Intel Xeon E5-2643 v4 vs Intel Core i5-5257U

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CPU comparison with benchmarks


Intel Xeon E5-2643 v4 CPU1 vs CPU2 Intel Core i5-5257U
Intel Xeon E5-2643 v4 Intel Core i5-5257U

CPU comparison

In this CPU comparison, we compare the Intel Xeon E5-2643 v4 and the Intel Core i5-5257U and use benchmarks to check which processor is faster.

We compare the Intel Xeon E5-2643 v4 6 core processor released in Q1/2016 with the Intel Core i5-5257U which has 2 CPU cores and was introduced in Q1/2015.
Intel Xeon E5 (71) Family Intel Core i5 (331)
Intel Xeon E5 v4 (24) CPU group Intel Core i 5000U (16)
6 Generation 5
Broadwell E Architecture Broadwell U
Desktop / Server Segment Mobile
Intel Xeon E5-2643 v3 Predecessor Intel Core i5-4258U
-- Successor --

CPU Cores and Base Frequency

The Intel Xeon E5-2643 v4 is a 6 core processor with a clock frequency of 3.40 GHz (3.70 GHz). The processor can compute 12 threads at the same time. The Intel Core i5-5257U clocks with 2.70 GHz (3.10 GHz), has 2 CPU cores and can calculate 4 threads in parallel.

Intel Xeon E5-2643 v4 Characteristic Intel Core i5-5257U
6 Cores 2
12 Threads 4
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
3.40 GHz Frequency 2.70 GHz
3.70 GHz Turbo Frequency (1 Core) 3.10 GHz
3.60 GHz Turbo Frequency (All Cores) 3.10 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Xeon E5-2643 v4 Characteristic Intel Core i5-5257U
-- AI hardware --
-- AI specifications --

Internal Graphics

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

no iGPU GPU Intel Iris Graphics 6100
GPU frequency 0.30 GHz
-- GPU (Turbo) 1.05 GHz
-- GPU Generation 8
Technology 14 nm
Max. displays 3
-- Compute units 48
-- Shader 384
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 16 GB
-- DirectX Version 11.2

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.

no iGPU GPU Intel Iris Graphics 6100
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 Decode / Encode
No Codec VP9 No
No Codec VP8 Decode
No Codec AV1 No
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode

Memory & PCIe

Up to 1536 GB of memory in a maximum of 4 memory channels is supported by the Intel Xeon E5-2643 v4, while the Intel Core i5-5257U supports a maximum of 16 GB of memory with a maximum memory bandwidth of 29.9 GB/s enabled.

Intel Xeon E5-2643 v4 Characteristic Intel Core i5-5257U
DDR4-2400 Memory LPDDR3-1866, DDR3-1600
1536 GB Max. Memory 16 GB
4 (Quad Channel) Memory channels 2 (Dual Channel)
76.8 GB/s Max. Bandwidth 29.9 GB/s
Yes ECC No
-- L2 Cache --
20.00 MB L3 Cache 3.00 MB
3.0 PCIe version 2.0
40 PCIe lanes 12
39.4 GB/s PCIe Bandwidth 6.0 GB/s

Thermal Management

The Intel Xeon E5-2643 v4 has a TDP of 135 W. The TDP of the Intel Core i5-5257U is 28 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Xeon E5-2643 v4 Characteristic Intel Core i5-5257U
135 W TDP (PL1 / PBP) 28 W
-- TDP (PL2) --
-- TDP up --
-- TDP down 23 W
-- Tjunction max. 105 °C

Technical details

The Intel Xeon E5-2643 v4 has 20.00 MB cache and is manufactured in 14 nm. The cache of Intel Core i5-5257U is at 3.00 MB. The processor is manufactured in 14 nm.

Intel Xeon E5-2643 v4 Characteristic Intel Core i5-5257U
14 nm Technology 14 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
LGA 2011-3 Socket BGA 1168
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q1/2016 Release date Q1/2015
1550 $ Release price --
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 4 CPU benchmarks
Intel Xeon E5-2643 v4 (100%)
Intel Core i5-5257U (79%)
⌀ Multi core performance in 5 CPU benchmarks
Intel Xeon E5-2643 v4 (100%)
Intel Core i5-5257U (26%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Xeon E5-2643 v4 Intel Xeon E5-2643 v4
6C 12T @ 3.70 GHz
1002 (100%)
Intel Core i5-5257U Intel Core i5-5257U
2C 4T @ 3.10 GHz
760 (76%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Xeon E5-2643 v4 Intel Xeon E5-2643 v4
6C 12T @ 3.60 GHz
6125 (100%)
Intel Core i5-5257U Intel Core i5-5257U
2C 4T @ 3.10 GHz
1649 (27%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Xeon E5-2643 v4 Intel Xeon E5-2643 v4
6C 12T @ 3.70 GHz
1228 (100%)
Intel Core i5-5257U Intel Core i5-5257U
2C 4T @ 3.10 GHz
971 (79%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Xeon E5-2643 v4 Intel Xeon E5-2643 v4
6C 12T @ 3.60 GHz
5482 (100%)
Intel Core i5-5257U Intel Core i5-5257U
2C 4T @ 3.10 GHz
1964 (36%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Xeon E5-2643 v4 Intel Xeon E5-2643 v4
6C 12T @ 3.70 GHz
351 (100%)
Intel Core i5-5257U Intel Core i5-5257U
2C 4T @ 3.10 GHz
277 (79%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Xeon E5-2643 v4 Intel Xeon E5-2643 v4
6C 12T @ 3.60 GHz
4905 (100%)
Intel Core i5-5257U Intel Core i5-5257U
2C 4T @ 3.10 GHz
706 (14%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Xeon E5-2643 v4 Intel Xeon E5-2643 v4
6C 12T @ 3.60 GHz
11063 (100%)
Intel Core i5-5257U Intel Core i5-5257U
2C 4T @ 3.10 GHz
3034 (27%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Xeon E5-2643 v4 Intel Xeon E5-2643 v4
6C 12T @ 3.70 GHz
155 (100%)
Intel Core i5-5257U Intel Core i5-5257U
2C 4T @ 3.10 GHz
126 (81%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Xeon E5-2643 v4 Intel Xeon E5-2643 v4
6C 12T @ 3.60 GHz
1150 (100%)
Intel Core i5-5257U Intel Core i5-5257U
2C 4T @ 3.10 GHz
327 (28%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
Intel Xeon E5-2643 v4 Intel Xeon E5-2643 v4
6C 12T @ 3.70 GHz
50 (100%)
Intel Core i5-5257U Intel Core i5-5257U
2C 4T @ 3.10 GHz
0 (0%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
Intel Xeon E5-2643 v4 Intel Xeon E5-2643 v4
6C 12T @ 3.70 GHz
697 (100%)
Intel Core i5-5257U Intel Core i5-5257U
2C 4T @ 3.10 GHz
0 (0%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Xeon E5-2643 v4 Intel Xeon E5-2643 v4
@ 0.00 GHz
0 (0%)
Intel Core i5-5257U Intel Core i5-5257U
Intel Iris Graphics 6100 @ 1.05 GHz
806 (100%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
Intel Xeon E5-2643 v4 Intel Xeon E5-2643 v4
6C 12T @ 3.60 GHz
290.2 (100%)
Intel Core i5-5257U Intel Core i5-5257U
2C 4T @ 3.10 GHz
0 (0%)

Devices using this processor

Intel Xeon E5-2643 v4 Intel Core i5-5257U
Unknown Unknown

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