Wednesday, July 23rd 2008
AMD 45nm Deneb Consumes up to 12% Less Power Compared to 65nm Agena
The newest fleet of quad-core desktop processors from AMD, the Deneb series is tested by Chinese website Zol to consume up to 12 per cent less power compared to equally clocked 65nm Agena parts, add to that, the fact that the 45nm Deneb comes with three times the amount of L3 cache, 6 MB.
The 45nm and 65nm parts were compared on a MSI K9A2 Platinum motherboard with a NVIDIA GeForce GTX 280 card, a single 320 GB HDD, two modules of 1GB DDR2 1066 MHz memory, the test-bed was powered by a Thermaltake Toughpower 1200W PSU. Power consumption was calculated in idle and load (the CPUs were stressed using instances of Orthos).
In idle, the 45nm CPU-based system's power consumption was measured to be 147W compared 154W of the 65nm CPU-based setup. In load, the margin increased with the 45nm CPU-based system running at 176W compared to 200W of the 65nm CPU-based setup.
Sources:
Zol, ITOCP
The 45nm and 65nm parts were compared on a MSI K9A2 Platinum motherboard with a NVIDIA GeForce GTX 280 card, a single 320 GB HDD, two modules of 1GB DDR2 1066 MHz memory, the test-bed was powered by a Thermaltake Toughpower 1200W PSU. Power consumption was calculated in idle and load (the CPUs were stressed using instances of Orthos).
40 Comments on AMD 45nm Deneb Consumes up to 12% Less Power Compared to 65nm Agena
AMD chipsets (both by AMD and NVIDIA) consume less power compared to their Intel counterparts (chipsets by NVIDIA and Intel), so much so that the same desktop chipsets by AMD make it to laptops. So the difference between a Phenom and Intel Quad in terms of CPU consumption is shadowed by the fact that the lower power consumption of Intel CPUs is marred by higher consumption of the MCH chips (northbridge).
Lower power is always better for my utility bills. I hope these clock well. I may wait on these instead of a 9850BE :D`
I am planning on buying a new PC at the end of august and I would love to go back to AMD, if these CPU's are decent offcourse.
The AMD 45nm Deneb will finally be able to compete with the Intel Q-series. But don't forget that Intel will release their next-gen CPU's only a month or two after AMD Deneb release.
They are not back, they are seriously behind...
I'd rather have two chips.
If say you wanted to sacrifice this energy saving could you not just pump some voltage through it to get to a higher clock - providing cooling is ok?