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MSI X299 Gaming Pro Carbon AC / Intel i7-7800X Build

by BoyScout



Date Published

June 27, 2017

Date Built

June 16, 2017

CPU Clock Rate

4.011 GHz

CPU Temperature While Idle

27.0° C

CPU Temperature Under Load

55.0° C

GPU Core Clock Rate

1.936 GHz

GPU Effective Memory Clock Rate

11.016 GHz

GPU Temperature While Idle

48.0° C

GPU Temperature Under Load

79.0° C


For the Intel X299 release, MSI sent us their new X299 Gaming Pro Carbon AC motherboard with custom cover plates as well as an Intel i7-7800X processor. To help keep the processor running cool, we used Fractal Design's recently released Celsius S36 CPU cooler.

You can watch our build video to see how it all came together and check below for our stock and overclocked benchmark results.

A big thanks to MSI for providing the motherboard, processor and video card as well as to Fractal Design for providing the CPU cooler used in this build.

And now, some benchmarks:

Stock Results

First off, we ran everything at stock clocks and settings except for enabling the Extreme Memory Profile (XMP). With the default CPU clock settings, the i7-7800X runs at 3.5GHz with a max turbo speed of 4 GHz. Under that setup, here's what we saw:

Detail Value
CPU Clock Rate 4.0 GHz
CPU Temperature while Idle 27C
CPU Temperature under Load 55C
Benchmark Score Graphics Score Physics Score CPU Score
TimeSpy v1.0 9422 9986 N/A 7140
FireStrike Ultra v1.1 7063 7047 17435 N/A
FireStrike Extreme 1.1 13060 14127 17531 N/A
Cinebench R15 CPU 1313
Cinebench R15 OpenGL 136.20 fps
Game Settings Resolution Average FPS CPU Usage GPU Usage
Battlefield 1 Ultra 2560x1440 129.6 fps 47.3% 96.4%
Battlefield 1 High 2560x1440 137.9 fps 50.5% 94.4%
Battlefield 1 Ultra 3840×2160 76.18 fps 38.1% 99%
Battlefield 1 High 3840×2160 83.25 fps 39.8% 98.8%
Overwatch Epic 2560x1440 176 fps 33.6% 98.7%
Overwatch Epic 3840×2160 93 fps 22% 99%
Ghost Recon: Wildlands Ultra 2560x1440 60.89 fps 31.8% 97.9%
Ghost Recon: Wildlands Very High 2560x1440 88.73 fps 29.2% 97.9%
Ghost Recon: Wildlands Ultra 3840×2160 39.31 fps 20.4% 98.9%
Ghost Recon: Wildlands Very High 3840×2160 54.91 fps 23.8% 98.8%
Rainbow Six Siege Ultra 2560x1440 173.5 fps
Rainbow Six Siege Ultra 3840×2160 93.6 fps
Rainbow Six Siege High 3840×2160 104.5 fps

Overclock Results

We used the motherboard's "Game Boost" feature to overclock the CPU. It offers 7 settings beyond the stock level (labeled 1, 2, 4, 6, 8, 10 and 11) and we were able to get stable results on all but the highest level. With Game Boost set to "10", the i7-7800X operates at 4.6GHz. Here are our results with those settings:

Detail Value
CPU Clock Rate 4.600 GHz
CPU Temperature while Idle 28C
CPU Temperature under Load 89C
M.2 SSD Temperature while Idle 33C
M.2 SSD Temperature under Load 42C
Benchmark Score Graphics Score Physics Score CPU Score
TimeSpy v1.0 9630 10000 N/A 7965
FireStrike Ultra v1.1 7150 7096 19326 N/A
FireStrike Extreme 1.1 13466 14350 19875 N/A
FireStrike v1.1 22228 29284 19945 N/A
Cinebench R15 CPU 1483
Cinebench R15 OpenGL 157.94 fps

Comments Sorted by:

Gentleman00 2 Builds 4 points 22 months ago

That GPU sag doesn't look very good.....

