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macduke

macrumors G5
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Jun 27, 2007
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macduke

macrumors G5
Original poster
Jun 27, 2007
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Analysis: This seems like a pretty good jump on the multicore, roughly equivalent to M2 Ultra! But for OpenCL, it’s an improvement, but not significant. It’s a higher score than OpenCL for any previous Max chip, but I would think it would be higher? Need some Metal scores.
 

Christoph_SK

macrumors newbie
Oct 27, 2021
17
13
Blender 3.6 Benchmark
M3 Max between M2 Ultra 60 and 76 GPU cores. Blender 4.0 should give additional performance gains (let's wait and see...)
A few percent points below 3070 Laptop GPU so lets see what kind of improvements RT support in version 4.0 will bring
 

leman

macrumors Core
Oct 14, 2008
19,409
19,489
Blender 3.6 Benchmark
M3 Max between M2 Ultra 60 and 76 GPU cores. Blender 4.0 should give additional performance gains (let's wait and see...)
A few percent points below 3070 Laptop GPU so lets see what kind of improvements RT support in version 4.0 will bring

I am curious whether this is with or without Metal RT enabled. If this is using cycles-internal compute-based RT, then the improvement is absolutely staggering. If this is with Apple's hardware RT, the improvement is merely good (lower than I would expect to be honest).
 

leman

macrumors Core
Oct 14, 2008
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Isn't the version with support for Apple's hardware RT supposed to be 4.0?

Blender has supported a Metal RT backend for a while, the 4.0 is merely enabling it by default on M3 and later. Anyway, Geekerwan has done some quick raytracing tests and the M3 Max seems to be on par with OPTIX 4060 (desktop)/4070 (laptop), which is a very nice result (and would be 2x faster than M2 Max!). Looking forward to official Blender benchmark results!

P.S. Based on Geekerwan's tests, the M3 Max result in the 3.6 database is without hardware RT. This is a very impressive improvement just from Dynamic Caching and the improved GPU scheduling, and it illustrates how inefficient GPUs are when running complex shaders.
 

galad

macrumors 6502a
Apr 22, 2022
557
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Blender 3.6 and earlier already supports MetalRT, with a few bugs and an "experimental" label. In 4.0 bugs were fixed and more tuning was done.
Anyway, it seems to be a 2x speedup over the M2.
 
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jeanlain

macrumors 68020
Mar 14, 2009
2,448
942
P.S. Based on Geekerwan's tests, the M3 Max result in the 3.6 database is without hardware RT.
How did you come to this conclusion, for us mere mortals (who can't watch a YouTube video right now)?

This is a very impressive improvement just from Dynamic Caching and the improved GPU scheduling, and it illustrates how inefficient GPUs are when running complex shaders.
In games, do you think dynamic caching would improve the lowest frame rates in particular? I suppose the most complex scenes are those that run at lower frame rates.
 
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leman

macrumors Core
Oct 14, 2008
19,409
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In games, do you think dynamic caching would improve the lowest frame rates in particular? I suppose the most complex scenes are those that run at lower frame rates.

I doubt that many games have shaders that can benefit much from the new technology. Although Geekerwan did record some nice improvements in BG3.
 

leman

macrumors Core
Oct 14, 2008
19,409
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How did you come to this conclusion, for us mere mortals (who can't watch a YouTube video right now)?

His tests with hardware RT enabled show a bigger improvement. Max with RT on should be comparable to desktop 4060 with OPTIX
 
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ArkSingularity

macrumors 6502a
Mar 5, 2022
927
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Apple should sell the M3 MAX with 40 GPU cores and with at least 20 CPU cores and not only 16 cores.
The benchmark results would be much better.
Apple also forgot to sell the M3 MAX with ARMv9.2.
They're probably thinking about power consumption on the 14" and 16" devices. The full M3 Max already throttles a bit on the 14" due to thermal/power constraints.

The ultra is going to be a massive step ahead of anything we've seen before from Apple though.
 

Appletoni

Suspended
Mar 26, 2021
443
177
They're probably thinking about power consumption on the 14" and 16" devices. The full M3 Max already throttles a bit on the 14" due to thermal/power constraints.

The ultra is going to be a massive step ahead of anything we've seen before from Apple though.
That's why I bought the 16-inch MacBook Pro M3 MAX maxed out.
Yes we all are still waiting for the MacBook Pro M3 ULTRA, probably 18-, 19- or 20-inch.
 

Pressure

macrumors 603
May 30, 2006
5,123
1,476
Denmark
I doubt that many games have shaders that can benefit much from the new technology. Although Geekerwan did record some nice improvements in BG3.
In 1080p (and CPU limited) the performance in Baldur's Gate 3 on the M3 Max has increased by 19%, at 1440p the performance increase is 33% and at 2160p the increase is 35% compared to the M2 Max.
 
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