AMD’s introduction of the Radeon Mobility HD 4830 and 4860 products adds another feather into an already impressive cap: these GPUs are the world’s first production parts based on a 40nm process.
In fact, AMD has a rather storied history in notable market first: 90nm, 80nm, 65nm, 55nm, DirectX 10.1 support, commercial GDDR5, WHQL Windows Vista drivers, and a unified shader architecture. The addition of the 40nm crown will be a real boon to the swelling crop of power-conscious enthusiasts always in search of the faster, colder part.
The 4830 employs GDDR3/DDR3 memory and a core clock of 450-600MHz, while the 4860 uses GDDR5 and clocks in at 650MHz. Both GPUs have 826 million transistors and 640 stream processors coupled to a 128-bit memory interface.
This announcement should put a bee in the NVIDIA bonnet as it has been widely reported that the firm’s current crop of GPUs may be incompatible with a 40nm shrink.
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