[comment deleted by staff]
BoyScout staff submitter 21 Builds 4 points 22 months ago

So that's on me -- usually if I notice connecting the cable will cause a bend, we'll shoot it with Ryan using one hand to hold it steady from below (though it can be quite tricky to film that and not block what's actually happening). We filmed this video pretty fast and unfortunately I didn't notice the notable pressure there as well as with the 24-pin cable until editing, so we didn't get a better take.

That said, I don't think that has much to do with the sag. The card itself is pretty heavy thanks to it's pretty substantial block/cooler.

Hector1908 9 Builds 1 point 22 months ago

You can attach the cables before or after it will sag the same . The card is 320mm long , those cards are just heavy . . I always attach the cables after and sometime is sagging and sometime it doesn't . Depend on the mobo psi slots , weight of the card and all that ... Great build btw .

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ixironshadowxi 2 points 22 months ago

Build description is awesome, nice build!

BoyScout staff submitter 21 Builds 3 points 22 months ago

Thanks, glad you enjoyed it!

NovaTastical 2 points 21 months ago

Can we have comparison gaming benchmarks? Like compared to other CPUs to see which ones the best on the X299 CPUs?

BoyScout staff submitter 21 Builds 2 points 21 months ago

Our results showed that the CPU was barely taxed for the gaming scenarios we threw at it. We were limited by the power/temperature targets we had set on the GPU.

So are you looking for a comparison to other X299 CPUs? Or compared to a similar Z270 builds?

NovaTastical 1 point 21 months ago

Both if possible

butcherpete16 2 points 21 months ago

It seems your CPU Temperature under Load at 89C is rather high. Can you comment on what you mean by "under load?" Some other sources I've read have suggested not to go regularly above 75C and I would like to hear your opinion on it.

Thank you

BoyScout staff submitter 21 Builds 2 points 21 months ago

That was the load temperature while running the maximum overclock we were able to keep stable. The non-overclocked load temp was only 55C (as noted in the build details side bar).

The "under load" temperature we report from manual benchmark testing of our video builds at the moment is usually the highest temperature reached while running the 3DMark suite of synthetic benches. However, if we see higher temps during game play bench testing, we note those as well.

Thanks for your feedback!

alexmorgan202 2 points 21 months ago

Nice build! I'm thinking about making a build with one of these processors, but I'm split between the 7740X and the 7800X. I know the 7740 has higher GHz, but less cores and I'm not sure which I should get if I am looking to game.

Here's what I have now: https://pcpartpicker.com/list/cPtJ9W

Thanks for your help!

BoyScout staff submitter 21 Builds 3 points 21 months ago

So the downside of switching to the 7740X is that it's only has 16 PCIe lanes versus the 7800X's 28 lanes. It also only supports two channels for DDR-4 memory instead of 4. For $40, it's a pretty massive feature downgrade from the 7800X, beyond the core count drop (quite a few motherboard features get disabled with a 16-lane CPU on these boards). If you're after CPU intensive operations, the 7800X can represent a pretty good deal.

That said, if you're really looking at a 7740X-level performance just for gaming (and don't have some other particular reason to buy in to the X299 platform), you might just want to consider a Z270 platform / i7-7700K-based system. You'll get essentially the same gaming performance and save a great deal on the budget.

darkshadoku 1 Build 2 points 21 months ago

What about a 7800x or 7820x for pure gaming performance and possibly some streaming? and SLI if possible.

BoyScout staff submitter 21 Builds 1 point 21 months ago

So the 7800X definitely handled everything (at stock clocks) that we threw at it. The 7820X (with 2 more cores) would certainly do no worse.

It would have been interesting to try it with SLI 1080 Ti's. We may have to try that on a future build.

darkshadoku 1 Build 1 point 21 months ago

So do you think this would a significantly better result in games as opposed to just getting the 7700k? The reason i am asking is i am currently on an old Phenom II X4 810 and I will be building a new Gaming PC in the next month (or month and a half) and i was looking at this extreme processor since i am building fresh

BoyScout staff submitter 21 Builds 2 points 21 months ago

We have another 7700K / 1080Ti build coming up later this week, but the closest equivalent build that we tested with a 7700K that I can quickly show you right now is an mini-ITX build we did last month for a LAN party. The 1080 Ti we used in that build wasn't clocked as high as the MSI DUKE in this build, but you can see it's relative performance to our build above.

