This are the official Specifications for the Sony Playstation 3 (PS3)
CPU

Cell Processor
PowerPC-base Core @3.2GHz
1 VMX vector unit per core
512KB L2 cache
7 x SPE @3.2GHz
7 x 128b 128 SIMD GPRs
7 x 256KB SRAM for SPE
1 of 8 SPEs reserved for redundancy
total floating point performance: 218 GFLOPS

GPU

RSX @550MHz
1.8 TFLOPS floating point performance
Full HD (up to 1080p) x [...]

This are the official System Specifications for the Sony Playstation 3 (PS3)
System Bandwidth

Main RAM 25.6GB/s
VRAM 22.4GB/s
RSX 20GB/s (write) + 15GB/s (read)
SB< 2.5GB/s (write) + 2.5GB/s (read)

System Floating Point Performance

2 TFLOPS

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This are the official Memory specifications for the Sony Playstation 3 (PS3)
MEMORY

256MB XDR Main RAM @3.2GHz
256MB GDDR3 VRAM @700MHz
System Bandwidth Main RAM– 25.6GB/s
VRAM–22.4GB/s
RSX– 20GB/s (write) + 15GB/s (read)
SB2.5GB/s (write) + 2.5GB/s (read)

More About: Memory specifications, Sony Playstation 3, PS3