Intel Core i7-6650U vs Intel Core 2 Quad Q9400

Compare Intel 6th Generation Core i7 2 core CPU vs Intel Core 4 core processor, specs and benchmark score. Which is the better CPU for gaming?

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Benchmark Score

Overall Score

A combined score of all workloads

1184 points
1227 points
3% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

2342 points
2% slightly better gaming score
2282 points

Multitasking Score

Performance in workloads using up to 8 cores

881 points
933 points
5% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

844 points
895 points
6% slightly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i7-6650U and the Core 2 Quad Q9400? Download our free and quick PC Performance Test.

Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

21.68 points
46% significantly higher Blender score
14.84 points
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

1963 points
102% significantly higher Geekbench 5 (multi) score
970 points
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

931 points
170% significantly higher Geekbench 5 (single) score
344 points
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

2036 points
117% significantly higher Geekbench 6 (multi) score
935 points
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1001 points
197% significantly higher Geekbench 6 (single) score
337 points

Specifications

Cores

Number of physical processing units

2
4
100% significantly more cores

Threads

Number of logical processing units

4
Identical
4

Clock Speed

Base frequency at which the chip operates

2.2 GHz
2.66 GHz
20% slightly higher clock speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

15 W
533% significantly lower TDP
95 W

Other details

Rank

Ranking in the hardwareDB database

903rd of 1,089
894th of 1,089

Family

The product line

6th Generation Core i7
Core

Release date

The official date of release of this chip

2015 August
2008 August

Memory Type

The type of memory used by this chip

DDR4-2133
-

Supports ECC memory

Does this CPU support error correcting memory

No
-

Core i7-6650U vs Core 2 Quad Q9400 benchmarks

According to the hardwareDB Benchmark tool, the Core 2 Quad Q9400 is faster than the Core i7-6650U. Despite this, the Core i7-6650U has the advantage in our gaming benchmark.

When comparing core counts for these CPUs, we notice that the Core 2 Quad Q9400 has significantly more cores with 4 cores compared to the Core i7-6650U that has 2 cores. But they both have the same number of threads. These CPUs have different clock speeds. Indeed, the Core 2 Quad Q9400 has a slightly higher clock speed compared to the Core i7-6650U. A Core i7-6650U CPU outputs less heat than a Core 2 Quad Q9400 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. Indeed, the Core i7-6650U has more threads than cores. Each physical core is split into multiple threads.

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