Original Link: http://www.anandtech.com/show/2861
AMD's Athlon II X3 435 & New Energy Efficient CPUs: Killing Intel Below $90by Anand Lal Shimpi on October 20, 2009 12:00 AM EST
- Posted in
A month ago AMD introduced the world’s first quad-core processor to debut at $99. Last week, AMD announced its third quarter earnings for 2009. While the company as a whole lost money, the Product Company (CPU and GPU design) turned a small profit. I don’t want to say that the worst is behind AMD, but things are definitely looking up.
|Income||Q3 2009||Q2 2009||Q1 2009|
|AMD||-$128 Million||-$330 Million||-$416 Million|
|AMD Product Company||+$2 Million||-$244 Million||-$308 Million|
And for the consumer, AMD is providing a ton of value these days. You're getting more transistors per dollar than Intel will give you, and it's not just bloat, these things are fast:
|Processor||Cores||Manufacturing Process||L1 Cache||L2 Cache||L3 Cache||Die Size||Transistor Count|
|AMD Phenom II X4||4||45nm||128KB per core||512KB per core||6MB||258 mm2||758M|
|AMD Athlon II X4/X3||4||45nm||128KB per core||512KB per core||0MB||169 mm2||300M|
|AMD Athlon II X2||2||45nm||128KB per core||1MB per core||0MB||117 mm2||234M|
|Intel Core 2 Quad Q8xxx||4||45nm||64KB per core||4MB||0MB||164 mm2||456M|
|Intel Pentium E6xxx||2||45nm||64KB per core||2MB||0MB||82 mm2||228M|
The value train continues with todays introduction of the first triple core Athlon II processors: the Athlon II X3 435 and 425. Clocked at 2.9GHz and 2.7GHz respectively, these processors are simply Athlon II X4s with one core disabled.
They’re also quite affordable. The 435 will set you back $87 while the 425 costs $76. This puts them on par with Intel’s Pentium E6000 series dual core processors, but cheaper than the Core 2 Duo E7500. This has been AMD’s high end dual core strategy for the Phenom’s life: sell three cores for the price of two. And in the past, it has worked.
|Processor||Clock Speed||L2 Cache||L3 Cache||TDP||Price|
|AMD Phenom II X4 965 BE||3.4GHz||2MB||6MB||140W||$245|
|AMD Phenom II X4 955 BE||3.2GHz||2MB||6MB||125W||$245|
|AMD Phenom II X4 945||3.0GHz||2MB||6MB||125W||$225|
|AMD Phenom II X3 720 BE||2.8GHz||1.5MB||6MB||95W||$145|
|AMD Phenom II X2 550 BE||3.1GHz||1MB||6MB||80W||$105|
|AMD Athlon II X4 630||2.8GHz||2MB||0MB||95W||$122|
|AMD Athlon II X4 620||2.6GHz||2MB||0MB||95W||$99|
|AMD Athlon II X3 435||2.9GHz||1.5MB||0MB||95W||$87|
|AMD Athlon II X3 425||2.7GHz||1.5MB||0MB||95W||$76|
|AMD Athlon II X2 250||3.0GHz||2MB||0MB||65W||$87|
|AMD Athlon II X2 245||2.9GHz||2MB||0MB||65W||$66|
|AMD Athlon II X2 240||2.8GHz||2MB||0MB||65W||$60|
The X3s AMD is announcing today are clocked high enough that you still have good performance in single threaded applications, and in those that can take advantage of three cores you’re almost guaranteed to have better performance than the Intel alternative.
The real question you have to ask is whether it makes more sense to spend a little more than get a quad-core processor or not.
The Athlon II X3s are 45nm 95W TDP parts and work in both Socket-AM2+ and Socket-AM3 motherboards. As I mentioned before, these are architecturally identical to the X4s just with one core disabled. That means you get a 512KB L2 per core but no L3 cache.
I’ll spoil the surprise for you here: they’re faster than the equivalently priced Intel CPUs in most cases, but that’s not too surprising.
