Intel Celeron J3455 vs Intel Core i7-840QM

Compare Intel Celeron J Series 4 core CPU vs Intel Core 4 core processor, specs and benchmark score. Which is the better CPU for gaming?

CPU Comparison

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Benchmark Score

Overall Score

A combined score of all workloads

10 %
Identical
10 %

Gaming Score

The raw gaming performance with a fast GPU

18 %
38% slightly better gaming score
13 %

Multitasking Score

Performance in workloads using up to 8 cores

7 %
9 %
28% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

7 %
8 %
14% slightly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Celeron J3455 and the Core i7-840QM? Download our free and quick PC Performance Test.

Other Benchmarks

Geekbench (multi) score

Multi threaded benchmark

986
1,251
26% slightly higher Geekbench (multi) score

Geekbench (single) score

Single threaded benchmark

290
408
40% slightly higher Geekbench (single) score

Specifications

Cores

Number of physical processing units

4
Identical
4

Threads

Number of logical processing units

4
8
100% significantly more threads

Clock Speed

Base frequency at which the chip operates

2 GHz
2 GHz
24% slightly higher clock speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

10 W
350% significantly lower TDP
45 W

PCIe Lanes

Number of physical connections between the CPU and expansion slots

6
16
166% significantly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

Supported Memory

Maximum amount of RAM supported by this CPU

8 GiB
Identical
8 GiB

Other details

Rank

Ranking in the hardwareDB database

1,135th of 1,337
1,125th of 1,337

Family

The product line

Celeron J Series
Core

Release date

The official date of release of this chip

August 2016
August 2010

Memory Type

The type of memory used by this chip

DDR3-1866
DDR3-1066

Supports ECC memory

Does this CPU support error correcting memory

No
No

Celeron J3455 vs Core i7-840QM benchmarks

Our benchmark analysis concludes that the Core i7-840QM performs better than the Celeron J3455. Despite this, the Celeron J3455 has the advantage in our gaming benchmark.

Our spec comparison shows that they have an identical amount of cores but the Core i7-840QM has more threads. Our comparison shows that the Core i7-840QM has a slightly higher clock speed compared to the Celeron J3455. A Celeron J3455 CPU outputs less heat than a Core i7-840QM CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

Modern CPUs generally have more logical cores than physical cores, this means that each core is split into multiple virtual cores, improving efficiency for parallel workloads. For instance, the Celeron J3455 has the same number of threads as cores. This means the the CPU does not support hyperthreading.

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