Intel Xeon E3-1275 v6 vs Intel Core i7-5820K

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Xeon E3-1275 v6 or Intel Xeon E3-1275 v6 – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Xeon E3-1275 v6 features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q1/2017 and belongs to the 6 generation of the Intel Xeon E3 series.
To use the Intel Xeon E3-1275 v6, you'll need a motherboard with a LGA 1151 socket.
The Intel Core i7-5820K features 6 processor cores and has the capability to manage 12 threads concurrently.
It was released in Q3/2014 and belongs to the 5 generation of the Intel Core i7 Extreme Edition series.
To use the Intel Core i7-5820K, you'll need a motherboard with a LGA 2011-3 socket.
Desktop / Server Segment Desktop / Server
Intel Xeon E3-1275 v6 Name Intel Core i7-5820K
Intel Xeon E3 Family Intel Core i7 Extreme Edition
6 Generation 5
Intel Xeon E3 v6 Group Intel Core i 5000X
 
 

CPU Cores and Base Frequency

The Intel Xeon E3-1275 v6 has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Xeon E3-1275 v6 is 3.8 GHz
and turbo frequency for one core is 4.2 GHz.
The Intel Core i7-5820K has 6 CPU cores and can calculate 12 threads in parallel.
The clock frequency of the Intel Core i7-5820K is 3.3 GHz
and turbo frequency for one core is 3.6 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
4.2 GHz Turbo Frequency (1 core) 3.6 GHz
No Overclocking Yes
normal Core architecture normal
3.8 GHz Frequency 3.3 GHz
8 Threads 12
4.0 GHz Turbo Frequency (all cores) 3.4 GHz
Yes Hyperthreading Yes
4 CPU Cores 6
4x Cores 6x
 
 

Internal Graphics

The Intel Xeon E3-1275 v6 has integrated graphics, called iGPU for short.
Specifically, the Intel Xeon E3-1275 v6 uses the Intel HD Graphics P630, which has 192 texture shaders
and 24 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i7-5820K does not have integrated graphics.
0.35 GHz GPU frequency --
Q2/2016 Release date --
12 Direct X --
Intel HD Graphics P630 GPU name
14 nm Technology --
-- Max. displays --
192 Shaders --
64.0 GB Max. GPU Memory 0 bytes
24 Execution units --
9.5 Generation --
1.15 GHz GPU (Turbo) --
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
Decode / Encode AVC --
Decode VC-1 --
Decode / Encode VP9 --
Decode / Encode h265 / HEVC (10 bit) --
Decode / Encode h264 --
Decode / Encode VP8 --
Decode / Encode h265 / HEVC (8 bit) --
Decode / Encode JPEG --
No AV1 --
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 38.4 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 64.0 GB distributed across 4 memory channels. It offers a peak memory bandwidth of 68.2 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
2 Memory channels 4
64.0 GB Max. Memory 64.0 GB
pci PCIe pci
Yes AES-NI Yes
Yes ECC No
38.4 GB/s Bandwidth 68.2 GB/s
DDR4-2400 Memory type DDR4-2133
 
 

Thermal Management

The processor has a thermal design power (TDP) of 73 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 140 W watts.
-- Tjunction max --
73 W TDP (PL1 / PBP) 140 W
 
 

Technical details

The Intel Xeon E3-1275 v6 is manufactured using a 14 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 8.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-5820K is manufactured using a 22 nm process.
In total, this processor boasts a generous 15.0 MB cache.
Q1/2017 Release date Q3/2014
-- Part Number --
0 bytes L2-Cache 0 bytes
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
Monolithic Chip design Monolithic
Kaby Lake S Architecture Haswell E
14 nm Technology 22 nm
LGA 1151 Socket LGA 2011-3
Windows 10, Linux Operating systems Windows 10, Linux
-- Release price 499 $
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
8.0 MB L3-Cache 15.0 MB
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
23052
23052
Intel Xeon E3-1275 v6
4C 8T @ 3.8 GHz
16996
16996

Geekbench 6 (Multi-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
5763
5763
Intel Xeon E3-1275 v6
4C 8T @ 3.8 GHz
5268
5268

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
5537
5537
Intel Xeon E3-1275 v6
4C 8T @ 3.8 GHz
4725
4725

Geekbench 3, 64bit (Single-Core)

Intel Xeon E3-1275 v6
4C 8T @ 3.8 GHz
4785
4785
Intel Core i7-5820K
6C 12T @ 3.3 GHz
3740
3740

Geekbench 6 (Single-Core)

Intel Xeon E3-1275 v6
4C 8T @ 3.8 GHz
1542
1542
Intel Core i7-5820K
6C 12T @ 3.3 GHz
1086
1086

Cinebench R15 (Multi-Core)

Intel Core i7-5820K
6C 12T @ 3.3 GHz
1085
1085
Intel Xeon E3-1275 v6
4C 8T @ 3.8 GHz
905
905