The 7800X leaves the 7700K in it's dust on CPU-intensive benchmarks, but overall gaming performance is well within reach of each other because the GPU is playing such a critical limiting role. You can see a slight FPS boost here over that system, particularly with BF1 and Wildlands that take decent advantage of the extra CPU performance, but that's also the impact of the higher clocked MSI DUKE card.

Now look back at our recent 2-Way SLI GTX 1080 / i7-7700K build and see that while two 1080's can reasonably out perform the single 1080 Ti in this build, even though the CPU (/physics) scores are significantly behind what the 7800X can hit.

So on balance, no -- the 7700K isn't going to hold back your performance, at least not with current generation games and GPUs.

Den111 1 point 17 months ago

As far as i know, the 7740X is the only kabyLake of the X series in the I7 family. The 7800X and over are all Skylake. If you expect upgrade one day your processor, you should go with the 7800X and you will then be able to change later for any of the I9 X-series without changing your X299 mobo and or your ram. It's more intelligent that way...

Chubbby 1 Build 1 point 22 months ago

Wow, first comment? Man as much as im not a fan of core i9, that is a sexy computer! +1 to you for the pretty build, one for MSI for making such a good motherboard and graphics card designs and one for the hell of it.

BoyScout staff submitter 21 Builds 1 point 22 months ago

Glad you liked it! Thanks for the feedback.

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videonery 5 points 22 months ago

this new line up is going to be obsolete in three months once coffee lake is out. this is just trying to grab peoples money before the actual competition comes out

Anyansayo 1 Build 1 point 21 months ago

I'm not so sure about that. Was the i7 6950X junk when the 7700K came out? I'd assume that intel will create quad cores as a top of the line next gen option but I guess that you never really can fully predict the business strategy.

mad3on 1 point 21 months ago

Does he mean canon lake? Coffee lake is just another 14nm reboot. Canon lake is set to move the process to 10nm. That could potentially nullify a lot of existing cpu's, a lot more than coffee lake will, but seeing as the laptop versions of the canon lake chips are going to be the first out, it'll be a while.

Anyansayo 1 Build 1 point 21 months ago

Is all that information on the next gen intel CPUs out now? I thought that it was all speculation at this point.

MuchLinux6500 2 Builds 1 point 22 months ago

Wow! Thanks for doing this!

BoyScout staff submitter 21 Builds 1 point 22 months ago

Thanks for the feedback -- glad you enjoyed it!

MuchLinux6500 2 Builds 2 points 22 months ago

I'm thinking of getting a Kabylake-X in college, but by then it will have changed so much that I will want to get a different one. :)

pierocks321 1 point 22 months ago

Hi I'm new to the whole building your own pc thing, but I definitely need an upgrade from what I currently have. This build is right in the price range I'm looking for, but pcpartpicker claims there may be some compatibility issues with the parts. Could you clarify? I'm looking to copy this build for high end gaming so I was wondering what monitor you would also recommend. Thanks.

BoyScout staff submitter 21 Builds 1 point 22 months ago

There are several compatibility notes, but they are just warnings. The main one of interest is the removal of the 3.5" HDD cage to use this particular GPU due to its length. If you plan to use a traditional HDD in your build, be sure to edit the part list and find a shorter option (there are plenty -- this just happens to be a particularly long card).

Boss602 1 point 22 months ago

Looks great.

I'm thinking of getting the gtx 1080 ti msi duke, how are you finding that card?

BoyScout staff submitter 21 Builds 3 points 21 months ago

As you can see from the benchmarks, it performed well during our testing. It's a sharp looking card, though be sure to note it's size. At 320mm it's a bit longer than most 1080 Ti's so you'll want to make sure the case you put it in has the clearance.

The positive of the extra length is the width is only 42mm, meaning it doesn't push past the two slots needed like some Ti's that require 3 slots of room. Also be aware that it's pretty heavy (as others have noted the slight sag). It's holding up fine in the week we've been testing on it, but I wouldn't argue with the suggestion of a support bracket.