The Athlon II X3 435 is a bit more overclockable than the X4 620. Without any additional voltage we got 3.25GHz on our 620 sample, but our 435 yielded 3.33GHz:
With an extra ~15% voltage we could get 3.63GHz:
AMD is also introducing a slew of energy efficient Athlon IIs as well. They’re all in the table below:
|Processor||Clock Speed||L2 Cache||TDP||Price||Premium|
|AMD Athlon II X4 605e||2.3GHz||2MB||45W||$143||+$44|
|AMD Athlon II X4 600e||2.2GHz||2MB||45W||$133||+$34|
|AMD Athlon II X3 405e||2.3GHz||1.5MB||45W||$102||+$26|
|AMD Athlon II X3 400e||2.2GHz||1.5MB||45W||$97||+$21|
|AMD Athlon II X2 240e||2.8GHz||2MB||45W||$77||+$17|
|AMD Athlon II X2 235e||2.7GHz||2MB||45W||$69||+$9|
These energy efficient processors are binned for lower voltages and thus have a 45W TDP. Unfortunately you do sacrifice clock speed in some cases as a result. There's also a hefty price premium, at the high end you lose clock speed and pay 44% more for a 45W TDP.
|Motherboard:||Intel DX58SO (Intel X58) |
Intel DX48BT2 (Intel X48)
Gigabyte GA-MA790FX-UD5P (AMD 790FX)
|Chipset:|| Intel X48 |
|Chipset Drivers:|| Intel 188.8.131.525 (Intel) |
AMD Catalyst 8.12
|Hard Disk:||Intel X25-M SSD (80GB)|
|Memory:||Qimonda DDR3-1066 4 x 1GB (7-7-7-20) |
Corsair DDR3-1333 4 x 1GB (7-7-7-20)
Patriot Viper DDR3-1333 2 x 2GB (7-7-7-20)
|Video Card:||eVGA GeForce GTX 280|
|Video Drivers:||NVIDIA ForceWare 180.43 (Vista64) |
NVIDIA ForceWare 178.24 (Vista32)
|Desktop Resolution:||1920 x 1200|
|OS:||Windows Vista Ultimate 32-bit (for SYSMark) |
Windows Vista Ultimate 64-bit
SYSMark 2007 Performance
Our journey starts with SYSMark 2007, the only all-encompassing performance suite in our review today. The idea here is simple: one benchmark to indicate the overall performance of your machine.
Overall performance under SYSMark is pretty balanced for the Athlon II X3 435. It's faster than the $99 quad-core (620) but slightly slower than the quad core 630. We're slower than the old triple core Phenom II X3 720 though.
Adobe Photoshop CS4 Performance
To measure performance under Photoshop CS4 we turn to the Retouch Artists’ Speed Test. The test does basic photo editing; there are a couple of color space conversions, many layer creations, color curve adjustment, image and canvas size adjustment, unsharp mask, and finally a gaussian blur performed on the entire image.
The whole process is timed and thanks to the use of Intel's X25-M SSD as our test bed hard drive, performance is far more predictable than back when we used to test on mechanical disks.
Time is reported in seconds and the lower numbers mean better performance. The test is multithreaded and can hit all four cores in a quad-core machine.
Photoshop performance of our triple core competitor is slower than the lower clocked X4 620. It is however the exact same speed as the Phenom II X3 720.
DivX 8.5.3 with Xmpeg 5.0.3
Our DivX test is the same DivX / XMpeg 5.03 test we've run for the past few years now, the 1080p source file is encoded using the unconstrained DivX profile, quality/performance is set balanced at 5 and enhanced multithreading is enabled:
DivX encoding performance is hot on the heels of the Athlon II X4 620, but still slower. Once more we're about the same speed as the Phenom II X3 720.
x264 HD Video Encoding Performance
Graysky's x264 HD test uses the publicly available x264 codec (open source alternative to H.264) to encode a 4Mbps 720p MPEG-2 source. The focus here is on quality rather than speed, thus the benchmark uses a 2-pass encode and reports the average frame rate in each pass.
x264 encoding performance is noticeably slower than the quad-core offerings. Even the 2.3GHz 605e is faster than the X3 435. Compared to the equivalently priced dual-core options from Intel however, the Athlon II X3 435 is without a doubt the chip to get. If you're encoding video however, you're probably better springing for the $99 quad-core.
Windows Media Encoder 9 x64 Advanced Profile
In order to be codec agnostic we've got a Windows Media Encoder benchmark looking at the same sort of thing we've been doing in the DivX and x264 tests, but using WME instead.
3dsmax 9 - SPECapc 3dsmax CPU Rendering Test
Today's desktop processors are more than fast enough to do professional level 3D rendering at home. To look at performance under 3dsmax we ran the SPECapc 3dsmax 8 benchmark (only the CPU rendering tests) under 3dsmax 9 SP1. The results reported are the rendering composite scores:
Compared to the Intel dual-core options, the Athlon II X3 435 is a definite winner here. It's got the core count and clock speed to beat the old Penryn derivatives. Its biggest competition comes from its own family, the Athlon II X4 620 is the better buy here.
Created by the Cinema 4D folks we have Cinebench, a popular 3D rendering benchmark that gives us both single and multi-threaded 3D rendering results.
