| AMD Phenom-II X4-840 CPU HDX840WFGMBOX |  |
| Reviews - Featured Reviews: Processors | |
| Monday, 03 January 2011 | |
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Phenom-II X4-840 AM3 FeaturesAMD Direct Connect ArchitectureAn award-winning technology designed to reduce bottlenecks that can exist when multiple components compete for access to the processor bus. Competing x86 systems use a single front-side bus (FSB) which must carry memory access, graphics, and I/O traffic. Eliminate the FSB, and you can reduce delays that competing access requests can cause. 45 nm Process Technology with Immersion LithographyMore efficient process technology with cutting-edge lithographic performance puts more transistors in less space. AMD Wide Floating Point AcceleratorDoubles processor bandwidth from 64- to a full 128-Bit Floating-Point math processing pipeline that can double many of the bandwidth paths that help keep it full. AMD Digital Media XPress 2.0 TechnologyProvides support for SSE, SSE2, SSE3, SSE4a, and MMX instructions for digital media applications and security. CPU Architectural FeaturesTrue Multi-Core ProcessingThe extensive AMD64 architectural optimizations and features enable thorough integration of multiple cores within the same processor, with each core having its own L1 and L2 caches. AMD Dedicated Multi-CacheEach core has its own dedicated L2 cache, which enables simultaneous independent core access to L2 cache, eliminating the need for cores to arbitrate for cache access. This helps reduce latency on L2 cache accesses. AMD Virtualization (AMD-V) TechnologySilicon feature-set enhancements designed to improve the performance, reliability, and security of both existing and future virtualization environments. AMD PowerNow! 3.0 TechnologyThe latest power management technologies that deliver performance on demand when you need it, and power savings when you don't. HyperTransport 3.0 TechnologyThird-generation HyperTransportTM interface improves performance, supporting transfer speeds up to 4.4GT/s. Simultaneous 32-bit and 64-bit ComputingAMD64 technology enables a breakthrough approach to 64-bit computing that doubles the number of registers in the processor and allows PC users to use today's 32-bit software applications while enabling them to also use the next generation of 64-bit applications. Cool'n'Quiet 3.0 TechnologyUp to eight different performance states help enhance power efficiency. Simplified performance state transitions can reduce latency and the software overhead of performance state changes. AMD Dynamic Power ManagementEach processor core, and the integrated memory controller and HyperTransportTM controller, is powered by dedicated voltage planes. Integrated Dual-Channel Memory ControllerDirectly connects the processor to memory for optimum performance, low latency, and high throughput. Multi-Point Thermal Control
The next-generation design features multiple on-die thermal sensors with digital interface. Automatic reduction of p-state when temperature exceeds pre-defined limit. Additional memory thermal management interface. AMD CoolCore TechnologyCoarse and fine transistor control that can automatically reduce processor energy consumption by turning off unused parts of the processor. HDX840WFGMBOX Specifications
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Comments
However... the Phenom II 840 is not "a wolf in sheep's clothing", as you say, but more of a sheep in wolf's clothing :-)
It should be called a Athlon II 650, without a doubt. This renaming brings shame to AMD.
No doubt we will see the likes of HP and Acer peddling this Phalse Phenom to the gullible masses.
On a different note I am curious how many people complained when the the i5 was moved from the quad core as it originally released to a dual? Did anyone cry foul then?
The difference in actual results is mostly way below the 12.5% expected by the clock speed alone.
Seems like the only reason for spending the extra money on a "real" Phenom II X4 is to get a Black Edition with better overclocking.
Do not forget the L3 cache is suited for memory intensive tasking.
So just a clockspeed application a faster Athlon will beat a lower clocked Phenom,but whenever memory (Cache) comes in play a slower Phenom will beat an even higher clocked Athlon handsdown.
That's why in certain games the smaller P2X2 560 will beat the Athlon 2X4 645 .