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Intel "Nova Lake‑AX" APU Enhances iGPU Performance with Plenty of Xe3 Cores

Look up Broadwell. It had a 4th level cache that was blazing fast before the memory controller.

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I wouldn't say the 50GB/s duplex were "blazing fast" for a last level cache, especially compared to AMD's Infinity Cache reaching 2TB/s on Navi 21. The small discrete GPUs with 128bit GDDR5 at the time started at 72GB/s.


The Zen+ APUs with a Vega iGPU and DDR4 3200 (~51.2GB/s dual-channel) would easily pass over it.

It still made wonders for the longevity of that chip at the time but it was adequate for the iGPU, it's not like it was over-engineered.
 
I wouldn't say the 50GB/s duplex were "blazing fast" for a last level cache, especially compared to AMD's Infinity Cache reaching 2TB/s on Navi 21. The small discrete GPUs with 128bit GDDR5 at the time started at 72GB/s.


The Zen+ APUs with a Vega iGPU and DDR4 3200 (~51.2GB/s dual-channel) would easily pass over it.

It still made wonders for the longevity of that chip at the time but it was adequate for the iGPU, it's not like it was over-engineered.
Zen+ and Navi 21 released four and five years later on later DDR platforms and much newer processes, one of those is a dedicated GPU so isn't even comparable.

Broadwell was a 2014 part running on DDR3. AMD didn't have anything faster for gaming until Zen 2 five years later. The cache worked, and Intel did it eight years before the 5800X3D, which had a more advanced approach, but was still just slapping more cache on in bulk, not even to the same amount as Broadwell did with 128 MB, but with a 64 MB SRAM die.

OFC, the Broadwell was a higher level cache and not contiguous, but those technologies weren't available at the time.
 
Look up Broadwell. It had a 4th level cache that was blazing fast before the memory controller.

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Yes, i am aware. There is also another great Last Level Cache that is well known: AMD Infinity Cache. But speed in the context of memory can mean many things, but most often a mix of Bandwidth and latency.

Last level cache work great for GPU as they can greatly increase bandwidth but they aren't doing as good as CPU side cache on the latency side.

GPU are less dependent on latency than CPU and it's opposite for bandwidth. It would still be an improvement over nothing but it will have a smaller impact than X3D cache on CPU performance in gaming by example.

I am just lowering the performance expectation but it should still be a great addition to the SoC.
 
Zen+ and Navi 21 released four and five years later on later DDR platforms and much newer processes, one of those is a dedicated GPU so isn't even comparable.
Ok, then if you want a more comparable solution you have the XBox One SoC that uses eDRAM with 100GB/S duplex or 200GB/s effective, released 1 year before Broadwell and on a process that was 2 generations older.

My only point was that Broadwell's cache wasn't that fast. Though it was perfectly adequate which was proven by that iGPU's graceful ageing.


Broadwell was a 2014 part running on DDR3. AMD didn't have anything faster for gaming until Zen 2 five years later.
Again, AMD did it in 2013 with Durango, also on DDR3.

Also, AMD's first Zen 1 APU e.g. the Ryzen 5 2400G was already a lot faster than Broadwell. Those are less than 3.5 years apart, not 5.

 
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