Intel Core2 Duo E6540 vs Intel Atom Z3735G

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CPU comparison with benchmarks


Intel Core2 Duo E6540 CPU1 vs CPU2 Intel Atom Z3735G
Intel Core2 Duo E6540 Intel Atom Z3735G

CPU comparison

Intel Core2 Duo E6540 or Intel Atom Z3735G - 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 Core2 Duo E6540 has 2 cores with 2 threads and clocks with a maximum frequency of 2.33 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Core2 Duo E6540 was released in Q3/2007.

The Intel Atom Z3735G has 4 cores with 4 threads and clocks with a maximum frequency of 1.83 GHz. The CPU supports up to 1 GB of memory in 1 memory channels. The Intel Atom Z3735G was released in Q1/2014.
Intel Core2 Duo (29) Family Intel Atom (108)
Intel Core 2 Duo E4000/E6000 (15) CPU group Intel Atom Z3700 (16)
1 Generation 4
Conroe (Core) Architecture Bay Trail
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core2 Duo E6540 has 2 CPU cores and can calculate 2 threads in parallel. The clock frequency of the Intel Core2 Duo E6540 is 2.33 GHz while the Intel Atom Z3735G has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Intel Atom Z3735G is at 1.33 GHz (1.83 GHz).

Intel Core2 Duo E6540 Characteristic Intel Atom Z3735G
2 Cores 4
2 Threads 4
normal Core architecture normal
No Hyperthreading No
Yes Overclocking ? No
2.33 GHz Frequency 1.33 GHz
-- Turbo Frequency (1 Core) 1.83 GHz
-- Turbo Frequency (All Cores) 1.83 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 Core2 Duo E6540 Characteristic Intel Atom Z3735G
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Core2 Duo E6540 or Intel Atom Z3735G 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.

no iGPU GPU Intel HD Graphics (Bay Trail GT1)
GPU frequency 0.31 GHz
-- GPU (Turbo) 0.65 GHz
-- GPU Generation 7
Technology 22 nm
Max. displays 2
-- Compute units 4
-- Shader 32
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 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 HD Graphics (Bay Trail GT1)
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 No
No Codec AV1 No
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode

Memory & PCIe

The Intel Core2 Duo E6540 can use up to 16 GB of memory in 2 memory channels. The maximum memory bandwidth is 21.3 GB/s. The Intel Atom Z3735G supports up to 1 GB of memory in 1 memory channels and achieves a memory bandwidth of up to 10.6 GB/s.

Intel Core2 Duo E6540 Characteristic Intel Atom Z3735G
DDR3-1333, DDR2-1066 Memory DDR3L-1333
16 GB Max. Memory 1 GB
2 (Dual Channel) Memory channels 1 (Single Channel)
21.3 GB/s Max. Bandwidth 10.6 GB/s
No ECC No
4.00 MB L2 Cache --
-- L3 Cache 2.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the Intel Core2 Duo E6540 is 65 W, while the Intel Atom Z3735G has a TDP of 4 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Core2 Duo E6540 Characteristic Intel Atom Z3735G
65 W TDP (PL1 / PBP) 4 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Intel Core2 Duo E6540 is manufactured in 65 nm and has 4.00 MB cache. The Intel Atom Z3735G is manufactured in 22 nm and has a 2.00 MB cache.

Intel Core2 Duo E6540 Characteristic Intel Atom Z3735G
65 nm Technology 22 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
MMX, SSE, SSE2, SSE3 ISA extensions SSE4.1, SSE4.2
LGA 775 Socket BGA 592
VT-x Virtualization VT-x, VT-x EPT
No AES-NI Yes
Windows 10, Linux Operating systems
Q3/2007 Release date Q1/2014
-- Release price 17 $
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Core2 Duo E6540 (100%)
Intel Atom Z3735G (53%)
⌀ Multi core performance in 2 CPU benchmarks
Intel Core2 Duo E6540 (100%)
Intel Atom Z3735G (89%)

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 Core2 Duo E6540 Intel Core2 Duo E6540
2C 2T @ 2.33 GHz
342 (100%)
Intel Atom Z3735G Intel Atom Z3735G
4C 4T @ 1.83 GHz
182 (53%)

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 Core2 Duo E6540 Intel Core2 Duo E6540
2C 2T @ 2.33 GHz
625 (100%)
Intel Atom Z3735G Intel Atom Z3735G
4C 4T @ 1.83 GHz
507 (81%)

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 Core2 Duo E6540 Intel Core2 Duo E6540
2C 2T @ 2.33 GHz
793 (100%)
Intel Atom Z3735G Intel Atom Z3735G
4C 4T @ 1.83 GHz
772 (97%)

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 Core2 Duo E6540 Intel Core2 Duo E6540
@ 0.00 GHz
0 (0%)
Intel Atom Z3735G Intel Atom Z3735G
Intel HD Graphics (Bay Trail GT1) @ 0.65 GHz
41 (100%)

Devices using this processor

Intel Core2 Duo E6540 Intel Atom Z3735G
Unknown Unknown

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