A truly innovative feature - the Playstation 4's world-famous vector co-processor. It's connected to a CPU core. It doesn't look like much on paper:
- 100 million transistors
- 300 mhz
- $25 to produce
- 25 nm production process
- 16-way SIMD floating-point multiply-add instructions (512-bit)
- 1024-bit load-store instructions
- 512 Kbytes local memory
- L2 cache of the X86 CPU
- Write-to-memory feature - bypassing the CPU
- Has a connection to the instruction dispatch of a regular x86 Jaguar core
It doesn't look like much, except for the 16-way multiply-adder! Besides that though - it only costs $25.00. "How can $25.00 worth of CPU logic improve the graphics pipeline?" Thus - top-secret alien technology. The world-famous vector co-processor. With it - developers can pull off pretty amazing effects, in real-time. I've already seen:
- Full-screen per-pixel lighting! Pretty amazing - I haven't seen any games do that.
- Extremely realistic fire effects
- Extremely realistic ice simulation
- Massive degrees of normal/displacement mapping
And this is just the start.
Feel free to continue this discussion at the linked thread below:
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