Intel Pentium Gold 6405U vs Intel Core i5-2500k

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CPU comparison with benchmarks


Intel Pentium Gold 6405U CPU1 vs CPU2 Intel Core i5-2500k
Intel Pentium Gold 6405U Intel Core i5-2500k

CPU comparison

In this CPU comparison, we compare the Intel Pentium Gold 6405U and the Intel Core i5-2500k and use benchmarks to check which processor is faster.

We compare the Intel Pentium Gold 6405U 2 core processor released in Q4/2019 with the Intel Core i5-2500k which has 4 CPU cores and was introduced in Q1/2011.
Intel Pentium (150) Family Intel Core i5 (331)
Intel Pentium 6000 (1) CPU group Intel Core i 2000 (28)
10 Generation 2
Comet Lake U Architecture Sandy Bridge S
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Pentium Gold 6405U is a 2 core processor with a clock frequency of 2.40 GHz. The processor can compute 4 threads at the same time. The Intel Core i5-2500k clocks with 3.30 GHz (3.70 GHz), has 4 CPU cores and can calculate 4 threads in parallel.

Intel Pentium Gold 6405U Characteristic Intel Core i5-2500k
2 Cores 4
4 Threads 4
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? Yes
2.40 GHz Frequency 3.30 GHz
-- Turbo Frequency (1 Core) 3.70 GHz
-- Turbo Frequency (All Cores) 3.70 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 Pentium Gold 6405U Characteristic Intel Core i5-2500k
-- 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.

Intel UHD Graphics 610 GPU Intel HD Graphics 3000
0.30 GHz GPU frequency 0.85 GHz
0.95 GHz GPU (Turbo) 1.10 GHz
9.5 GPU Generation 6
14 nm Technology 32 nm
3 Max. displays 2
12 Compute units 12
96 Shader 96
No Hardware Raytracing No
No Frame Generation No
32 GB Max. GPU Memory 2 GB
12 DirectX Version 10.1

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.

Intel UHD Graphics 610 GPU Intel HD Graphics 3000
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 No
Decode / Encode Codec VP8 No
No Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG No

Memory & PCIe

Up to 64 GB of memory in a maximum of 2 memory channels is supported by the Intel Pentium Gold 6405U, while the Intel Core i5-2500k supports a maximum of 32 GB of memory with a maximum memory bandwidth of 21.3 GB/s enabled.

Intel Pentium Gold 6405U Characteristic Intel Core i5-2500k
LPDDR3-2133, DDR4-2400 Memory DDR3-1333
64 GB Max. Memory 32 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
38.4 GB/s Max. Bandwidth 21.3 GB/s
No ECC No
-- L2 Cache --
2.00 MB L3 Cache 6.00 MB
2.0 PCIe version 2.0
12 PCIe lanes 16
6.0 GB/s PCIe Bandwidth 8.0 GB/s

Thermal Management

The Intel Pentium Gold 6405U has a TDP of 15 W. The TDP of the Intel Core i5-2500k is 95 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Pentium Gold 6405U Characteristic Intel Core i5-2500k
15 W TDP (PL1 / PBP) 95 W
-- TDP (PL2) --
-- TDP up --
12.5 W TDP down --
100 °C Tjunction max. --

Technical details

The Intel Pentium Gold 6405U has 2.00 MB cache and is manufactured in 14 nm. The cache of Intel Core i5-2500k is at 6.00 MB. The processor is manufactured in 32 nm.

Intel Pentium Gold 6405U Characteristic Intel Core i5-2500k
14 nm Technology 32 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions SSE4.1, SSE4.2, AVX
BGA 1528 Socket LGA 1155
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Linux
Q4/2019 Release date Q1/2011
193 $ Release price --
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Rate these processors

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:
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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Pentium Gold 6405U (78%)
Intel Core i5-2500k (100%)
⌀ Multi core performance in 2 CPU benchmarks
Intel Pentium Gold 6405U (55%)
Intel Core i5-2500k (100%)

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 Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
592 (78%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.70 GHz
760 (100%)

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 Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
1340 (53%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.70 GHz
2537 (100%)

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 Pentium Gold 6405U Intel Pentium Gold 6405U
Intel UHD Graphics 610 @ 0.95 GHz
182 (86%)
Intel Core i5-2500k Intel Core i5-2500k
Intel HD Graphics 3000 @ 1.10 GHz
211 (100%)

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 Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
2329 (56%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.70 GHz
4155 (100%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 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 Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.70 GHz
697 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 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 Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.70 GHz
2450 (100%)

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 Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.70 GHz
651 (100%)

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 Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.70 GHz
1948 (100%)

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 Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.70 GHz
262 (100%)

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 Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.70 GHz
894 (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 Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.70 GHz
778.7 (100%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.70 GHz
372 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.30 GHz
1336 (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 Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.70 GHz
127 (100%)

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 Pentium Gold 6405U Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz
0 (0%)
Intel Core i5-2500k Intel Core i5-2500k
4C 4T @ 3.70 GHz
461 (100%)

Devices using this processor

Intel Pentium Gold 6405U Intel Core i5-2500k
Lenovo Ideapad 3 17IML05 Unknown

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