With these potential issues in mind, how do we set up a fair comparison between similarly priced Phenom II and Core i7 systems?
To truly realize the cost difference, we need to list and price the PC components that are linked to either the Phenom II or Core i7 CPU.
For instance, the case, power supply, hard drives, optical drives, etc. are generic and can be used for any kind of CPU. The components that are specific to an AMD or Intel platform would be the CPU, motherboard, RAM, and CPU cooler.
Let's start with our Core i7 build. In this case, we will use the same one we set up for the last SBM:
| Core i7: Core System Components | ||
|---|---|---|
| Motherboard | DFI LANParty Jr X58-T3H6 Micro-ATX | $199.99 |
| Processor | Intel Core i7-920 | $279.99 |
| Memory | G.Skill 10666CL7T 6GBPK | $94.99 |
| CPU Cooler | Xigmatek Dark Knight S1283 | $39.98 |
| Total Cost | $614.95 |
Why did we choose these parts for the i7 system? For starters, the Core i7-920, which retails for less than $300, is the cheapest Core i7 CPU by far. The next step up, the Core i7-940, costs about twice that for only a couple hundred more megahertz. Intel's Core i7-920 is also known to be a fantastic overclocker, so it's an easy choice.
The motherboard we chose is DFI's X58-T3H6 because we needed a MicroATX board to fit in our previous SBM system, but any quality X58-based motherboard--a requirement of the Core i7 CPU--will be in this price range. The cheapest Core i7 board we could find was the MSI X58 for $170, which is $30 cheaper than the DFI board we chose.
For RAM, we chose the most cost-effective module we could find with CAS 7 timings, G.Skill's PC3-10666. Because the Core i7 benefits from running in triple-channel mode, we needed a triple-channel kit to squeeze the most performance out of it. For under $100, the kit isn't a huge expense.
Finally, a good Core i7 build needs a solid cooler, and Xigmatek's Dark Knight will do the job for $40.
So, the base cost of our Core i7 build comes to about $615. Let's see how much a Phenom II build will run us:
| Phenom II: Core System Components | ||
|---|---|---|
| Motherboard | ASUS M4A79T Deluxe | $199.99 |
| Processor | Phenom II X4 955 Black Edition | $245.00 |
| Memory | G.Skill 10666CL7T 6GBPK | $64.99 |
| CPU Cooler | Zerotherm NV120 | $49.99 |
| Total Cost | $539.97 |
A little more thought went into the AMD system. Why didn't we go with a cheaper DDR2 motherboard, less expensive RAM, and a lower-end Phenom II processor? We'll tell you, but first we have to consider the price of the components we've chosen.
At $540, the Phenom II X4 955 system's core components cost about $75 less than the Core i7 system's core components. This represents the price difference between a pair of Radeon HD 4870 and Radeon HD 4890 cards. With this in mind, let's consider what we could've done differently.
First of all, the processor we chose was the Phenom II X4 955 Black Edition. There are a number of good Phenom II processors from which to choose, ranging from the cheaper AM2+ models that use DDR2 to the triple-core X3 models that can use either DDR2 or DDR3. These CPUs offer a low price and reasonable performance (especially for games, since many game engines tend not to use more than three CPU cores, anyway).
If that is the case, why did we go with the most expensive Phenom II CPU for this build? The decision hinged on this: what could we get with the extra cost savings? We already have enough money left over in our budget to upgrade from a pair of Radeon HD 4870s to two Radeon HD 4890 cards in the Phenom II system. If we go for a cheaper CPU, saving another $100 or even $200 doesn't allow us to upgrade to a more powerful graphics solution because the next step up is a pair of Radeon HD 4870 X2 cards. These would cost $400 more, which is impossible with our budget.
The rest of the components fall into place from there. The Asus M4A79T Deluxe motherboard is certainly not the cheapest model, but it does sport the 790FX chipset and dual full-speed PCIe x16 slots for the CrossFire graphics cards. Cheaper motherboards with the 790FX chipset can be found for as low as $135, such as the DFI LANParty DK 790FX-M2RS, which is about $45 less expensive than our test setup. Since the cheapest X58 motherboards are about $30 less expensive than the one we selected, we're still in the same range here.
The choice of RAM is a notable deviation from the Core i7 components as well. Consider that a Phenom II system requires paired modules to operate in dual-channel mode, while the Core i7 requires one more module for triple-channel mode. While two 2 GB sticks of DDR3 RAM will leave us 2 GB short in comparison to the Core i7 system, we know from experience and testing that the real-world difference between 4 GB and 6 GB is almost negligible in most situations. Additionally, the cost savings from less RAM allows us to allocate more cash toward the Phenom II-based system's graphics cards.
Finally, the CPU cooler. Zerotherm's NV 120 is a nice unit, but most CPU coolers worth their salt will be in the same price range, so insert your favorite flavor of cooler if you disagree with the model selected.
