Intel Pentium B940 vs Intel Core i5-2550k

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CPU comparison with benchmarks


Intel Pentium B940 CPU1 vs CPU2 Intel Core i5-2550k
Intel Pentium B940 Intel Core i5-2550k

CPU comparison

Intel Pentium B940 or Intel Core i5-2550k - 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 Pentium B940 has 2 cores with 2 threads and clocks with a maximum frequency of 2.00 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Pentium B940 was released in Q2/2011.

The Intel Core i5-2550k has 4 cores with 4 threads and clocks with a maximum frequency of 3.80 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Core i5-2550k was released in Q1/2012.
Intel Pentium (150) Family Intel Core i5 (328)
Intel Pentium 900 (10) CPU group Intel Core i 2000 (28)
3 Generation 2
Sandy Bridge U Architecture Sandy Bridge S
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor Intel Core i5-3570K

CPU Cores and Base Frequency

The Intel Pentium B940 is a 2 core processor with a clock frequency of 2.00 GHz. The Intel Core i5-2550k has 4 CPU cores with a clock frequency of 3.40 GHz (3.80 GHz).

Intel Pentium B940 Characteristic Intel Core i5-2550k
2 Cores 4
2 Threads 4
normal Core architecture normal
No Hyperthreading No
No Overclocking ? Yes
2.00 GHz Frequency 3.40 GHz
-- Turbo Frequency (1 Core) 3.80 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 Pentium B940 Characteristic Intel Core i5-2550k
-- 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.

Intel HD Graphics (Sandy Bridge GT1) GPU no iGPU
0.65 GHz GPU frequency --
1.10 GHz GPU (Turbo) --
6 GPU Generation --
32 nm Technology
2 Max. displays
6 Compute units --
48 Shader --
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory --
10.1 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 (Sandy Bridge 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
No Codec JPEG No

Memory & PCIe

The Intel Pentium B940 supports a maximum of 16 GB of memory in 2 memory channels. The Intel Core i5-2550k can connect up to 32 GB of memory in 2 memory channels.

Intel Pentium B940 Characteristic Intel Core i5-2550k
DDR3-1066, DDR3-1333 Memory DDR3-1333
16 GB Max. Memory 32 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 21.3 GB/s
No ECC No
-- L2 Cache --
2.00 MB L3 Cache 6.00 MB
2.0 PCIe version 2.0
16 PCIe lanes 16
8.0 GB/s PCIe Bandwidth 8.0 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Pentium B940 has a TDP of 35 W, that of the Intel Core i5-2550k is 95 W.

Intel Pentium B940 Characteristic Intel Core i5-2550k
35 W TDP (PL1 / PBP) 95 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
85 °C Tjunction max. --

Technical details

The Intel Pentium B940 has a 2.00 MB cache, while the Intel Core i5-2550k cache has a total of 6.00 MB.

Intel Pentium B940 Characteristic Intel Core i5-2550k
32 nm Technology 32 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions SSE4.1, SSE4.2, AVX
PGA 988 Socket LGA 1155
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q2/2011 Release date Q1/2012
-- Release price 235 $
show more data show more data


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 Pentium B940 Intel Pentium B940
2C 2T @ 2.00 GHz
387 (48%)
Intel Core i5-2550k Intel Core i5-2550k
4C 4T @ 3.80 GHz
810 (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 Pentium B940 Intel Pentium B940
2C 2T @ 2.00 GHz
739 (28%)
Intel Core i5-2550k Intel Core i5-2550k
4C 4T @ 3.40 GHz
2611 (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 Pentium B940 Intel Pentium B940
2C 2T @ 2.00 GHz
347 (52%)
Intel Core i5-2550k Intel Core i5-2550k
4C 4T @ 3.80 GHz
664 (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 Pentium B940 Intel Pentium B940
2C 2T @ 2.00 GHz
617 (31%)
Intel Core i5-2550k Intel Core i5-2550k
4C 4T @ 3.40 GHz
2010 (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 Pentium B940 Intel Pentium B940
2C 2T @ 2.00 GHz
856 (21%)
Intel Core i5-2550k Intel Core i5-2550k
4C 4T @ 3.40 GHz
4120 (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 Pentium B940 Intel Pentium B940
Intel HD Graphics (Sandy Bridge GT1) @ 1.10 GHz
106 (100%)
Intel Core i5-2550k Intel Core i5-2550k
@ 0.00 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 Pentium B940 Intel Pentium B940
2C 2T @ 2.00 GHz
363 (100%)
Intel Core i5-2550k Intel Core i5-2550k
4C 4T @ 3.40 GHz
0 (0%)

Devices using this processor

Intel Pentium B940 Intel Core i5-2550k
Unknown Unknown

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