Home Update Hot Chips 2020 Live Blog: Microsoft Xbox Series X System…

Hot Chips 2020 Live Blog: Microsoft Xbox Series X System…

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Hot Chips 2020 Live Blog: Microsoft Xbox Series X System...


09:04PM EDT – Final discuss of the day is Xbox Series X System Architecture!

09:05PM EDT – Azure Silicon Architecture Team

09:06PM EDT – 3.eight GHz Zen2 Server cores

09:06PM EDT – DXR, VRS, Machine LEarning Acceleration

09:07PM EDT – 14 Gbps GDDR6, 320-bit = 560 GB/s

09:07PM EDT – Hardware accelerators in blue

09:07PM EDT – 120 Hz assist, VRR, Xbox Velocity Architecture for MSP Crypto/Decomp on NVMe SSD

09:07PM EDT – Acoustic acceleration

09:07PM EDT – HSP/Pluton RoT – safety

09:08PM EDT – 360.4mm2 TSMC N7 enhanced

09:08PM EDT – 15.3B transistors

09:08PM EDT – 2 4 core CPU clusters

09:08PM EDT – 10 GDDR6 controllers

09:09PM EDT – GPU 12 FLOPs

09:10PM EDT – AVX256 offers 972 GFLOP over CPU

09:10PM EDT – 16 GB of GDDR6 complete

09:11PM EDT – >Says Zen2 server class, however L3 cache is cell class?

09:11PM EDT – Display processing is stored off the shader engines

09:11PM EDT – IO hub helps PCIe 4.zero x8

09:11PM EDT – Operates on linear gentle values, not gamma gentle values

09:12PM EDT – ALLM – Auto Low Latency Mode

09:13PM EDT – Increased die value on this APU over earlier technology

09:13PM EDT – Significantly costlier!

09:13PM EDT – Trade off

09:13PM EDT – MS created Audio engines – Three engines, CFPU2, MOVAD, LOGAN

09:13PM EDT – CFPU2 for audio convolution, FFT, reverb

09:14PM EDT – akin to Project Acoustics to mannequin 3D audio sources

09:14PM EDT – MOVAD – hyper real-time {hardware} audio decoder

09:14PM EDT – >300x channels decode directly

09:14PM EDT – greatest commerce off codec, so made in {hardware}

09:15PM EDT – >100dB sign noise ratio

09:15PM EDT – HW realtime real-time matched to decode primarily based on sampling

09:15PM EDT – Logan is providing additionally higher offload in conventional modes

09:15PM EDT – HSP/Pluton: Root of belief, crypto, SHACK (crypto keys)

09:15PM EDT – MSP helps 5 GB/s high-bw crypto on the SSD

09:16PM EDT – DRAM to SSD steadiness wanted for refill

09:16PM EDT – Load occasions are all the time rising until SW-to-DRAM bw will increase, therefore NVMe SSDs

09:17PM EDT – Sampler Feedback System

09:17PM EDT – New metadata for texture parts to pre-load texture caches

09:17PM EDT – Direct Storage

09:17PM EDT – Manages knowledge areas forward of developer

09:18PM EDT – Distinct financial savings for many element texture maps financial savings

09:18PM EDT – Lossless MS XVA 2:1 compression

09:19PM EDT – Need massive GPU – get the tech out of the way in which

09:19PM EDT – Need uncooked ops/second enhance inside PPA and price

09:19PM EDT – 12.2 supported in HW

09:19PM EDT – 26 lively twin CUs (52 CUs)

09:20PM EDT – single geometry helps primatives

09:20PM EDT – DIrectly snoop CPU caches

09:20PM EDT – Dual stream multi-core command processor

09:20PM EDT – Double charge 16-bit math

09:20PM EDT – single cycle challenge charge to scale back stalls

09:21PM EDT – CUs have 25% higher perf/clock in comparison with final gen

09:21PM EDT – GPU Evolution: FLOPS have outpaced mem house and BW

09:21PM EDT – Screen pixels has elevated in th emiddle

09:22PM EDT – How to fill pixels higher with out blowing energy funds

09:22PM EDT – VRS

09:22PM EDT – helps as much as 2×2

09:22PM EDT – 10-30% perf achieve for tiny space value

09:23PM EDT – Full edge element

09:23PM EDT – SFS

09:24PM EDT – Previously very gradual to allow

09:24PM EDT – Two new HW constructions for tile-by-tile administration for in-DRAM textures

09:25PM EDT – clamps LOD

09:26PM EDT – Tilemaps ought to keep on die for greatest latency

09:27PM EDT – SFS: 60% IO/Mem financial savings for small die space value

09:27PM EDT – DX Ray Tracing Accel

09:27PM EDT – Not a whole alternative – RT might be utilized selectively primarily based on conventional fashions

09:28PM EDT – Custom ray-triangle items

09:28PM EDT – ML inference

09:29PM EDT – Two virtualized command streams – two VMs

09:29PM EDT – Main title OS vs system OS

09:29PM EDT – 32b HDR rendering, mixing show

09:29PM EDT – Optimized video games. Unable to point out on the occasion

09:30PM EDT – Q&A Time

09:31PM EDT – Q: TDP?…



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