We did have some forum users mention that we might want to spec out an even cheaper AM2+ Phenom II system and use the savings toward a solid state drive (SSD) instead of a graphics upgrade, but we're not sure that would provide enough of a tangible performance benefit to offset losing the 790FX chipset and its dual PCIe x16 graphics slots, the faster Phenom II X4 955 processor, and the speedy DDR3 RAM. It's certainly an option, though, and if you're simply looking to build an even cheaper gaming system, the AM2+ Phenom IIs are a very good choice.
Now that we understand what we're building, let's have a final look at all of the components in our test systems.
- Introduction: A Little Background
- Phenom II Versus Core i7-920: Competing System Cost Analysis
- Test Systems And Benchmark Setup
- Synthetic Benchmarks
- Game Benchmarks: Crysis
- Game Benchmarks: Far Cry 2
- Game Benchmarks: World In Conflict
- Game Benchmarks: Stalker Clear Sky
- Game Benchmarks: Tom Clancy's H.A.W.X.
- Game Benchmarks: Fallout 3
- Game Benchmarks: Left 4 Dead
- Game Benchmarks: Prototype
- Conclusion
Umm have you taken any time to read any Tom's articles? This is their bread and butter, the reason the site exists. People read these articles because they want to know what to do with their money, the THG authors know what they are doing. The reason for these articles is to show performance differences, and this article does that very well.
I grew tired of defending your findings in the forums, and I was looking forwards to this, and its paid off.
Great read, and Toms should be thankful for having you
Adding in nvidia cards would be interesting to see, yes, but then we're moving more into engine optimizations and such, and things get less exact. Maybe the effect of software preferences on hardware architecture can be a future writeup? Nice article, here, though.
As I expected on the numbers, but I now want to see if the 790X chipset is to blame, or the Gigabyte board itself, or perhaps the memory controller onboard the CPU is to blame?
Did you read the conclusion at all? AMD lost by the numbers. That's not pro-intel, it's pro-logic. It's pro-science. That's the way the world works.
Wow. You take things way too seriously.
Ahslan .... buy your own pc ...not your daddy
http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.209473
I still love AMD, though. I don't need the extra muscle that Intel gives. I'm happy with what AMD's processors give me, in terms of gaming.
I love supporting the underdog! I just can't help it. =] Intel might make great processors, but I just don't like their arrogance. That's why I support AMD. =]
you realize that with this kind of articles you play with peoples money?
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130227 mobo= 169
http://www.newegg.com/Product/Product.aspx?Item=N82E16820220378 ram = 85
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121291 4870 1gb times 2 =320 total =1083
http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.209473 phenom 2 940+mobo =204
http://www.newegg.com/Product/Product.aspx?Item=N82E16820227289 ram =65
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102809 4850x2 times two = 420
total=919 so thats the truth but if you want you could switch out the graphics for two gtx 285 or a 4870x2 or a gtx295 its up to you.
VERY MANY people buying I7 only pair it with one graphics card and save money everywhere in the system to be able to buy the I7 (talking about gaming systems).
Of course if you put in 2 great Gpu's, you need a very strong Cpu to handle them. Most people throw the I7 at 1 4890.
It would be very intresting to compare a PhenomII x3 720 system with Two 4890's to an I7 build with only one. (same price or amd even cheaper^^)
You compare the most expensive and not much overclockable 955 to the cheapest I7 with most overclocking headroom. Why don't you compare it to the cheaper PhenomII which also reach the 3.6 Ghz the 955 reached? Maybe even the x4 810.
After that Article I agree that If you have the money for two 4890 and still can afford an I7 it's the best choise.
But what if you dont have the money for an I7 and Two high end cards? Whats if you have to make compromises in you I7 build just for the sake of having an I7?
I think that's were the Phenom II shows its strength.
You Take the I7 best price/perfomance point and give the same budget to an Amd system. It's clear that Amd can't compete that well. It seems that you first build the I7 system you think is best and then take the money to build an Phenom II system.
Please try it the other way round once! Build a Phenom II gaming system (720/810/940 with two graphics)and THEN take the money you used and build an I7 system (maybe sacrificing the second card? or just Xfiring two lower end cards? I don't know where but you then will have to save some money)
Most benchmarks show that the X3 720 overclocked shows performance numbers on par with the 955 (oc) so why spend all the money for the 955?
Umm have you taken any time to read any Tom's articles? This is their bread and butter, the reason the site exists. People read these articles because they want to know what to do with their money, the THG authors know what they are doing. The reason for these articles is to show performance differences, and this article does that very well.
WOW thats rude.
They made a great article comparing two cpus. Its good to know which one performs better in gaming.
Again the article was very helpful good work
i read at least 10 reviews from different sites before a buy something ..and for me is more important the opinion of end user, about a product ....if 1000 people says the p2 x3 is great in games with similar performance with a 250 $ intel i will buy p2x3 and tom articles has no value for me because they are 5 people and they don't use a cpu like an end user ... they use a cpu just for rating and i spent my own money not their money ......open your eyes