Intel Xeon E5-2640 v4 vs Intel Pentium Gold 6405U

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CPU comparison with benchmarks


Intel Xeon E5-2640 v4 CPU1 vs CPU2 Intel Pentium Gold 6405U
Intel Xeon E5-2640 v4 Intel Pentium Gold 6405U

CPU comparison

Intel Xeon E5-2640 v4 or Intel Pentium Gold 6405U - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Xeon E5-2640 v4 has 10 cores with 20 threads and clocks with a maximum frequency of 3.40 GHz. Up to 1536 GB of memory is supported in 4 memory channels. The Intel Xeon E5-2640 v4 was released in Q1/2016.

The Intel Pentium Gold 6405U has 2 cores with 4 threads and clocks with a maximum frequency of 2.40 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Pentium Gold 6405U was released in Q4/2019.
Intel Xeon E5 (71) Family Intel Pentium (150)
Intel Xeon E5 v4 (24) CPU group Intel Pentium 6000 (1)
6 Generation 10
Broadwell E Architecture Comet Lake U
Desktop / Server Segment Mobile
Intel Xeon E5-2640 v3 Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Xeon E5-2640 v4 is a 10 core processor with a clock frequency of 2.40 GHz (3.40 GHz). The Intel Pentium Gold 6405U has 2 CPU cores with a clock frequency of 2.40 GHz.

Intel Xeon E5-2640 v4 Characteristic Intel Pentium Gold 6405U
10 Cores 2
20 Threads 4
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
2.40 GHz Frequency 2.40 GHz
3.40 GHz Turbo Frequency (1 Core) --
2.80 GHz Turbo Frequency (All Cores) --

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 E5-2640 v4 Characteristic Intel Pentium Gold 6405U
-- AI hardware --
-- AI specifications --

Internal Graphics

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

no iGPU GPU Intel UHD Graphics 610
GPU frequency 0.30 GHz
-- GPU (Turbo) 0.95 GHz
-- GPU Generation 9.5
Technology 14 nm
Max. displays 3
-- Compute units 12
-- Shader 96
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 32 GB
-- DirectX Version 12

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 UHD Graphics 610
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
No Codec h264 Decode / Encode
No Codec VP9 Decode / Encode
No Codec VP8 Decode / Encode
No Codec AV1 No
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

The Intel Xeon E5-2640 v4 supports a maximum of 1536 GB of memory in 4 memory channels. The Intel Pentium Gold 6405U can connect up to 64 GB of memory in 2 memory channels.

Intel Xeon E5-2640 v4 Characteristic Intel Pentium Gold 6405U
DDR4-2133 Memory LPDDR3-2133, DDR4-2400
1536 GB Max. Memory 64 GB
4 (Quad Channel) Memory channels 2 (Dual Channel)
68.2 GB/s Max. Bandwidth 38.4 GB/s
Yes ECC No
-- L2 Cache --
25.00 MB L3 Cache 2.00 MB
3.0 PCIe version 2.0
40 PCIe lanes 12
39.4 GB/s PCIe Bandwidth 6.0 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Xeon E5-2640 v4 has a TDP of 90 W, that of the Intel Pentium Gold 6405U is 15 W.

Intel Xeon E5-2640 v4 Characteristic Intel Pentium Gold 6405U
90 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) --
-- TDP up --
-- TDP down 12.5 W
-- Tjunction max. 100 °C

Technical details

The Intel Xeon E5-2640 v4 has a 25.00 MB cache, while the Intel Pentium Gold 6405U cache has a total of 2.00 MB.

Intel Xeon E5-2640 v4 Characteristic Intel Pentium Gold 6405U
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
LGA 2011-3 Socket BGA 1528
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, Windows 11, Linux
Q1/2016 Release date Q4/2019
940 $ Release price 193 $
show more data show more data


Rate these processors

Here you can rate the Intel Xeon E5-2640 v4 to help other visitors make their purchasing decisions. The average rating is 5.0 stars (4 ratings). Rate now:
Here you can rate the Intel Pentium Gold 6405U to help other visitors make their purchasing decisions. The average rating is 5.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Xeon E5-2640 v4 (100%)
Intel Pentium Gold 6405U (64%)
⌀ Multi core performance in 2 CPU benchmarks
Intel Xeon E5-2640 v4 (100%)
Intel Pentium Gold 6405U (20%)

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 E5-2640 v4 Intel Xeon E5-2640 v4
10C 20T @ 3.40 GHz
923 (100%)
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
592 (64%)

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 E5-2640 v4 Intel Xeon E5-2640 v4
10C 20T @ 2.80 GHz
6823 (100%)
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
1340 (20%)

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 E5-2640 v4 Intel Xeon E5-2640 v4
10C 20T @ 2.80 GHz
11982 (100%)
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
2329 (19%)

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 E5-2640 v4 Intel Xeon E5-2640 v4
10C 20T @ 3.40 GHz
1086 (100%)
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)

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 E5-2640 v4 Intel Xeon E5-2640 v4
10C 20T @ 2.80 GHz
6182 (100%)
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 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 E5-2640 v4 Intel Xeon E5-2640 v4
@ 0.00 GHz
0 (0%)
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
Intel UHD Graphics 610 @ 0.95 GHz
182 (100%)

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 E5-2640 v4 Intel Xeon E5-2640 v4
10C 20T @ 3.40 GHz
142 (100%)
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)

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 E5-2640 v4 Intel Xeon E5-2640 v4
10C 20T @ 2.80 GHz
1481 (100%)
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)

Devices using this processor

Intel Xeon E5-2640 v4 Intel Pentium Gold 6405U
Unknown Lenovo Ideapad 3 17IML05

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