As I've been mentioning this entire time, the Athlon II X3 435 doesn't really sacrifice clock speed in its three-core configuration. At 2.9GHz even its single threaded performance is comparable to the Pentium E6300. Run a multithreaded app however and the performance goes from parity to leading:
POV-Ray 3.73 beta 23 Ray Tracing Performance
POV-Ray is a popular, open-source raytracing application that also doubles as a great tool to measure CPU floating point performance.
I ran the SMP benchmark in beta 23 of POV-Ray 3.73. The numbers reported are the final score in pixels per second.
The POV-Ray results echo what we've been seeing thus far, vs. Intel there's no contest - the 435 is the better value. Compared to the quad-core Athlon IIs however, the 435 isn't very good.
Blender is an open source 3D modeling application. Our benchmark here simply times how long it takes to render a character that comes with the application.
PAR2 Multithreaded Archive Recovery Performance
Par2 is an application used for reconstructing downloaded archives. It can generate parity data from a given archive and later use it to recover the archive
Chuchusoft took the source code of par2cmdline 0.4 and parallelized it using Intel’s Threading Building Blocks 2.1. The result is a version of par2cmdline that can spawn multiple threads to repair par2 archives. For this test we took a 708MB archive, corrupted nearly 60MB of it, and used the multithreaded par2cmdline to recover it. The scores reported are the repair and recover time in seconds.
WinRAR - Archive Creation
Our WinRAR test simply takes 300MB of files and compresses them into a single RAR archive using the application's default settings. We're not doing anything exotic here, just looking at the impact of CPU performance on creating an archive:
Microsoft Excel 2007
Excel can be a very powerful mathematical tool. In this benchmark we're running a Monte Carlo simulation on a very large spreadsheet of stock pricing data.
Sony Vegas Pro 8: Blu-ray Disc Creation
Although technically a test simulating the creation of a Blu-ray disc, the majority of the time in our Sony Vegas Pro benchmark is spend encoding the 25Mbps MPEG-2 video stream and not actually creating the Blu-ray disc itself.
Sorenson Squeeze: FLV Creation
Another video related benchmark, we're using Sorenson Squeeze to convert regular videos into Flash videos for use on websites.
Fallout 3 Game Performance
Bethesda’s latest game uses an updated version of the Gamebryo engine (Oblivion). This benchmark takes place immediately outside Vault 101. The character walks away from the vault through the Springvale ruins. The benchmark is measured manually using FRAPS.
Finally! We have a test where the Athlon II X3 435's clock speed gives it the advantage over the 620. If you're a gamer but want more cores, the 435 is a good balance of performance in existing games but better than dual-core performance in well threaded apps.
Left 4 Dead
I've got no complaints about the X3's performance in Left 4 Dead either, it's nearly as fast as the more expensive Core 2 Duo E7500 (and with a much tastier upgrade path).
FarCry 2 Multithreaded Game Performance
FarCry 2 ships with the most impressive benchmark tool we’ve ever seen in a PC game. Part of this is due to the fact that Ubisoft actually tapped a number of hardware sites (AnandTech included) from around the world to aid in the planning for the benchmark.
For our purposes we ran the CPU benchmark included in the latest patch:
Even in our most heavily threaded game test, the X3 435 is a bit faster than the 620.
Thanks to its higher clock speed the Athlon II X3 435 draws a little more power than the 620 at idle, but uses a little less under load. The new energy efficient chips can't be touched. Personally I wouldn't spring for them, but if you're looking to upgrade a building full of machines and want as much power reduction as possible the e series can deliver.
We'll start with the good news first. The Athlon II X3 435, priced at $87, is a better buy than any of the similarly priced Intel dual-core processors. In heavily threaded applications it's even faster than the more expensive Core 2 Duo E7500. Compared to Intel, the X3 435 is a clear value leader.
The problem is compared to AMD, the Athlon II X3 435 isn't that impressive. The Athlon II X4 620 is faster in nearly every multithreaded benchmark, and it's only costs $12 more. It's only in games and other lightly threaded applications where the 435's higher default clock speed makes up for its lack of a fourth core.
The Athlon II X3 435 is about $15 more expensive than it should be to make sense in AMD's lineup. It's a great step between the dual and quad-core options, but if you need the performance you're probably better off with the 620.
You do get better overclocking potential (thanks to lower thermal output of only three cores), but bring overclocking into the mix and you can narrow the clock speed gap with an overclocked 620.
Compared to Intel, I like the Athlon II X3 435. Compared to AMD, I'd take a quad-core 620.