Intel Core2 Duo E7500 vs Intel Atom E3815

Last updated:

CPU comparison with benchmarks


Intel Core2 Duo E7500 CPU1 vs CPU2 Intel Atom E3815
Intel Core2 Duo E7500 Intel Atom E3815

CPU comparison

Intel Core2 Duo E7500 or Intel Atom E3815 - 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 E7500 has 2 cores with 2 threads and clocks with a maximum frequency of 2.93 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Core2 Duo E7500 was released in Q1/2009.

The Intel Atom E3815 has 1 cores with 1 threads and clocks with a maximum frequency of 1.46 GHz. The CPU supports up to 8 GB of memory in 1 memory channels. The Intel Atom E3815 was released in Q4/2013.
Intel Core2 Duo (29) Family Intel Atom (108)
Intel Core 2 Duo E7000/E8000 (14) CPU group Intel Atom E3800 (6)
2 Generation 4
Wolfdale (Penryn) Architecture Bay Trail
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core2 Duo E7500 has 2 CPU cores and can calculate 2 threads in parallel. The clock frequency of the Intel Core2 Duo E7500 is 2.93 GHz while the Intel Atom E3815 has 1 CPU cores and 1 threads can calculate simultaneously. The clock frequency of the Intel Atom E3815 is at 1.46 GHz.

Intel Core2 Duo E7500 Characteristic Intel Atom E3815
2 Cores 1
2 Threads 1
normal Core architecture normal
No Hyperthreading No
Yes Overclocking ? No
2.93 GHz Frequency 1.46 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 Core2 Duo E7500 Characteristic Intel Atom E3815
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Core2 Duo E7500 or Intel Atom E3815 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 0.40 GHz
-- GPU (Turbo) 0.40 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 E7500 can use up to 16 GB of memory in 2 memory channels. The maximum memory bandwidth is 21.3 GB/s. The Intel Atom E3815 supports up to 8 GB of memory in 1 memory channels and achieves a memory bandwidth of up to 8.6 GB/s.

Intel Core2 Duo E7500 Characteristic Intel Atom E3815
DDR3-1333, DDR2-1066 Memory DDR3L-1066
16 GB Max. Memory 8 GB
2 (Dual Channel) Memory channels 1 (Single Channel)
21.3 GB/s Max. Bandwidth 8.6 GB/s
No ECC No
3.00 MB L2 Cache --
-- L3 Cache 1.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the Intel Core2 Duo E7500 is 65 W, while the Intel Atom E3815 has a TDP of 5 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Core2 Duo E7500 Characteristic Intel Atom E3815
65 W TDP (PL1 / PBP) 5 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Intel Core2 Duo E7500 is manufactured in 45 nm and has 3.00 MB cache. The Intel Atom E3815 is manufactured in 22 nm and has a 1.00 MB cache.

Intel Core2 Duo E7500 Characteristic Intel Atom E3815
45 nm Technology 22 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
MMX, SSE, SSE2, SSE3, SSE 4.1 ISA extensions SSE4.1, SSE4.2
LGA 775 Socket BGA 1170
VT-x Virtualization VT-x, VT-x EPT
No AES-NI Yes
Windows 10, Linux Operating systems
Q1/2009 Release date Q4/2013
-- Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Core2 Duo E7500 to help other visitors make their purchasing decisions. The average rating is 3.4 stars (5 ratings). Rate now:
Here you can rate the Intel Atom E3815 to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Core2 Duo E7500 (100%)
Intel Atom E3815 (32%)
⌀ Multi core performance in 2 CPU benchmarks
Intel Core2 Duo E7500 (100%)
Intel Atom E3815 (18%)

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 E7500 Intel Core2 Duo E7500
2C 2T @ 2.93 GHz
455 (100%)
Intel Atom E3815 Intel Atom E3815
1C 1T @ 1.46 GHz
147 (32%)

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 E7500 Intel Core2 Duo E7500
2C 2T @ 2.93 GHz
817 (100%)
Intel Atom E3815 Intel Atom E3815
1C 1T @ 1.46 GHz
148 (18%)

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 E7500 Intel Core2 Duo E7500
2C 2T @ 2.93 GHz
1076 (100%)
Intel Atom E3815 Intel Atom E3815
1C 1T @ 1.46 GHz
184 (17%)

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 E7500 Intel Core2 Duo E7500
@ 0.00 GHz
0 (0%)
Intel Atom E3815 Intel Atom E3815
Intel HD Graphics (Bay Trail GT1) @ 0.40 GHz
26 (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 Core2 Duo E7500 Intel Core2 Duo E7500
2C 2T @ 2.93 GHz
247 (100%)
Intel Atom E3815 Intel Atom E3815
1C 1T @ 1.46 GHz
0 (0%)

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 E7500 Intel Core2 Duo E7500
2C 2T @ 2.93 GHz
478 (100%)
Intel Atom E3815 Intel Atom E3815
1C 1T @ 1.46 GHz
0 (0%)

Devices using this processor

Intel Core2 Duo E7500 Intel Atom E3815
Unknown Unknown

Popular comparisons containing this CPUs

1. Intel Celeron J1900Intel Atom E3815 Intel Celeron J1900 vs Intel Atom E3815
2. Intel Atom E3815Intel Atom E3845 Intel Atom E3815 vs Intel Atom E3845
3. Intel Atom E3815Intel Atom E3827 Intel Atom E3815 vs Intel Atom E3827
4. Intel Atom E3815Intel Celeron N2820 Intel Atom E3815 vs Intel Celeron N2820
5. Intel Atom E3815Intel Atom E3825 Intel Atom E3815 vs Intel Atom E3825
6. Intel Atom E3815Intel Atom D2700 Intel Atom E3815 vs Intel Atom D2700
7. Intel Atom E3815AMD E-350 Intel Atom E3815 vs AMD E-350
8. Intel Atom E3815Intel Atom C2530 Intel Atom E3815 vs Intel Atom C2530
9. Intel Atom E3815Intel Core i5-4250U Intel Atom E3815 vs Intel Core i5-4250U
10. Intel Atom E3815Intel Atom N2800 Intel Atom E3815 vs Intel Atom N2800


back to index