Boith 3 Builds 1 point 21 months ago

Nice to know my 5820K is barely behind the 7800X (granted, OC, but still)

EdInk 11 Builds 1 point 21 months ago

Like the custom VRM heatsink, nice touch.

It would be interesting to see how much power was drawn by the CPU, stock and OC'd

J_Vilander 1 point 21 months ago

89c cpu... great job intel :/

BoyScout staff submitter 21 Builds 1 point 21 months ago

To be fair, that was under load with our 4.6GHz overclock across all cores. It ran at a cool 55C under load at stock clock speed. There's probably a happy medium to be found in there with more tweaking.

J_Vilander 1 point 21 months ago

so 4.6 is redline?

BoyScout staff submitter 21 Builds 1 point 21 months ago

If I recall, the temps we got at 4.7 (which is the max offered by the built in OC controls) were approaching 99C, and more importantly we started seeing a lot of crashes. I don't know that I'd want to sustain temps at 89C either, but at least the benchmarks and games we tested were running pretty stable at 4.6 GHz.

This was also just intended to show off what the motherboard's on-board easy overclock feature could do. You might be able to tweak the parameters to get faster stable results.

ChaseIsASavage 1 point 21 months ago

I now know what causes global warming

Huutonytran 1 Build 1 point 21 months ago

Looks clean AF good job man.

BoyScout staff submitter 21 Builds 1 point 21 months ago

Thanks -- glad you enjoyed it!

DeltaForceGM01 1 point 20 months ago

having any trouble with the 8+4 pin cpu power?

BoyScout staff submitter 21 Builds 1 point 20 months ago

We didn't have any issues. What kind of trouble do you mean?

DeltaForceGM01 1 point 20 months ago

i heard the cpu power cables where heating up and that the cpu may require a 8+8 for high OC

PKNHRDBRUH 1 point 19 months ago

I just built my 7800x system funny I'm getting 19c idle temps stock on the hottest core showing up on both HWMonitor and CAM usually CAM is wrong? You get 27c Hmm? Is it hot where you live? I get 1435 Cinebench score stock you get 1313 my chip hits max 4.0ghz stock I haven't OC yet.

I'm just wondering what the hells going on my results are way better than other reviewers? I get close to what you get at stock 4.0ghz than you do with a 600mhz advantage wtf is going on?

Just looking to compare my results.

PKNHRDBRUH 1 point 19 months ago

Oh yea I'm using a Kraken x62 on silent mode max the fans spin is 489rpm.

guiescaleira 1 Build 1 point 16 months ago

Whats the name of that M.2 Shield?

BoyScout staff submitter 21 Builds 1 point 16 months ago

It came included with the motherboard.

Dia_Cross 1 point 4 months ago

I really like the build. How do you like the cooler?

BoyScout staff submitter 21 Builds 1 point 4 months ago

We've used the Celsius S36 in a couple builds now and have been pretty happy with it so far. Pretty easy to build with, looks clean with the integrated fan hub (a favorite feature!), and it runs fairly quiet. Did you have any specific questions or concerns about it I can help with?

Dia_Cross 1 point 4 months ago

Not really just really debating this cooler vs a thermaltake one but I'm leaning towards this cooler!

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philip staff 10 Builds 1 point 21 months ago

Please keep feedback polite and constructive.

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BoyScout staff submitter 21 Builds 2 points 22 months ago

The SSD is running cool. Just realized I forgot to post it (will update), but we monitored its temps since we wanted to see how the thermal shield was doing.

Under load and with peak temps in the system, it was running at 42C. There's a lot of air moving from the front of the system across the board, which is what allows the thermal shields to be useful at moving heat off the drive.

So.... the reason there's no HDD in the build is that we ended up removing the only included HDD mounting options to install the cooler at the front of the case. Mounting the cooler at the top would have made it possible, but just didn't look as nice, both on the tube orientation and it blocked the view of the motherboard (which honestly, we wanted to show off).

But Phanteks does offer an optional HDD mount that would sit under the shroud. And, of course, you could use the other M.2 slot or 2.5" HDD/SSD drives for additional storage.