Intel Core i5-6400 vs Intel Core i7-2820QM

Compare Intel 6th Generation Core i5 4 core CPU vs Intel Core 4 core processor, specs and benchmark score. Which is the better CPU for gaming?

Benchmark Score
Other Benchmarks
Specifications
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Intel Core i7-2820QM

Price

The cheapest price from our partner retailers

$ 99.99

$ 129.96 significantly less expensive

$ 229.95

Benchmark Score

Overall Score

A combined score of all workloads

2127 points

2212 points

3% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

3959 points

13% slightly better gaming score

3474 points

Multitasking Score

Performance in workloads using up to 8 cores

1617 points

1842 points

13% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

1551 points

1774 points

14% slightly better heavy workload score

Free CPU Benchmark

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Other Benchmarks

Blender score

Cycles Render (Samples per minute)

39.92 points

48% significantly higher Blender score

26.94 points

Geekbench 5 (multi) score

Multi threaded benchmark

2948 points

145% significantly higher Geekbench 5 (multi) score

1202 points

Geekbench 5 (single) score

Single threaded benchmark

1079 points

107% significantly higher Geekbench 5 (single) score

520 points

Geekbench 6 (multi) score

Multi threaded benchmark

3046 points

87% significantly higher Geekbench 6 (multi) score

1622 points

Geekbench 6 (single) score

Single threaded benchmark

1116 points

115% significantly higher Geekbench 6 (single) score

519 points

Specifications

Cores

Number of physical processing units

Identical

Threads

Number of logical processing units

100% significantly more threads

Clock Speed

Base frequency at which the chip operates

2.7 GHz

17% slightly higher clock speed

2.3 GHz

Turbo Speed

Higher frequency used for heavy workloads

3.3 GHz

3.4 GHz

3% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

65 W

45 W

44% significantly lower TDP

PCIe Lanes

Number of physical connections between the CPU and expansion slots

Identical

Memory Channels

Lanes for simultaneous memory access

Identical

Supported Memory

Maximum amount of RAM supported by this CPU

64 GiB

100% significantly more supported memory

32 GiB

Other details

Rank

Ranking in the hardwareDB database

699th of 1,089

680th of 1,089

Family

The product line

6th Generation Core i5

Core

Release date

The official date of release of this chip

2015 August

2011 February

Memory Type

The type of memory used by this chip

DDR4-1866

DDR3-1066

Is Unlocked

Can this CPU can be overclocked

Supports ECC memory

Does this CPU support error correcting memory

Core i5-6400 vs Core i7-2820QM comparison

Our benchmark analysis concludes that the Core i7-2820QM performs better than the Core i5-6400. Despite this, the Core i5-6400 has the advantage in our gaming benchmark.

Info from our database shows that they both have the same core count but the Core i7-2820QM has more threads. With our hardware info, we find that the Core i5-6400 has a slightly higher clock speed than the Core i7-2820QM. Despite this, the Core i7-2820QM has a slightly higher turbo speed. The Core i7-2820QM outputs less heat than Core i5-6400 thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

Most CPUs have more threads than cores. This technology, colloquially called hyperthreading, improves performance by splitting a core into multiple virtual ones. This provides more efficient utilisation of a core. For instance, the Core i5-6400 has the same number of threads as cores. This means the the CPU does not support hyperthreading.