I hate to borrow someone else's post, but I have to point this one out, I thought it was interesting:
Here's something really interesting that explains what wen't wrong with the AMD setup.
Rahul Sood's weblog
You’ll notice that the image I am referring to on Anandtech's website states that the AMD processor is “unknown” which makes me believe that the bios they are running is outdated. So, I did a bit of digging and low and behold, the DFI bios version “D49C-32” they are running is from 10/11/05. There has been 1 major revision with major fixes that include:
Set Cool 'n' Quiet Default to Disabled
- With Cool & Quiet enabled, AMD processors will throttle in order to save power and bring their thermal load down. This means the processor could be running as low as 800MHz in certain programs – no matter what the program is. In theory Cool & Quiet is supposed to throttle up to maximum in games but this is not always the case. No enthusiast PC goes out with Cool & Quiet enabled unless it’s a fanless machine or media center.
Add Support for AMD Athlon 64 FX60 CPU
- According to DFI the FX-60 will not operate correctly without this bios update. Without official support for the FX-60 CPU I’m not sure what we’re comparing against here.
Fix Memory Timings 2-1-1-1-1 and 4-1-1 Mode Wrong & Fix Read Preamble Table Error.
- Memory latency can make a massive difference in performance. If the latency was not running at the correct latency we can see a pretty big difference in all kinds of performance. Anandtech stated “The AMD system used 1GB of DDR400 running at 2-2-2/1T timings…” Apparently this isn’t the case, but they would not be able to tell without having the platform in house.
The AMD system used 1GB of DDR400 running at 2-2-2/1T timings, while the Intel system used 1GB of DDR2-667 running at 4-4-4. Both systems had a pair of Radeon X1900 XTs running in CrossFire and as far as we could tell, the drivers and the rest of the system setup was identical.
If you look at AMD's performance, it is obvious it was performing on par to a 2.8GHz PC.
Fix Fill 3114 SVID&SSID under Cross fire mode.
- More apparent performance issues under Crossfire mode.
Next, when you take a future Intel chipset and compare it to a chipset that no enthusiast supports (RD480) with an outdated bios it’s like taking a Ferrari and putting it on Bias-Ply tires. It’s just not a good way to show off a “new” technology.
I have a RD480 and it is about as enthusiast a board you could get, up till a couple of weeks ago with the RD520 just released.
Had Intel taken an RD580 (Crossfire Xpress 3200) and coupled with the AMD Athlon FX-60 processor they almost certainly would have seen some better numbers just based on the bios issues alone. The ATi Xpress 3200 would have improved the overclocking and decoding performance as well. You don’t need a time machine to jump over to the nearest Newegg and buy the latest parts. It’s almost like Intel took their time machine 6 months ahead while throwing AMD into a time warp set a few months back in time.
I found it surprizing they overclocked the FX-60 200MHz over stock! That is the equivlant of a FX-62, which is a Future Product!
So now a few numbers caught my attention based on another email I received last night.
If we go and check out the numbers on Anandtech we’ll see the Unreal Tournament 2004 benchmark showing 160fps on the unknown AMD X2 processor while the Intel Conroe at 2.66GHz came in significantly higher at 191fps.
Though this isn’t exactly conclusive, if you go back and re-read some old FX-57 reviews on Tom’s Hardware you’ll see a benchmark for the same game set at the same resolution, the FX-57 running at 2.8GHz scored 183.4fps. The funny thing is it’s using an Nvidia Geforce 6800 GT which seems to me that something is totally wrong here. Note that a single core Athlon 64 4000 achieved a better score in the benchmark run by Tom (160.5fps) than the one provided by Intel (160.4) at IDF.
Is that difference due to running on High Quality Mode, not standard mode as the benchmard defaults too?
AMD still has some big performance gains with AM2, we are talking about a new platform with low latency DDR-2 support along with new processors. While I’d love to tell you how much performance difference this would give you on a clock to clock basis, I’m afraid you’ll have to use your imaginations for now.
Hmm, DDR-2 is higher latency than DDR1, and the platform itself is doubtfull to boost performance much, it could even slow it down a bit. The performance comes from more available bandwidth for higher MHz and redesigned chips to take advantage of...