Intel Core2 Duo E8400 vs Intel Core i7-3630QM

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CPU comparison with benchmarks


Intel Core2 Duo E8400 CPU1 vs CPU2 Intel Core i7-3630QM
Intel Core2 Duo E8400 Intel Core i7-3630QM

CPU comparison

Intel Core2 Duo E8400 or Intel Core i7-3630QM - 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 E8400 has 2 cores with 2 threads and clocks with a maximum frequency of 3.00 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Core2 Duo E8400 was released in Q1/2008.

The Intel Core i7-3630QM has 4 cores with 8 threads and clocks with a maximum frequency of 3.40 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Core i7-3630QM was released in Q3/2012.
Intel Core2 Duo (29) Family Intel Core i7 (298)
Intel Core 2 Duo E7000/E8000 (14) CPU group Intel Core i 3000M (29)
2 Generation 3
Wolfdale (Penryn) Architecture Ivy Bridge H
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core2 Duo E8400 is a 2 core processor with a clock frequency of 3.00 GHz. The Intel Core i7-3630QM has 4 CPU cores with a clock frequency of 2.40 GHz (3.40 GHz).

Intel Core2 Duo E8400 Characteristic Intel Core i7-3630QM
2 Cores 4
2 Threads 8
normal Core architecture normal
No Hyperthreading Yes
Yes Overclocking ? No
3.00 GHz Frequency 2.40 GHz
-- Turbo Frequency (1 Core) 3.40 GHz
-- 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 E8400 Characteristic Intel Core i7-3630QM
-- 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 HD Graphics 4000
GPU frequency 0.65 GHz
-- GPU (Turbo) 1.15 GHz
-- GPU Generation 7
Technology 22 nm
Max. displays 3
-- Compute units 16
-- Shader 128
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
-- DirectX Version 11.0

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 4000
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 E8400 supports a maximum of 16 GB of memory in 2 memory channels. The Intel Core i7-3630QM can connect up to 32 GB of memory in 2 memory channels.

Intel Core2 Duo E8400 Characteristic Intel Core i7-3630QM
DDR3-1333, DDR2-1066 Memory DDR3L-1333, DDR3L-1600, DDR3-1333, DDR3-1600
16 GB Max. Memory 32 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 25.6 GB/s
No ECC No
6.00 MB L2 Cache --
-- L3 Cache 6.00 MB
-- PCIe version 3.0
-- PCIe lanes 16
-- PCIe Bandwidth 15.8 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core2 Duo E8400 has a TDP of 65 W, that of the Intel Core i7-3630QM is 45 W.

Intel Core2 Duo E8400 Characteristic Intel Core i7-3630QM
65 W TDP (PL1 / PBP) 45 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. 105 °C

Technical details

The Intel Core2 Duo E8400 has a 6.00 MB cache, while the Intel Core i7-3630QM cache has a total of 6.00 MB.

Intel Core2 Duo E8400 Characteristic Intel Core i7-3630QM
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, AVX
LGA 775 Socket PGA 988
VT-x Virtualization VT-x, VT-x EPT
No AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q1/2008 Release date Q3/2012
-- Release price 363 $
show more data show more data


Rate these processors

Here you can rate the Intel Core2 Duo E8400 to help other visitors make their purchasing decisions. The average rating is 4.6 stars (11 ratings). Rate now:
Here you can rate the Intel Core i7-3630QM to help other visitors make their purchasing decisions. The average rating is 3.0 stars (2 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Core2 Duo E8400 (65%)
Intel Core i7-3630QM (100%)
⌀ Multi core performance in 3 CPU benchmarks
Intel Core2 Duo E8400 (28%)
Intel Core i7-3630QM (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 E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
473 (65%)
Intel Core i7-3630QM Intel Core i7-3630QM
4C 8T @ 3.40 GHz
731 (100%)

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 E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
841 (30%)
Intel Core i7-3630QM Intel Core i7-3630QM
4C 8T @ 2.40 GHz
2823 (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 E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
1129 (24%)
Intel Core i7-3630QM Intel Core i7-3630QM
4C 8T @ 2.40 GHz
4732 (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 E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
465 (30%)
Intel Core i7-3630QM Intel Core i7-3630QM
4C 8T @ 2.40 GHz
1574 (100%)

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 Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
0 (0%)
Intel Core i7-3630QM Intel Core i7-3630QM
4C 8T @ 3.40 GHz
646 (100%)

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 Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
0 (0%)
Intel Core i7-3630QM Intel Core i7-3630QM
4C 8T @ 2.40 GHz
2265 (100%)

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 Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
0 (0%)
Intel Core i7-3630QM Intel Core i7-3630QM
4C 8T @ 3.40 GHz
245 (100%)

Cinebench R20 (Multi-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 multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
0 (0%)
Intel Core i7-3630QM Intel Core i7-3630QM
4C 8T @ 2.40 GHz
1230 (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 E8400 Intel Core2 Duo E8400
@ 0.00 GHz
0 (0%)
Intel Core i7-3630QM Intel Core i7-3630QM
Intel HD Graphics 4000 @ 1.15 GHz
294 (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 E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
252 (100%)
Intel Core i7-3630QM Intel Core i7-3630QM
4C 8T @ 2.40 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 Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
0 (0%)
Intel Core i7-3630QM Intel Core i7-3630QM
4C 8T @ 3.40 GHz
120 (100%)

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 Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
0 (0%)
Intel Core i7-3630QM Intel Core i7-3630QM
4C 8T @ 2.40 GHz
590 (100%)

Devices using this processor

Intel Core2 Duo E8400 Intel Core i7-3630QM
Unknown Unknown

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