Intel Core2 Duo E4300 vs Intel Atom Z3745

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CPU comparison with benchmarks


Intel Core2 Duo E4300 CPU1 vs CPU2 Intel Atom Z3745
Intel Core2 Duo E4300 Intel Atom Z3745

CPU comparison

In this CPU comparison, we compare the Intel Core2 Duo E4300 and the Intel Atom Z3745 and use benchmarks to check which processor is faster.

We compare the Intel Core2 Duo E4300 2 core processor released in Q3/2007 with the Intel Atom Z3745 which has 4 CPU cores and was introduced 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 E4300 is a 2 core processor with a clock frequency of 1.80 GHz. The processor can compute 2 threads at the same time. The Intel Atom Z3745 clocks with 1.33 GHz (1.86 GHz), has 4 CPU cores and can calculate 4 threads in parallel.

Intel Core2 Duo E4300 Characteristic Intel Atom Z3745
2 Cores 4
2 Threads 4
normal Core architecture normal
No Hyperthreading No
Yes Overclocking ? No
1.80 GHz Frequency 1.33 GHz
-- Turbo Frequency (1 Core) 1.86 GHz
-- Turbo Frequency (All Cores) --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

Intel Core2 Duo E4300 Characteristic Intel Atom Z3745
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

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 HD Graphics (Bay Trail GT1)
GPU frequency 0.31 GHz
-- GPU (Turbo) 0.78 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

Up to 16 GB of memory in a maximum of 2 memory channels is supported by the Intel Core2 Duo E4300, while the Intel Atom Z3745 supports a maximum of 4 GB of memory with a maximum memory bandwidth of 17.1 GB/s enabled.

Intel Core2 Duo E4300 Characteristic Intel Atom Z3745
DDR3-1333, DDR2-1066 Memory LPDDR3-1066
16 GB Max. Memory 4 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 17.1 GB/s
No ECC No
2.00 MB L2 Cache --
-- L3 Cache 2.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The Intel Core2 Duo E4300 has a TDP of 65 W. The TDP of the Intel Atom Z3745 is 4 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Core2 Duo E4300 Characteristic Intel Atom Z3745
65 W TDP (PL1 / PBP) 4 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. 90 °C

Technical details

The Intel Core2 Duo E4300 has 2.00 MB cache and is manufactured in 65 nm. The cache of Intel Atom Z3745 is at 2.00 MB. The processor is manufactured in 22 nm.

Intel Core2 Duo E4300 Characteristic Intel Atom Z3745
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 1380
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 --
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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Core2 Duo E4300 (100%)
Intel Atom Z3745 (73%)
⌀ Multi core performance in 2 CPU benchmarks
Intel Core2 Duo E4300 (84%)
Intel Atom Z3745 (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 Core2 Duo E4300 Intel Core2 Duo E4300
2C 2T @ 1.80 GHz
251 (100%)
Intel Atom Z3745 Intel Atom Z3745
4C 4T @ 1.86 GHz
182 (73%)

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 E4300 Intel Core2 Duo E4300
2C 2T @ 1.80 GHz
459 (77%)
Intel Atom Z3745 Intel Atom Z3745
4C 4T @ 1.33 GHz
598 (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 Core2 Duo E4300 Intel Core2 Duo E4300
2C 2T @ 1.80 GHz
564 (91%)
Intel Atom Z3745 Intel Atom Z3745
4C 4T @ 1.33 GHz
621 (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 Core2 Duo E4300 Intel Core2 Duo E4300
@ 0.00 GHz
0 (0%)
Intel Atom Z3745 Intel Atom Z3745
Intel HD Graphics (Bay Trail GT1) @ 0.78 GHz
50 (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 Core2 Duo E4300 Intel Core2 Duo E4300
2C 2T @ 1.80 GHz
280 (100%)
Intel Atom Z3745 Intel Atom Z3745
4C 4T @ 1.33 GHz
0 (0%)

Devices using this processor

Intel Core2 Duo E4300 Intel Atom Z3745
Unknown Unknown

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