Intel Core i5-650 vs Intel Pentium E5400

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CPU comparison with benchmarks


Intel Core i5-650 CPU1 vs CPU2 Intel Pentium E5400
Intel Core i5-650 Intel Pentium E5400

CPU comparison

Intel Core i5-650 or Intel Pentium E5400 - 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 Core i5-650 has 2 cores with 4 threads and clocks with a maximum frequency of 3.46 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Core i5-650 was released in Q1/2010.

The Intel Pentium E5400 has 2 cores with 2 threads and clocks with a maximum frequency of 2.70 GHz. The CPU supports up to 16 GB of memory in 2 memory channels. The Intel Pentium E5400 was released in Q1/2009.
Intel Core i5 (331) Family Intel Pentium (150)
Intel Core i5 600 (6) CPU group Intel Pentium E5000/E6000 (13)
1 Generation 2
Clarkdale Architecture Wolfdale (Penryn)
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core i5-650 has 2 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Core i5-650 is 3.20 GHz (3.46 GHz) while the Intel Pentium E5400 has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the Intel Pentium E5400 is at 2.70 GHz.

Intel Core i5-650 Characteristic Intel Pentium E5400
2 Cores 2
4 Threads 2
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? Yes
3.20 GHz Frequency 2.70 GHz
3.46 GHz Turbo Frequency (1 Core) --
-- Turbo Frequency (All Cores) --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

Intel Core i5-650 Characteristic Intel Pentium E5400
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The Intel Core i5-650 or Intel Pentium E5400 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 (Westmere) GPU no iGPU
0.50 GHz GPU frequency --
0.73 GHz GPU (Turbo) --
5 GPU Generation --
32 nm Technology
2 Max. displays
12 Compute units --
24 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 (Westmere) GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
Decode Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIe

The Intel Core i5-650 can use up to 16 GB of memory in 2 memory channels. The maximum memory bandwidth is 21.3 GB/s. The Intel Pentium E5400 supports up to 16 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 21.3 GB/s.

Intel Core i5-650 Characteristic Intel Pentium E5400
DDR3-1066, DDR3-1333 Memory DDR3-1333, DDR2-800
16 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
0.50 MB L2 Cache 2.00 MB
4.00 MB L3 Cache --
2.0 PCIe version --
16 PCIe lanes --
8.0 GB/s PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the Intel Core i5-650 is 73 W, while the Intel Pentium E5400 has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Core i5-650 Characteristic Intel Pentium E5400
73 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Intel Core i5-650 is manufactured in 32 nm and has 4.50 MB cache. The Intel Pentium E5400 is manufactured in 45 nm and has a 2.00 MB cache.

Intel Core i5-650 Characteristic Intel Pentium E5400
32 nm Technology 45 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
LGA 1156 Socket LGA 775
VT-x, VT-x EPT, VT-d Virtualization VT-x
Yes AES-NI No
Windows 10, Linux Operating systems Windows 10, Linux
Q1/2010 Release date Q1/2009
177 $ Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Core i5-650 to help other visitors make their purchasing decisions. The average rating is 4.0 stars (2 ratings). Rate now:
Here you can rate the Intel Pentium E5400 to help other visitors make their purchasing decisions. The average rating is 1.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Core i5-650 (100%)
Intel Pentium E5400 (65%)
⌀ Multi core performance in 3 CPU benchmarks
Intel Core i5-650 (100%)
Intel Pentium E5400 (52%)

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 Core i5-650 Intel Core i5-650
2C 4T @ 3.46 GHz
564 (100%)
Intel Pentium E5400 Intel Pentium E5400
2C 2T @ 2.70 GHz
368 (65%)

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 Core i5-650 Intel Core i5-650
2C 4T @ 3.20 GHz
1252 (100%)
Intel Pentium E5400 Intel Pentium E5400
2C 2T @ 2.70 GHz
658 (53%)

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 Core i5-650 Intel Core i5-650
2C 4T @ 3.20 GHz
2221 (100%)
Intel Pentium E5400 Intel Pentium E5400
2C 2T @ 2.70 GHz
951 (43%)

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 Core i5-650 Intel Core i5-650
2C 4T @ 3.20 GHz
735 (100%)
Intel Pentium E5400 Intel Pentium E5400
2C 2T @ 2.70 GHz
436 (59%)

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 Core i5-650 Intel Core i5-650
Intel HD Graphics (Westmere) @ 0.73 GHz
35 (100%)
Intel Pentium E5400 Intel Pentium E5400
@ 0.00 GHz
0 (0%)

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 Core i5-650 Intel Core i5-650
2C 4T @ 3.46 GHz
246 (100%)
Intel Pentium E5400 Intel Pentium E5400
2C 2T @ 2.70 GHz
0 (0%)

Devices using this processor

Intel Core i5-650 Intel Pentium E5400
Unknown Unknown

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