Intel Core2 Duo E6700 vs Intel Core i7-6650U

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CPU comparison with benchmarks


Intel Core2 Duo E6700 CPU1 vs CPU2 Intel Core i7-6650U
Intel Core2 Duo E6700 Intel Core i7-6650U

CPU comparison

In this CPU comparison, we compare the Intel Core2 Duo E6700 and the Intel Core i7-6650U and use benchmarks to check which processor is faster.

We compare the Intel Core2 Duo E6700 2 core processor released in Q3/2006 with the Intel Core i7-6650U which has 2 CPU cores and was introduced in Q3/2015.
Intel Core2 Duo (29) Family Intel Core i7 (298)
Intel Core 2 Duo E4000/E6000 (15) CPU group Intel Core i 6000U (20)
1 Generation 6
Conroe (Core) Architecture Skylake U
Desktop / Server Segment Mobile
-- Predecessor Intel Core i7-5650U
-- Successor --

CPU Cores and Base Frequency

The Intel Core2 Duo E6700 is a 2 core processor with a clock frequency of 2.66 GHz. The processor can compute 2 threads at the same time. The Intel Core i7-6650U clocks with 2.20 GHz (3.40 GHz), has 2 CPU cores and can calculate 4 threads in parallel.

Intel Core2 Duo E6700 Characteristic Intel Core i7-6650U
2 Cores 2
2 Threads 4
normal Core architecture normal
No Hyperthreading Yes
Yes Overclocking ? No
2.66 GHz Frequency 2.20 GHz
-- Turbo Frequency (1 Core) 3.40 GHz
-- Turbo Frequency (All Cores) 2.80 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 E6700 Characteristic Intel Core i7-6650U
-- AI hardware --
-- AI specifications --

Internal Graphics

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 Iris Graphics 540
GPU frequency 0.30 GHz
-- GPU (Turbo) 1.05 GHz
-- GPU Generation 9
Technology 14 nm
Max. displays 3
-- Compute units 48
-- Shader 384
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 32 GB
-- DirectX Version 12

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 Graphics 540
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) No
No Codec h264 Decode / Encode
No Codec VP9 No
No Codec VP8 Decode / Encode
No Codec AV1 No
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

Up to 16 GB of memory in a maximum of 2 memory channels is supported by the Intel Core2 Duo E6700, while the Intel Core i7-6650U supports a maximum of 32 GB of memory with a maximum memory bandwidth of 34.1 GB/s enabled.

Intel Core2 Duo E6700 Characteristic Intel Core i7-6650U
DDR3-1333, DDR2-1066 Memory LPDDR3-1866, DDR4-2133, DDR3L-1600
16 GB Max. Memory 32 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 34.1 GB/s
No ECC No
4.00 MB L2 Cache --
-- L3 Cache 4.00 MB
-- PCIe version 3.0
-- PCIe lanes 12
-- PCIe Bandwidth 11.8 GB/s

Thermal Management

The Intel Core2 Duo E6700 has a TDP of 65 W. The TDP of the Intel Core i7-6650U is 15 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Core2 Duo E6700 Characteristic Intel Core i7-6650U
65 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) --
-- TDP up --
-- TDP down 9.5 W
-- Tjunction max. 100 °C

Technical details

The Intel Core2 Duo E6700 has 4.00 MB cache and is manufactured in 65 nm. The cache of Intel Core i7-6650U is at 4.00 MB. The processor is manufactured in 14 nm.

Intel Core2 Duo E6700 Characteristic Intel Core i7-6650U
65 nm Technology 14 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 1356
VT-x Virtualization VT-x, VT-x EPT, VT-d
No AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q3/2006 Release date Q3/2015
-- Release price 415 $
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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Core2 Duo E6700 (45%)
Intel Core i7-6650U (100%)
⌀ Multi core performance in 2 CPU benchmarks
Intel Core2 Duo E6700 (31%)
Intel Core i7-6650U (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 E6700 Intel Core2 Duo E6700
2C 2T @ 2.66 GHz
365 (45%)
Intel Core i7-6650U Intel Core i7-6650U
2C 4T @ 3.40 GHz
820 (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 E6700 Intel Core2 Duo E6700
2C 2T @ 2.66 GHz
617 (33%)
Intel Core i7-6650U Intel Core i7-6650U
2C 4T @ 2.80 GHz
1846 (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 E6700 Intel Core2 Duo E6700
2C 2T @ 2.66 GHz
1014 (28%)
Intel Core i7-6650U Intel Core i7-6650U
2C 4T @ 2.80 GHz
3650 (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 E6700 Intel Core2 Duo E6700
2C 2T @ 2.66 GHz
0 (0%)
Intel Core i7-6650U Intel Core i7-6650U
2C 4T @ 3.40 GHz
1092 (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 E6700 Intel Core2 Duo E6700
2C 2T @ 2.66 GHz
0 (0%)
Intel Core i7-6650U Intel Core i7-6650U
2C 4T @ 2.80 GHz
2146 (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 E6700 Intel Core2 Duo E6700
@ 0.00 GHz
0 (0%)
Intel Core i7-6650U Intel Core i7-6650U
Intel Iris Graphics 540 @ 1.05 GHz
806 (100%)

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 E6700 Intel Core2 Duo E6700
2C 2T @ 2.66 GHz
0 (0%)
Intel Core i7-6650U Intel Core i7-6650U
2C 4T @ 3.40 GHz
144 (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 E6700 Intel Core2 Duo E6700
2C 2T @ 2.66 GHz
0 (0%)
Intel Core i7-6650U Intel Core i7-6650U
2C 4T @ 2.80 GHz
300 (100%)

Devices using this processor

Intel Core2 Duo E6700 Intel Core i7-6650U
Unknown Unknown

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