Lunatic_Gamer
Member
207mm² v.s. 118mm²
It's also larger than the RTX 3050 Ti (mobile) GPU, Apple M2, Ryzen 7840H (Z1 extreme) and Qualcomm's X elite.
Tape out year of the SoC was on 2021 as annotated on the die. They also looked at the RTX 3050 GPU die, which had a tape out year of 2020.
T239 brief summary.
- 8 Core A78C cores, with 4MB L3 Cache and 256kb L2 cache on each die
- The die area of the A78C is the same as the 8nm T234 orin, indicating the same process node.
- The C and AE suffix doesn't bear much meaning on the core design itself, but rather the ARM classification indicating Compute and Automotive and how the cores operating
- 6 TPC, 2SM/TPC, 1536 CUDA Cores
- Ampere design, although it's layout seems odd as the TPC's are separated
- The design of the GPU seems more alike to Ada Lovelace
- in terms of area of the TPC, the T239 is 22% smaller than the orin T234
- There are some differences in the chip design itself, it's not exactly 8nm and some aspects are closer to Samsung's 10nm process node fabrication.
- They highlight the previously "leaked" clocked speeds and like DF mention that its closest equivalent is the RTX 2050, although heavily downclocked.
- Like DF they also do a simulation of Switch 2 performance with the RTX 2050 downclocked as a proxy.
- The docked performance is aligned to the GTX 1050 Ti in docked mode and GTX 750 ti in handheld mode in Synthetic tests Steel Nomad Light
- It's far from the Xbox Series S and the closest mobile equivalent are Apple's A18 Pro, M1 in docked mode, and the Steam Deck is a bit better in handheld mode * They test Cyberpunk 2077, Black Myth Wukong, Monster hunter Wild, KCD2
- They also took a T234 board (Orin) and tested CPU performance through synthetics (geekbench 6)
- Downclocking it to 1.1 GHz and 1 GHz, its single core performance is twice as much as the PS4 and 3x the Switch, closest laptop equivalent is the i7-4700HQ.
- Closest mobile equivalent in multithreaded performance is the A12 in the iPhone, which btw has more than 2x the single threaded performance compared to the "Switch 2"
- They also used a downclocked i7-10700KF to approximate Switch 2's CPU performance
An even shorter tl;dr for just the die analysis:
- Very likely SEC8N based on gate pitch and die size
- 8 ARM-A78C CPU cores
- 4MB L3 cache shared between all CPU cores
- 256KB L2 cache per core
- 1536 CUDA cores Ampere arch (6 TPCs)
- 1MB L2 for the GPU
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