Intel Atom C3858 Benchmarks and Review 12 Cores at 25W

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PigLover

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Jan 26, 2011
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Noticed several of the bechmark charts on page 2 highlight the "C3758" and don't include "C3858". Is that a typo in the chart labels or did the charts select results from the wrong part?
 
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Patrick

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Dec 21, 2010
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That was very strange. It seems like Page 1 and 3 were right, but page 2 had a 2-step regression. It looks like a change due to browser caching. I think the right version is restored with the two small P1 / P3 tweaks.
 

nickf1227

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Sep 23, 2015
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I am very disappointed we haven't seen much headway in this market. Intel's release here is nice, but it is very iterative in nature. Compared to the market disruption with Epyc elsewhere in the stack, its a bit disappointing that AMD hasn't put alot of pressure down this low.

If we compare the C3858 (25 watts, 12c/12t) with a laptop grade Ryzen 7 4700U(15 watts 8c/8t) in PassMark, we see this:
1591240763682.png

If that doesn't speak volumes to how under-appreciated this market segment is by both vendors, I dont know what does.

The die size of the C3858 is 95.2 mm². The die size of the 4700U is 156 mm² (the difference here is explained by the fact that this chip as an iGPU). These aren't expensive chips to manufacture by any regard, the BOM cost is very low, and subsequently the margin is very high. Why are we being ignored? :(

Now as far as the Opteron X3421, that is basically a joke..I have a Microserver Gen10 and use it as a backup target...but hocking an Excavator (2011 era design, 2015 era revision) derived 28nm chip in 2020 is just inexcusable when they have come so far from that awful design.

And the EPYC 3251? $800+ for a M11SDV-8C-LN4F? Give me a break, AMD. If intel can hit the $500 pricepoint..so can you! Granted, this is a 213 mm² die, but it is also still a 14nm part vs the 4700U's 7nm. Shrink the die, rip out the iGPU and beat the pants off of these Atom parts!
 
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