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Kingston HyperX KHX4000 (DDR500 – 250MHz) CL3.0

Pence per Megabyte - 23.85

Torture Test at 200MHz – Passed

Torture Test Overclocked - Passed

With its headquarters in Fountain Valley California, Kingston Technology Company carries the honour of being the world’s largest independent memory manufacturer.

The HyperX KHX4000 modules are rated to run at 225MHz at 2.6v 3-4-4. The modules carry a lifetime warranty. The memory chips used couldn’t be identified due to the pre-fitted heat-spreaders.

The supplied modules came fitted with matt finish blue heat spreaders and two silver retaining clips per module. The heat spreaders feature the Kingston logo and the HyperX brand name.

First Impressions

The matt blue heat spreaders with silver retaining clips looked very classy. Each one displays a screen-printed Kingston name and logo, the HyperX logo and a sticker featuring the part number, assembled in the USA declaration and voltage along with a colour-changing logo to prove its authenticity.

Testing – 200MHz

Rank When Tested on a Prescott CPU at 200MHz: 6th from 18

Rank When Tested on a Northwood CPU at 200MHz: 8th from 18

Considering the price of just 23.85p per Megabyte and operating at CL3.0, the performance levels at 200MHz were better than we’d expected, if not exactly class leading.

Testing – Overclocking

Maximum Frequency - Overclocked using SPD settings: 230MHz

Maximum Frequency - Overclocked using manual settings (CL-4-4-8) low ambient of 18c: 260MHz

Maximum Frequency - Overclocked using manual settings (CL-4-4-8) high ambient of 28c: 260MHz

Rank - overclocked performance (high ambient): 5th from 18

Only 230MHz at SPD was soon improved upon when we manually dialled in 3-4-4-8, although 2.8v were required to assure stability. The test system remained equally bombproof at 2.9v but with no further frequency increases to be had there was no point pushing things that far.


Overall Rank, all performance parameters included: Joint 5th from 18

The HyperX KHX4000 impressed from the start with a consistently creditable performance on both CPUs. 23.85p per Megabyte placed it at the cheaper end of the performance modules on test while the numbers saw it regularly in the top third of the results tables.

Perhaps not strong enough overall to be bothering the best we’ve seen in this roundup but certainly good enough to consider.

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