Introducing the CyberPowerPC Gamer Xtreme 4000

We last checked in with CyberPowerPC's gaming desktop division when we reviewed the Gamer Xtreme 8500, which packed a beefy Intel Core i7-875K overclocked to 3.8GHz alongside two NVIDIA GeForce GTS 450s in SLI. Our feelings were decidedly mixed: while it was certainly fast enough, the gulf between the quoted price tag and the actual price along with the hack overclocking job made us question the system's value. Now CyberPowerPC has sent us a gaming desktop with the reasonably new NVIDIA GeForce GTX 570 and a brand spanking new Intel Core i7-2600K that features the highest clock speed of any processor we've ever tested in a system.

Knowing the new Intel Core i7 based on the Sandy Bridge microarchitecture is one of the fastest processors you can buy, what happens when we take the best clock-for-clock performance on the market and crank it up to 4.4GHz?

CyberPowerPC Gamer Xtreme 4000 Specifications
Processor Intel Core i7-2600K @ 4.4GHz (100MHz Bclk with x44 multiplier)
(spec: 4x3.4GHz, 32nm, 8MB L3, 95W)
Motherboard ASUS P8P67 Motherboard with P67 chipset
Memory 2x2GB Kingston HyperX DDR3-1600 @ 1600MHz (expandable to 16GB)
Graphics eVGA SuperClocked NVIDIA GeForce GTX 570 1280MB GDDR5
(480 CUDA Cores, 797/1594MHz Core/Shader, 3.9GHz RAM, 320-bit memory bus)
Hard Drive(s) Western Digital Caviar Black 1TB 7200RPM SATA 6Gbps
Optical Drive(s) ASUS BD-ROM/DVD+/-RW Combo Drive
Networking Intel Gigabit Ethernet
Bluetooth 2.1+EDR
Audio Realtek ALC892 HD Audio
Speaker, mic, line-in, and surround jacks for 7.1 sound
Digital and optical out
Front Side Optical Drive
2x USB 2.0
Headphone and mic jacks
USB 3.0
MMC/SD/CF/MS reader
Top -
Back Side 2x PS/2
Digital and optical out
2x eSATA
6x USB 2.0
6-pin FireWire
2x USB 3.0
Speaker, mic, line-in, and surround jacks for 7.1 sound
Operating System Windows 7 Home Premium 64-bit
Dimensions 19.7" x 18.9" x 8.3" (WxDxH)
Weight 15.7 lbs (case only)
Extras Corsair 650TX Power Supply
Asetek 510LC Liquid Cooling
Thermaltake Armor A60 Case
Flash reader (MMC/MS/CF/SD)
Overclocked from warehouse
Warranty 3-year limited warranty and lifetime phone support
Pricing Quoted Price: $1,399

The elephant in the room is the overclocked Intel Core i7-2600K. Built on a 32nm fabrication process, it's Intel's new top of the line mainstream processor using the Sandy Bridge microarchitecture and features 8MB of L3 cache and a nominal turbo speed of 3.8GHz. Given the changes in how Sandy Bridge chips are overclocked, the unlocked multiplier is necessary to get the most out of these new processors. CyberPower has accordingly ramped the turbo multiplier to 44x, yielding a final turbo speed of a staggering 4.4GHz. The new i7 is cooled using CyberPower's standard Asetek 510LC liquid cooling which keeps idle temperatures extremely low.

Supporting the i7-2600K is Intel's new P67 chipset, which features both SATA 6Gbps and 3Gbps connectivity, the former of which is connected to the bog standard Western Digital Caviar Black 1TB drive. The chipset and processor only support dual channel memory, resulting in a board maximum of 16GB of DDR3; the 4GB of Kingston HyperX installed runs at a very healthy 1600MHz. The rest of the motherboard offers all of the modern connectivity you could ask for, including an interesting surprise in the form of integrated bluetooth.

Finally we also have the SuperClocked model of eVGA's NVIDIA GeForce GTX 570. In our review of the GTX 570 we found it to be about as fast as the former king of the hill GeForce GTX 480. Not too shabby, and now with eVGA's SuperClocked model we see a 60MHz bump in core clock (resulting in an effective 120MHz boost on the shader clock); memory speed is unchanged. Nonetheless, the 570 also sports a healthy 480 of NVIDIA's CUDA cores along with improved thermals and power consumption over the previous generation.

