Intel Core i7-4558U vs Intel Xeon E5-2603

Compare Intel 4th Generation Core i7 2 core CPU vs Intel Xeon E5 Family 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

15 %
7% slightly better overall score
14 %

Gaming Score

The raw gaming performance with a fast GPU

30 %
25% slightly better gaming score
24 %

Multitasking Score

Performance in workloads using up to 8 cores

11 %
11 %

Heavy Workload Score

Performance in workloads using up to 16 cores

11 %
10% slightly better heavy workload score
10 %

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Number of physical processing units

100% significantly more cores


Number of logical processing units


Clock Speed

Base frequency at which the chip operates

3 GHz
55% significantly higher clock speed
2 GHz


Thermal Design Power: Measure of heat generated by the CPU

28 W
185% significantly lower TDP
80 W

PCIe Lanes

Number of physical connections between the CPU and expansion slots

233% significantly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

100% significantly more memory channels

Supported Memory

Maximum amount of RAM supported by this CPU

16 GiB
384 GiB
2299% significantly more supported memory

Other details


Ranking in the hardwareDB database

955th of 1,337
1,001st of 1,337


The product line

4th Generation Core i7
Xeon E5 Family

Release date

The official date of release of this chip

August 2013
February 2012

Memory Type

The type of memory used by this chip


Supports ECC memory

Does this CPU support error correcting memory


Core i7-4558U vs Xeon E5-2603 comparison

In our benchmarks, the Core i7-4558U beats the Xeon E5-2603 in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Xeon E5-2603 in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Xeon E5-2603 has significantly more cores than the Core i7-4558U. Indeed, the Xeon E5-2603 has 4 cores compared to 2 cores found in the Core i7-4558U. But they both have the same number of threads. With our hardware info, we find that the Core i7-4558U has a significantly higher clock speed than the Xeon E5-2603. A Core i7-4558U CPU outputs less heat than a Xeon E5-2603 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 i7-4558U has more threads than cores. Each physical core is split into multiple threads.


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