AMD 780G Chipset / AMD Athlon X2 4850e Platform Review :: Energy Efficient AMD Athlon X2 4850e Dual-Core Processor

03-05-2008 · Category: Hardware - Processors

By Ben Sun


Processor:energy efficient AMD Athlon™ X2 4850e dual-core processor
CPU Core Count:2
Operating Frequency:2.5GHz
L1 Cache Size:64K - L1 instruction + 64K - L1 data cache per-core (256KB total L1)
L2 Cache Size:512KB L2 data cache per-core (1MB total dedicated L2 cache)
Manufactured:Fab 36 / Dresden, Germany
Process Technology:65-nanometer DSL SOI (silicon-on-insulator) technology
Packaging:Socket AM2 (940-pin organic micro PGA)
HyperTransport Spec:One 16-bit/16-bit link @ 2.0GHz (1GHz DDR) full duplex (up to 8.0 GB/sec bandwidth)
Memory Controller:One integrated 128-bit dual-channel memory controller (up to 12.8GB/sec bandwidth)
Supported Memory Speeds:DDR 2 memory up to and including PC2 6400 (DDR2-800) unbuffered
Total Processor bandwidth:Up to 20.8 GB/sec
Approximate Transistor count:221 million
Approximate Die Size:118 mm2
Nominal Voltage:1.15/1.20/1.25 V
Max Thermal Power:45W
Max Ambient Case Temp:78o Celsius
Max Processor Current:36.5 A
Min P-State (power management):1.0 GHz
  • Nominal Voltage @ min P-state: 1.0 V
  • Max Thermal Power @ min P-state:n18.1 W
  • Max Current @ min P-state: 15.1A

The specifications on AMD's new energy efficient AMD Athlon™ X2 4850e dual-core processor should look familiar to anyone who has owned a AMD X2 4800 as they are identical in every way. The clock speed of the CPU is at 2.5GHz, there are 64Kb of L1 cache per core, and two L2 caches of 512KB for each core. The CPU is designed to have a maximum thermal power usage of 45W, which is similar to the power draw of the earlier AMD Athlon X2 2300 CPUs.

AMD 780G Chipset / AMD Athlon X2 4850e Platform Review 4850e CPU

4850e CPU

The 4850e is built upon AMD's 65 nanometer Silicon on Insulator (SOI) process with 221 million transistors, the same as their other X2 CPUs. There are two CPU cores on the same die, each having its own L1 and L2 cache. The big push with the 4850e is the push towards a energy efficient CPU with the same performance as the bigger power drawing CPU. DDR2 memory up to 800MHz is supported by the 780G chipset. Today there is memory that clocks above that.