Intel Pentium Gold G6400T vs Intel Atom S1240

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CPU comparison with benchmarks


Intel Pentium Gold G6400T CPU1 vs CPU2 Intel Atom S1240
Intel Pentium Gold G6400T Intel Atom S1240

CPU comparison

Intel Pentium Gold G6400T or Intel Atom S1240 - 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 Pentium Gold G6400T has 2 cores with 4 threads and clocks with a maximum frequency of 3.40 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Pentium Gold G6400T was released in Q2/2020.

The Intel Atom S1240 has 2 cores with 4 threads and clocks with a maximum frequency of 1.60 GHz. The CPU supports up to 8 GB of memory in 1 memory channels. The Intel Atom S1240 was released in Q4/2012.
Intel Pentium (150) Family Intel Atom (101)
Intel Pentium G6000 (12) CPU group Intel Atom S1000 (3)
10 Generation 2
Comet Lake S Architecture Centerton
Desktop / Server Segment Desktop / Server
Intel Pentium Gold G5400T Predecessor --
Intel Pentium Gold G7400T Successor --

CPU Cores and Base Frequency

The Intel Pentium Gold G6400T has 2 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Pentium Gold G6400T is 3.40 GHz while the Intel Atom S1240 has 2 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Intel Atom S1240 is at 1.60 GHz.

Intel Pentium Gold G6400T Characteristic Intel Atom S1240
2 Cores 2
4 Threads 4
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
3.40 GHz Frequency 1.60 GHz
-- Turbo Frequency (1 Core) --
-- 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 Pentium Gold G6400T Characteristic Intel Atom S1240
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Pentium Gold G6400T or Intel Atom S1240 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

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

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

Memory & PCIe

The Intel Pentium Gold G6400T can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 42.7 GB/s. The Intel Atom S1240 supports up to 8 GB of memory in 1 memory channels and achieves a memory bandwidth of up to 10.6 GB/s.

Intel Pentium Gold G6400T Characteristic Intel Atom S1240
DDR4-2666 Memory DDR3-1333
128 GB Max. Memory 8 GB
2 (Dual Channel) Memory channels 1 (Single Channel)
42.7 GB/s Max. Bandwidth 10.6 GB/s
Yes ECC Yes
-- L2 Cache --
4.00 MB L3 Cache 1.00 MB
3.0 PCIe version 2.0
16 PCIe lanes 8
15.8 GB/s PCIe Bandwidth 4.0 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Pentium Gold G6400T is 35 W, while the Intel Atom S1240 has a TDP of 6.1 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Pentium Gold G6400T Characteristic Intel Atom S1240
35 W TDP (PL1 / PBP) 6.1 W
-- TDP (PL2) --
-- TDP up --
25 W TDP down --
100 °C Tjunction max. --

Technical details

The Intel Pentium Gold G6400T is manufactured in 14 nm and has 4.00 MB cache. The Intel Atom S1240 is manufactured in 32 nm and has a 1.00 MB cache.

Intel Pentium Gold G6400T Characteristic Intel Atom S1240
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 SSE3
LGA 1200 Socket BGA 1283
VT-x, VT-x EPT, VT-d Virtualization VT-x
Yes AES-NI No
Windows 10, Windows 11, Linux Operating systems Windows 10, Linux
Q2/2020 Release date Q4/2012
77 $ Release price 39 $
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 0 CPU benchmarks
⌀ Multi core performance in 1 CPU benchmarks

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 G6400T Intel Pentium Gold G6400T
2C 4T @ 3.40 GHz
3592 (100%)
Intel Atom S1240 Intel Atom S1240
2C 4T @ 1.60 GHz
432 (12%)

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 G6400T Intel Pentium Gold G6400T
2C 4T @ 3.40 GHz
871 (100%)
Intel Atom S1240 Intel Atom S1240
2C 4T @ 1.60 GHz
0 (0%)

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 G6400T Intel Pentium Gold G6400T
2C 4T @ 3.40 GHz
1821 (100%)
Intel Atom S1240 Intel Atom S1240
2C 4T @ 1.60 GHz
0 (0%)

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 G6400T Intel Pentium Gold G6400T
2C 4T @ 3.40 GHz
734 (100%)
Intel Atom S1240 Intel Atom S1240
2C 4T @ 1.60 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 Pentium Gold G6400T Intel Pentium Gold G6400T
2C 4T @ 3.40 GHz
1515 (100%)
Intel Atom S1240 Intel Atom S1240
2C 4T @ 1.60 GHz
0 (0%)

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 G6400T Intel Pentium Gold G6400T
2C 4T @ 3.40 GHz
356 (100%)
Intel Atom S1240 Intel Atom S1240
2C 4T @ 1.60 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 Pentium Gold G6400T Intel Pentium Gold G6400T
Intel HD Graphics 610 @ 1.05 GHz
202 (100%)
Intel Atom S1240 Intel Atom S1240
@ 0.00 GHz
0 (0%)

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 G6400T Intel Pentium Gold G6400T
2C 4T @ 3.40 GHz
143 (100%)
Intel Atom S1240 Intel Atom S1240
2C 4T @ 1.60 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 Pentium Gold G6400T Intel Pentium Gold G6400T
2C 4T @ 3.40 GHz
355 (100%)
Intel Atom S1240 Intel Atom S1240
2C 4T @ 1.60 GHz
0 (0%)

Devices using this processor

Intel Pentium Gold G6400T Intel Atom S1240
Unknown Unknown

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