Rounding things out are a blu-ray reader/DVD writer combo drive and a respectable if unexciting Thermaltake Armor A60 case. A nice surprise comes in the form of the Corsair 650TX power supply, generally regarded as one of the best brands on the market. 

Application and Futuremark Performance
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  • JarredWalton - Tuesday, January 4, 2011 - link

    I believe the overclock applies to all the Turbo modes. So the 4.4GHz is for single-threaded, and you'd get lower than that for dual-core/multi-core operation. Intel didn't specifically list the Turbo states for the desktop chips (see my SNB Mobile article for comparison, where they explicitly list what SC, DC, and QC can Turbo up to), but if they do something similar to the mobile parts then you should still see up to ~4.0GHz even when loading all four cores.
  • JarredWalton - Tuesday, January 4, 2011 - link

    Edit: Okay, maybe this is the correct info from a different slide. Intel appears to state that on the desktop CPUs, Max Turbo is +4 bins for SC, +3 bins for DC, +2 bins for TC, and +1 bin for QC. That means if you set the Max Turbo to 4.4GHz, quad-core could still hit 4.1GHz (assuming temperatures are acceptable).
  • Stuka87 - Tuesday, January 4, 2011 - link

    Hmm, ok. Still seams a bit confusing the way they have it written. If its +1 but for QC, wouldn't that mean 1 bin up from the base clock? So if you over clocked the turbo from 3.8 to 4.4 thats effectively 600MHz, so 600Mhz over 3.4GHz is 4GHz?
  • JarredWalton - Tuesday, January 4, 2011 - link

    Yeah, that's what I'm not sure about. Can you raise the max Turbo for SC/DC/TC/QC separately? I don't think so, but I don't have any desktop hardware so I can't say for sure. It would make more sense to have the DC/TC/QC Turbo be Max - 1/2/3 in my book. I believe there's also some stuff in the BIOS where you can set the thermal/power range on the CPU (Ian mentioned this in the ASRock mobo review I think? Or maybe it was Anand's article....) I guess right now I'm stuck looking for information as well, while I long for SNB hardware other than the notebook I got. :-)
  • cyberpowerpc - Tuesday, January 4, 2011 - link

    Just to clarify some concerns regarding the OC:

    The 4.4 GHz OC is modest for Sandy Bridge. We could have easily shipped a 4.8/4.9 GHz system but feel that we did not want to ship a system with an Overclock that we, in the end, may not support.

    Additionally, for the max turbo ratio, you can individually set what the DC/TC/QC turbo. In the review system, the max turbo ratio was set to x44 and that applies to DC/TC/QC.
  • 7Enigma - Tuesday, January 4, 2011 - link

    Thank you for the reply, but what you are basically saying is you chose a single (modest) multiplier and put it for all DC/TC/QC values. Why would you choose the same number when the thermals should be vastly different (ie DC multiplier should be significantly higher than the QC multiplier)?

    I think you just confirmed how basic this "OC" really was.
  • Stuka87 - Tuesday, January 4, 2011 - link

    Thanks for replying. It clears up the question that I had regarding the various turbo speeds.

    However, why not set the turbo speed for DC to a higher level than TC or QC? It should be easily doable from a thermal standpoint, unless testing showed this to not be true and/or some other issue came up.

    I understand not wanting to go too far and then not be able to support it, that makes perfect sense from your point of view. however.
  • MeanBruce - Tuesday, January 4, 2011 - link

    Sandy-M LGA-1055 does seem amazing, yet for those who don't know Sandy-E LGA-2011 is due in July. Native USB 3.0, LightPeak support, the new X-68 chipset, Quad-Channel memory, integrated north bridge, now that's worth waiting 6months for! The enthusiast platform CPU, Mainboard, and Memory, should cost only $200 to $250 more, well worth the investment!
  • JarredWalton - Tuesday, January 4, 2011 - link

    I didn't think X68 (or whatever) was slated to get USB3.0, though I haven't really looked into that I admit. LightPeak might be nice though.
  • strikeback03 - Wednesday, January 5, 2011 - link

    According to Anand's article, SNB-E won't be until Q4, i.e. October at the earliest

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