Intel Celeron N2940 vs Intel Core2 Duo E6540

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CPU comparison with benchmarks


Intel Celeron N2940 CPU1 vs CPU2 Intel Core2 Duo E6540
Intel Celeron N2940 Intel Core2 Duo E6540

CPU comparison

Intel Celeron N2940 or Intel Core2 Duo E6540 - 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 Celeron N2940 has 4 cores with 4 threads and clocks with a maximum frequency of 2.25 GHz. Up to 8 GB of memory is supported in 2 memory channels. The Intel Celeron N2940 was released in Q2/2014.

The Intel Core2 Duo E6540 has 2 cores with 2 threads and clocks with a maximum frequency of 2.33 GHz. The CPU supports up to 16 GB of memory in 2 memory channels. The Intel Core2 Duo E6540 was released in Q3/2007.
Intel Celeron (165) Family Intel Core2 Duo (29)
Intel Celeron J1000/N2000 (17) CPU group Intel Core 2 Duo E4000/E6000 (15)
6 Generation 1
Bay Trail Architecture Conroe (Core)
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Celeron N2940 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Celeron N2940 is 1.83 GHz (2.25 GHz) while the Intel Core2 Duo E6540 has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the Intel Core2 Duo E6540 is at 2.33 GHz.

Intel Celeron N2940 Characteristic Intel Core2 Duo E6540
4 Cores 2
4 Threads 2
normal Core architecture normal
No Hyperthreading No
No Overclocking ? Yes
1.83 GHz Frequency 2.33 GHz
2.25 GHz Turbo Frequency (1 Core) --
2.25 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 Celeron N2940 Characteristic Intel Core2 Duo E6540
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Celeron N2940 or Intel Core2 Duo E6540 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.

Intel HD Graphics (Bay Trail GT1) GPU no iGPU
0.31 GHz GPU frequency --
0.85 GHz GPU (Turbo) --
7 GPU Generation --
22 nm Technology
2 Max. displays
4 Compute units --
32 Shader --
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory --
11.2 DirectX Version --

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.

Intel HD Graphics (Bay Trail GT1) GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
Decode / Encode Codec AVC No
Decode Codec VC-1 No
Decode Codec JPEG No

Memory & PCIe

The Intel Celeron N2940 can use up to 8 GB of memory in 2 memory channels. The maximum memory bandwidth is 21.3 GB/s. The Intel Core2 Duo E6540 supports up to 16 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 21.3 GB/s.

Intel Celeron N2940 Characteristic Intel Core2 Duo E6540
DDR3-1333 Memory DDR3-1333, DDR2-1066
8 GB Max. Memory 16 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 21.3 GB/s
No ECC No
-- L2 Cache 4.00 MB
2.00 MB L3 Cache --
2.0 PCIe version --
4 PCIe lanes --
2.0 GB/s PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the Intel Celeron N2940 is 7.5 W, while the Intel Core2 Duo E6540 has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Celeron N2940 Characteristic Intel Core2 Duo E6540
7.5 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
-- TDP up --
4.5 W TDP down --
100 °C Tjunction max. --

Technical details

The Intel Celeron N2940 is manufactured in 22 nm and has 2.00 MB cache. The Intel Core2 Duo E6540 is manufactured in 65 nm and has a 4.00 MB cache.

Intel Celeron N2940 Characteristic Intel Core2 Duo E6540
22 nm Technology 65 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions MMX, SSE, SSE2, SSE3
BGA 1170 Socket LGA 775
VT-x, VT-x EPT Virtualization VT-x
No AES-NI No
Windows 10, Linux Operating systems Windows 10, Linux
Q2/2014 Release date Q3/2007
-- Release price --
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 2 CPU benchmarks

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 Celeron N2940 Intel Celeron N2940
4C 4T @ 2.25 GHz
218 (64%)
Intel Core2 Duo E6540 Intel Core2 Duo E6540
2C 2T @ 2.33 GHz
342 (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 Celeron N2940 Intel Celeron N2940
4C 4T @ 2.25 GHz
730 (100%)
Intel Core2 Duo E6540 Intel Core2 Duo E6540
2C 2T @ 2.33 GHz
625 (86%)

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 Celeron N2940 Intel Celeron N2940
4C 4T @ 2.25 GHz
1035 (100%)
Intel Core2 Duo E6540 Intel Core2 Duo E6540
2C 2T @ 2.33 GHz
793 (77%)

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 Celeron N2940 Intel Celeron N2940
4C 4T @ 2.25 GHz
177 (100%)
Intel Core2 Duo E6540 Intel Core2 Duo E6540
2C 2T @ 2.33 GHz
0 (0%)

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 Celeron N2940 Intel Celeron N2940
4C 4T @ 2.25 GHz
526 (100%)
Intel Core2 Duo E6540 Intel Core2 Duo E6540
2C 2T @ 2.33 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 Celeron N2940 Intel Celeron N2940
Intel HD Graphics (Bay Trail GT1) @ 0.85 GHz
55 (100%)
Intel Core2 Duo E6540 Intel Core2 Duo E6540
@ 0.00 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 Celeron N2940 Intel Celeron N2940
4C 4T @ 2.25 GHz
38 (100%)
Intel Core2 Duo E6540 Intel Core2 Duo E6540
2C 2T @ 2.33 GHz
0 (0%)

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 Celeron N2940 Intel Celeron N2940
4C 4T @ 2.25 GHz
140 (100%)
Intel Core2 Duo E6540 Intel Core2 Duo E6540
2C 2T @ 2.33 GHz
0 (0%)

Devices using this processor

Intel Celeron N2940 Intel Core2 Duo E6540
Unknown Unknown

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