@jahnee said:
I have never seen a more marketing jargon filled console announcement, no actual playable games shown, no specs shown, no UI, no console or controller but just usual MS jargon tossed around. What a missed oppertunity by M$. I still know nothing of this console other than what was already logical.
AMD's hardware accelerated ray-tracing is not yet ready.
MS revealed APU size relative to GDDR6 memory modules.
Sony has revealed 8 core Zen v2 CPU for PS5.
---
AMD has revealed NAVI RX 5000 GPU series for PS5.
RX 5700 has similar chip area size to RX-480 "Polaris" and 7870 "Pitcairn" GPUs which are baseline GPU design for PS4 Pro and PS4 respectively.
GPU chip area size list
NVIDIA RSX = 258 mm2 for PS3
AMD RX-480 "Polaris" = 232 mm2 for PS4
AMD 7870 "Pitcairn" = 212 mm2 for PS4 Pro
AMD RX 5700 "NAVI ???" = 222.5 mm2 (see reference note 1)
1. https://wccftech.com/amd-navi-rx-5700-is-only-the-mid-range-brings-rtx-2070-performance-at-half-the-die-size/
https://www.techpowerup.com/gpu-specs/geforce-rtx-2070.c3252
RTX 2070's 445 mm2 / 2 = 222.5 mm2
Sony is consistent with GPU selection chip area size.
PS5's GPU count be slightly larger due to semi-custom IP blocks from the next GPU design.
Sony mentions 8K which refers to HDMI 2.1's main feature. HDMI 2.1 also comes with AMD's FreeSync, hence locked 60 hz is not required.
---
Sony mentions ray-tracing with audio feature for PS5 which corresponds to AMD's Radeon Rays 3.0 "BHV search" enhancements with TrueAudio Next. https://gpuopen.com/gaming-product/true-audio-next/
The TAN library may be used in conjunction with Radeon Rays as foundational accelerated algorithms for a complete physics-based audio solution.
8 core Zen 2 chiplet size is about 70 mm2 https://www.reddit.com/r/Amd/comments/9uskmh/zen_2_die_size/
PS5 doesn't need desktop Zen v2 PC's IO north-bridge chip.
PS5: 70 mm2 + 223 mm2 = 293‬ mm2 for AMD's main GPU and CPU IP blocks covered.
PS4 APU total area size = 348 mm2
PS4 Pro APU total area size = 321 mm2
Sony has a reasonable chip area budget for semi-custom designs e.g. 55 mm2 chip area for custom work e.g. ray-tracing accelerator or slightly larger NAVI GPU.
---
Xbox Scorpio APU has 359 mm2 chip area size with larger GPU in the 285 mm2 range.
----
Both Vega II and Zen v2 supports Infinity Fabric interconnects hence CPU can directly connect to the GPU. One could assumes NAVI also supports Infinity Fabric interconnects.
GPU already has memory controllers.
https://www.theinquirer.net/inquirer/news/3075196/amd-cray-supercomputer
In AMD/Cray's supercomputer, Zen CPU is connected to Vega II GPU via Infinity Fabric interconnects
Ungaro continued: "The new accelerator-centric compute blades will support a 4:1 GPU to CPU ratio with high-speed AMD Infinity Fabric links and coherent memory between them within the node.
Raven Ridge APU's CPU and GPU are also connected by Infinity Fabric links.
Small north-bridge I/O would be needed for any south-bridge functions and north-bridge driven storage solutions.
Log in to comment