Rock Xtreme 840SLI


Rock Xtreme 840SLINotebook: Rock Xtreme 840SLI
Processor: Intel Core 2 Extreme X9100
Graphics Adapter: NVIDIA GeForce GTX 280M SLI
Display: 18.4 inch, 16:10, 1920x1080 pixels, glossy: yes
Weight: 6kg
Price: 4200 euro
Sold in: UK
Average Score: 65% - average
Average of 2 scores (from 3 reviews)
price: 47%, performance: 87%, features: 80%, display: - % mobility: - %, workmanship: - %, ergonomy: 60%, emissions: - %

Reviews for the Rock Xtreme 840SLI

60% Rock Notebook Xtreme 840
Source: Gadgetspeak English
Rock notebooks are built to order, so delivery time is normally around a week. Here I am looking at what would definitely be a top of the range unit, very powerful and rather expensive, it is all but £3000 and today that is not cheap. 
Single Review, online available, Short, Date: 02/03/2010
Rating: Total score: 60% price: 20% performance: 80% features: 80% ergonomy: 60%
Rock - Xtreme X840SLI-X9100 review
Source: IT Reviews English
We did an initial field test with Rock's new Xtreme X840SLI-X9100 desktop replacement laptop, using an 18 year-old female online gamer and a 30 year-old male Xbox 360 addict. We opened the lid, turned on the power and within seconds got the identical awed response that went something along the lines of, “Whoa, that is soooo cool!” There's no question that Rock's new hardcore gaming laptop will be heaven sent for serious gamers who want the latest and best from Nvidia's graphics arsenal, yet flashy lights don't make for responsive controls, despite the welcome macro buttons. The price tag is high, but you'll get a reaction (and probably arm strain) wherever you take it.
Single Review, online available, Short, Date: 10/05/2009
Rating: price: 60% performance: 80%
70% Rock Xtreme 840SLI-X9100
Source: Trusted Reviews English
With gaming laptops there's often a fine line between portability and power, but Rock's Xtreme 840SLI-X9100 falls firmly into the latter camp. This behemoth is most definitely a 'desktop replacement' in the truest sense of the term, as with a starting weight of six kilos (plus another 1.2kg for the power brick) it has the distinct honour of being the heaviest gaming laptop to have graced our labs - not counting the multimedia-oriented HP Pavilion HDX9095EA. It's big in every way, but despite its excellent Full HD screen, some innovative features and stonking performance in games, there are enough niggles to hold Rock's Xtreme 840SLI-X9100 back from coming recommended.
Single Review, online available, Medium, Date: 08/13/2009
Rating: Total score: 70% price: 60% performance: 100% features: 80%



Two GeForce GTX 280M graphics cards in SLI combination. The performance is about 0-40% faster than a single GTX 280M, depending on the application. Due to the SLI setup, users may experience micro stuttering, especially in the 30fps range.

These graphics cards are able to play the latest and most demanding games in high resolutions and full detail settings with enabled Anti-Aliasing.

» Further information can be found in our Comparison of Mobile Graphics Cards and the corresponding Benchmark List.

Intel Core 2 Extreme: The fastest Core 2 Duo variants of Intel are called Core 2 Extreme. Technically, these processors are based on a Merom/Penryn (X9000) core like all other Core 2 Duo  processors,  too.


The X9100 is the fastest dual-core of the Core 2 series and thanks to a free multiplicator can be overclocked easily. Later the expensive X9100 was substituted by the cheaper and more power saving T9900 (with a fixed multiplicator).

» Further information can be found in our Comparison of Mobile Processsors.

18.4": 18 inch display size is a rare and very big size for desktop-replacement laptops. Laptops with 18 inch displays did not exist before 2008. The DTR-laptops can't be carried easily, need much energy but on the other side texts can be read easily and high resolutions are no problem. DTR mainly are intended for stationary usage on desks, where the weight and the energy need are unimportant.
» To find out how fine a display is, see our DPI List.

6 kg: This laptop is heavy. Especially desktop replacements with 19 inch display fit in this class of weight. This class is too heavy, even for 17 inch DTR.

Rock: Rock is a British laptop manufacturer and focusses the UK market.

65%: Such a bad rating is rare. There exist hardly any notebooks, which are rated worse.

» Further information can be found in our Notebook Purchase Guide.

Devices from a different Manufacturer and/or with a different CPU

» Malibal Veda
Core 2 Duo P8700
» mySN XMG8
Core 2 Duo T6500

Devices with the same GPU and/or Screen Size

» Cyber System QX18
Core 2 Duo T9900, 5.35 kg

Devices with the same GPU

» Alienware M17x
Core 2 Extreme QX9300, 17.0", 5.75 kg

Devices with Same Screen Size and/or Weight

» Alienware M18x R2, GTX 680M SLI, Core i7-3820QM
GeForce GTX 680M SLI, Core i7 3820QM
» Alienware M18x R2
Radeon HD 7970M Crossfire, Core i7 3920XM
» Eurocom Leopard 2.0
Radeon HD 6990M, Core i7 2960XM
» Schenker XMG P801 PRO
GeForce GTX 560M SLI, Core i7 2760QM
» Alienware M18x (GTX 580M SLI, 2920XM)
GeForce GTX 580M SLI, Core i7 2920XM
» Alienware M18x
Radeon HD 6970M Crossfire, Core i7 2920XM
» Cryo Libri Iceni
GeForce GTX 285M SLI, Core i7 940XM
» mySN XMG P800
Mobility Radeon HD 5870 Crossfire, Core i7 740QM
» Origin PC EON18
GeForce GTX 280M, Core 2 Duo P8700
» Eurocom M98NU
GeForce GTX 280M, Core 2 Duo T9900
» Novatech X1 PRO
GeForce GTX 280M, Core 2 Duo T9900
» Asus W90Vp
Mobility Radeon HD 4870 X2, Core 2 Quad Q9000

Devices from the same Manufacturer

» Rock Xtreme 685-I5-2540M
Radeon HD 6990M, Core i5 2540M, 15.6", 3.1 kg
» Rock Xtreme 786-I7-2630
GeForce GTX 485M, Core i7 2630QM, 17.3", 3.9 kg
» Rock Xtreme 685-I7-2820QM
Radeon HD 6970M, Core i7 2820QM, 15.6", 3 kg
» Rock Xtreme X790-I7-920
GeForce GTX 280M, Core i7 (Desktop) 920, 17.0", 5.4 kg
» Rock Pegasus 210
Graphics Media Accelerator (GMA) 950, Mobile A A110, 12.0", 1.2 kg
» Rock Xtreme 780
GeForce 9800M GTX, Core 2 Extreme QX9300, 17.0", 3.8 kg
» Rock Xtreme 620
GeForce 9800M GT, Core 2 Duo T9600, 15.4", 3.2 kg
» Rock Xtreme SL8-9550
GeForce 9800M GTX SLI, Core 2 Quad (Desktop) Q9550, 17.0", 5.3 kg
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> Notebook / Laptop Reviews and News > Library > Rock > Rock Xtreme 840SLI
Author: Stefan Hinum, 2009-08-28 (Update: 2012-05-26)