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The Dark Knight: Intel's Core i7
The Dark Knight: Intel's Core i7
Date: November 3rd, 2008
Topic: CPU & Chipset
Manufacturer: Intel
Author: Anand Lal Shimpi & Gary Key
Buy the Intel BX80569Q9550 Q9550 Core2Quad
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Gaming Performance

We have already teased you with the results of our gaming benchmarks, but sometimes charts are easier to look at than tables. I should stress that to get any of these modern games to be even remotely CPU bound I had to drop resolution and image quality, which is fine for this as we're trying to evaluate whether or not Nehalem is architecturally faster. In the real world however, you'll not see any performance difference in any of these titles with Nehalem over Penryn.

We start off with our Age of Conan benchmark. This is a fraps test, we take our character and swim him to shore and back measuring performance during the process.

Note that to get this game to be at all CPU bound we had to drop to medium quality and run at 1280 x 1024:

Age of Conan

This is the only game where we see Nehalem boast such a tremendous performance advantage. I suspect that it's extremely sensitive to memory latency for some reason, resulting in the i7-920 being faster than the QX9770.

Our GRID benchmark is a fraps test that measures frame rate at the very beginning of a race with our car starting at the back and then crashing into a wall:

Race Driver GRID

While racing games are usually great physics tests, GRID just wasn't CPU bound enough to show serious differences between the CPUs. Nehalem and Penryn are basically no different here.

For Crysis we ran the built in CPU2 benchmark on version 1.21 of the game:

Crysis

Like GRID, Nehalem offers nothing over Penryn in the performance department.

Far Cry 2's built in benchmark tool using the Ranch small test brings us our next set of numbers:

Far Cry 2

Here we have another game that favors the Core i7's architecture, but as we just saw it's not an across the board sort of win as some games miss Penryn's larger L2 cache.

Our last benchmark is a walk towards Megaton in Fallout 3:

Fallout 3

The edge goes to Intel's Core i7 once again.

Overall in gaming tests the situations where Nehalem was faster than Penryn outnumbered those where it didn't, but upgrading to Nehalem for faster gaming performance doesn't make sense. We were entirely too GPU bound in all of these titles, if you want Nehalem it should be because of its performance elsewhere.

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74 Comments - Last by anand4happy, 365 days ago
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CPU Vs GPU heat by fzkl, 463 days ago
"Where Nehalem really succeeds however is in anything involving video encoding or 3D rendering"

We have new CPU that does Video encoding and 3D Rendering really well while at the same time the GPU manufacturers are offloading these applications to the GPU.

The CPU Vs GPU debate heats up more.
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RE: CPU Vs GPU heat by haukionkannel, 463 days ago
Well if both CPU and GPU are better for video encoding, the better! Even now the rendering takes forever.
So there is not any problem if GPU helps allready good 3d render CPU. Everything that gives more speed is just bonus!


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RE: CPU Vs GPU heat by Griswold, 462 days ago
Wheres the product that offloads encoding to GPUs - all of them, from both makers - as a publicly available product? I havent seen that yet. Of course, we havent seen Core i7 in the wild yet either, but I bet it will be many moons before there is that single encoding suite that is ready for primetime regardless of the card that is sitting in your machine. On the other hand, I can encode my stuff right now with my current Intel or AMD products and will just move them over to the upcoming products without having to think about it.

Huge difference. The debate isnt really a debate yet, if you're doing more than just talking about it.

Reply
Server Benchies? by mjrpes3, 463 days ago
Any chance we'll see some database/apache benchmarks based on Nehalem soon?

Reply
Neh-Hay-Lem by Ryan Smith, 463 days ago
Intel can call it supercalifragilisticexpialidocious until they're blue in the face, but take it from a local, it's Neh-Hay-Lem. Just see how it's pronounced in this news segment:

http://www.katu.com/outdoors/3902731.html?video=YHI&t=a

Reply
so what about the overclock limiters in non extreme CPUs? by faxon, 463 days ago
toms hardware published an article detailing that there would be a cap on how high you are allowed to clock your part before it would downclock it back to stock. since this is an integrated par of the core, you can only turn it off/up/down if they unlock it. the limit was supposedly a 130watt thermal dissipation mark. what effect did this have in your tests on overclocking the 920?

Reply
RE: so what about the overclock limiters in non extreme CPUs? by whatthehey, 463 days ago
Tom's? You might as well reference HardOCP....

Okay, THG sometimes gets things right, but I've seen far too many "expose" articles where they talk about the end of the world to take them seriously. Ever since the i820 chipset fiasco, they seem to think everything is a big deal that needs a whistle blower.

Anandtech got 3.8GHz with an i7-920, and I would assume due diligence in performance testing (i.e. it's not just POSTing, but actually running benchmarks and showing a performance improvement). I'm still running an overclocked Q6600, though, and the 3.6GHz I've hit is really far more than I need most of the time. I should probalby run at 3.0GHz and shave 50-100W from my power use instead. But it's winter now, and with snow outside it's nice to have a little space heater by my feet!

Reply
RE: so what about the overclock limiters in non extreme CPUs? by GaryJohnson, 463 days ago
Geez, calling a core 2 a space heater. How soon we forget prescott...

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RE: so what about the overclock limiters in non extreme CPUs? by JarredWalton, 463 days ago
I think overclocked Core 2 Quad is still very capable of rating as a space heater. The chips can easily use upwards of 150W when overclocked, which if memory serves is far more than any of the Prescott chips did. After all, we didn't see 1000W PSUs back in the Prescott era, and in fact I had a 350W PSU running a Pentium D 920 at 3.4 GHz without any trouble. :-)

Reply
RE: so what about the overclock limiters in non extreme CPUs? by Griswold, 462 days ago
Funny comparison. If it was just for the space heater arguments sake (well, 150W is by far not enough to qualify as a real space heater to be honest), I could follow you but saying the 150W of a 4 core, more-IPC-than-any-P4-can-ever-dream-of, processor should or could be compared to the wattage of the infamous thermonuclear furnace AKA prescott, is a bit of a long stretch, dont you think? :p

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