Intel Core2 Duo E6420 vs Intel Core i5-1235UL

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CPU comparison with benchmarks


Intel Core2 Duo E6420 CPU1 vs CPU2 Intel Core i5-1235UL
Intel Core2 Duo E6420 Intel Core i5-1235UL

CPU comparison

Intel Core2 Duo E6420 or Intel Core i5-1235UL - 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 E6420 has 2 cores with 2 threads and clocks with a maximum frequency of 2.13 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Core2 Duo E6420 was released in Q2/2007.

The Intel Core i5-1235UL has 10 cores with 12 threads and clocks with a maximum frequency of 4.40 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Core i5-1235UL was released in Q3/2022.
Intel Core2 Duo (29) Family Intel Core i5 (331)
Intel Core 2 Duo E4000/E6000 (15) CPU group Intel Core i 1200P/1200U (21)
1 Generation 12
Conroe (Core) Architecture Alder Lake U
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core2 Duo E6420 is a 2 core processor with a clock frequency of 2.13 GHz. The Intel Core i5-1235UL has 10 CPU cores with a clock frequency of 2.50 GHz (4.40 GHz).
Intel Core2 Duo E6420 Characteristic Intel Core i5-1235UL
2 Cores 10
2 Threads 12
normal Core architecture hybrid (big.LITTLE)
No Hyperthreading Yes
Yes Overclocking ? No
2.13 GHz A-Core 2.50 GHz (4.40 GHz)
2x Golden Cove
-- B-Core 0.90 GHz (3.30 GHz)
8x Gracemont

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 E6420 Characteristic Intel Core i5-1235UL
-- AI hardware --
-- AI specifications --

Internal Graphics

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.
no iGPU GPU Intel Iris Xe Graphics 80 (Alder Lake)
GPU frequency 0.35 GHz
-- GPU (Turbo) 1.20 GHz
-- GPU Generation 13
Technology 10 nm
Max. displays 4
-- Compute units 80
-- Shader 640
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 32 GB
-- DirectX Version 12.1

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.
no iGPU GPU Intel Iris Xe Graphics 80 (Alder Lake)
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
No Codec h264 Decode / Encode
No Codec VP9 Decode / Encode
No Codec VP8 Decode
No Codec AV1 Decode
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

The Intel Core2 Duo E6420 supports a maximum of 16 GB of memory in 2 memory channels. The Intel Core i5-1235UL can connect up to 64 GB of memory in 2 memory channels.
Intel Core2 Duo E6420 Characteristic Intel Core i5-1235UL
DDR3-1333, DDR2-1066 Memory DDR5-4800, DDR4-3200
16 GB Max. Memory 64 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 76.8 GB/s
No ECC No
4.00 MB L2 Cache 6.50 MB
-- L3 Cache 12.00 MB
-- PCIe version 4.0
-- PCIe lanes 28
-- PCIe Bandwidth 55.1 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core2 Duo E6420 has a TDP of 65 W, that of the Intel Core i5-1235UL is 15 W.
Intel Core2 Duo E6420 Characteristic Intel Core i5-1235UL
65 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) 55 W
-- TDP up 28 W
-- TDP down 12 W
-- Tjunction max. 100 °C

Technical details

The Intel Core2 Duo E6420 has a 4.00 MB cache, while the Intel Core i5-1235UL cache has a total of 18.50 MB.
Intel Core2 Duo E6420 Characteristic Intel Core i5-1235UL
65 nm Technology 10 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, AVX2
LGA 775 Socket BGA 1744
VT-x Virtualization VT-x, VT-x EPT, VT-d
No AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Windows 11, Linux
Q2/2007 Release date Q3/2022
-- Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Core2 Duo E6420 to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:
Here you can rate the Intel Core i5-1235UL to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


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 E6420 Intel Core2 Duo E6420
2C 2T @ 2.13 GHz
308 (100%)
Intel Core i5-1235UL Intel Core i5-1235UL
10C 12T @ 4.40 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 Core2 Duo E6420 Intel Core2 Duo E6420
2C 2T @ 2.13 GHz
565 (100%)
Intel Core i5-1235UL Intel Core i5-1235UL
10C 12T @ 3.10 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 Core2 Duo E6420 Intel Core2 Duo E6420
@ 0.00 GHz
0 (0%)
Intel Core i5-1235UL Intel Core i5-1235UL
Intel Iris Xe Graphics 80 (Alder Lake) @ 1.20 GHz
1487 (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 E6420 Intel Core2 Duo E6420
2C 2T @ 2.13 GHz
793 (100%)
Intel Core i5-1235UL Intel Core i5-1235UL
10C 12T @ 3.10 GHz
0 (0%)

Devices using this processor
Intel Core2 Duo E6420 Intel Core i5-1235UL
Unknown Unknown

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