Chase Offscreen (Fps)		1019
GFXBench 4.0 - Manhattan (Fps)		3378
GFXBench 4.0 - T-Rex (Fps)		4721

Compare specifications (specs)

	Intel Xeon E5-2643 v3	Intel Xeon E3-1226 v3
Essentials
Architecture codename	Haswell	Haswell
Launch date	Q3'14	Q2'14
Place in performance rating	1058	1059
Processor Number	E5-2643V3	E3-1226V3
Series	Intel® Xeon® Processor E5 v3 Family	Intel® Xeon® Processor E3 v3 Family
Status	Launched	Launched
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	3.40 GHz	3.30 GHz
Bus Speed	9.6 GT/s QPI	5 GT/s DMI2
Manufacturing process technology	22 nm	22 nm
Maximum core temperature	77.3°C
Maximum frequency	3.70 GHz	3.70 GHz
Number of cores	6	4
Number of QPI Links	2	0
Number of threads	12	4
VID voltage range	0.65V–1.30V
Memory
Max memory channels	4	2
Maximum memory bandwidth	68 GB/s	25.6 GB/s
Maximum memory size	768 GB	32 GB
Supported memory types	DDR4 1600/1866/2133	DDR3 and DDR3L 1333/1600 at 1.5V
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	1
Package Size	52.5mm x 45mm	37.5mm x 37.5mm
Sockets supported	FCLGA2011-3	FCLGA1150
Thermal Design Power (TDP)	135 Watt	84 Watt
Thermal Solution		PCG 2013D
Peripherals
Max number of PCIe lanes	40	16
PCI Express revision	3.0	3.0
PCIe configurations	x4, x8, x16	1x16, 2x8, 1x8/2x4
Scalability	2S	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Anti-Theft technology
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)	46-bit
Thermal Monitoring
Intel® Fast Memory Access
Intel® Stable Image Platform Program (SIPP)
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
Graphics
Execution Units		20
Graphics base frequency		350 MHz
Graphics max dynamic frequency		1.20 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory		1.7 GB
Graphics interfaces
DisplayPort
eDP
HDMI
Number of displays supported		3
VGA
Graphics image quality
Max resolution over DisplayPort		3840x2160@60Hz
Max resolution over HDMI 1.4		3840x2160@60Hz
Max resolution over VGA		2880x1800@60Hz
Graphics API support
DirectX		11.2
OpenGL		4.3