AMD FX-8150, FX-8120, FX-6100 and FX-4170
Posted on: 10/10/2011 06:10 AM
Today AMD is launching for the first time its new FX processor series based on the Bulldozer microarchitecture. Designed from the ground up, these new processors are geared towards mainstream users. The range will include processors with up to eight cores, while six and four core models will also be available...
Bulldozer is a codename that has been tossed around for years now and finally we get to find out whatís behind the name. The Bulldozer-based desktop processors are based on the "Zambezi" 32nm architecture and will feature up to 8-cores. This means it features the worldís first 8-core desktop solution which has been designed from the ground up.
AMD is kick starting the new FX line-up with seven new processors, which include 8-core, 6-core and 4-core models. The flagship processor is the FX-8150 which features a base clock of 3.6GHz with a Turbo Core clock of 3.9GHz and a Max Turbo clock of 4.2GHz.
The FX-8150 has a TDP headroom of 125 watts and of course it features 8-cores. However it also features an 8MB L2 cache along with an 8MB L3 cache, which is standard across all 8-core processors. Accompanying the FX-8150 is the FX-8120 and FX-8100 processors, the FX-8120 features a base clock of 3.1GHz while the FX-8100 works at 2.8GHz.
AMD has set the MSRP of the FX-8150 at just $245, which is only slightly more than the asking price of the Core i5-2500K, while it is considerably less than the Core i7-2600K. The FX-8120 is cheaper again at just $205, which is amazing given this 8-core processor is cheaper than the Core i5-2500K.
Along with the three 8-core processors is a single 6-core known as the FX-6100, which comes clocked at 3.3GHz with a Turbo Core frequency of 3.6GHz and a Max Turbo clock of 3.9GHz. While the L3 cache remains the same at 8MB, the L2 cache has been reduced to 6MB as 1MB is allocated per core. The FX-6100 features an MSRP of just $175, which seems like an incredible deal given the Phenom II X6 1100T currently costs $190 and the Core i5-2600K even more at $220.
Finally there are three 4-core models, which include the FX-4170, FX-B4150 and FX-4100. These quad-core parts feature a 4MB L2 cache along with the full 8MB L3 cache. The FX-4170 is the highest clocked Bulldozer processor with a standard operating frequency of 4.2GHz, that said the Turbo Core feature is disabled and the Max Turbo frequency is just 100MHz above the base clock.
Bulldozer is designed to provide the perfect balance between performance, cost and power consumption for multi-threaded applications. It focuses on high-frequency and resource sharing to achieve optimal throughput for next generation applications. As mentioned previously, the AMD FX processors offer up to eight power-efficient cores. These represent the first generation of a new execution-core family from AMD (Family 15h).
The Bulldozer concept is based on a 2-core design which shares latency-tolerant functionality, smoothes bursty/inefficient usage, and provides dynamic resource allocation between threads. Each core has its own 16KB L1 cache along with a 1MB L2 cache, while the L3 cache is shared. The other units are now effectively shared between two cores and include: Fetch, Decode, Floating point pipelines, and the L2 cache.
So how does the new Bulldozer architecture perform and can it stand up to Intelís latest Sandy Bridge processors? When testing we will be focusing on how the FX-8150 flagship processor compares to the Core i5-2500K and Core i7-2600K processors. Finally, we will be evaluating how the new FX processors compare not only in terms of performance, but more importantly value.
Printed from Legion Hardware (http://www.legionhardware.com/articles_pages/amd_fx_8150fx_8120fx_6100_and_fx_4170,1.html)