Question AMD Phoenix/Zen 4 APU Speculation and Discussion

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jpiniero

Lifer
Oct 1, 2010
12,811
4,098
136
The 7840U (if that is its name) is missing. It is shaping up to be in almost no designs like the 6800U before it.
Really would like to know the reason why this keeps happening.
The price and DDR5. That's why the crazy naming scheme is there - AMD lost out on sales of Barcelo because OEMs didn't like that it looked old.
 

RnR_au

Senior member
Jun 6, 2021
961
2,522
96
Can the Intel 13th gen beat a 6800U/7735U on efficiency?

Sounds like AMD is splitting up the product lines to provide capacity to its partners while still being able to compete across the various classes?

Rembrandt-R (N6) - cheap and still performant in the 15W segment
Phoenix (N5) - HS segment for premium revenue gathering - also has the AI for extra revenue raising
Dragon (N5) - HX segment - letting the Zen 4 cores scale with power to compete in the upper range gaming laptops

I personally hope to see a 7840HS on a 14" model that can do a tent stand with good USB4 (Thunderbolt 3), but I fear the prices will be exorbitant. But it should be easier to get a 7035 class unit since AMD should be able to saturate their channels with N6 sku's.
 

Kaluan

Senior member
Jan 4, 2022
429
897
96
Ultrathin 7040
7840U
- 5GHz boost, 3GHz base
- 6WGP, 2900MHz
7640U
- 5GHz boost, 3,5GHz base
- 4WGP, 2800MHz

Launching Q2

Desktop AM5
7700G - $329 (PIB)
- 5,2GHz boost, 4,5GHz base
- 6WGP, 3000MHz, DDR5-5600
7600G - $249 (PIB)
-5GHz boost, 4,7GHz base
- 4WGP, 2800MHz, DDR5-5600

Launching Q3 (possibly OEM only)

Fanless Ultrathin 7040
7740e/Ue
- 2+4/12t
- 2WGP
7540e/Ue
- 2+4/12t
- 2WGP
7340e/Ue
- 2+2/8t
- 1WGP

Launching Q3


There you go, mystery solved 😛

Neah, but loosely that should be it. Availability's prolly gonna be a pain tho.
 

guidryp

Platinum Member
Apr 3, 2006
2,930
3,876
136
Ultrathin 7040
7840U
- 5GHz boost, 3GHz base
- 6WGP, 2900MHz
7640U
- 5GHz boost, 3,5GHz base
- 4WGP, 2800MHz

Launching Q2

Desktop AM5
7700G - $329 (PIB)
- 5,2GHz boost, 4,5GHz base
- 6WGP, 3000MHz, DDR5-5600
7600G - $249 (PIB)
-5GHz boost, 4,7GHz base
- 4WGP, 2800MHz, DDR5-5600

Launching Q3 (possibly OEM only)

Fanless Ultrathin 7040
7740e/Ue
- 2+4/12t
- 2WGP
7540e/Ue
- 2+4/12t
- 2WGP
7340e/Ue
- 2+2/8t
- 1WGP

Launching Q3


There you go, mystery solved 😛

Neah, but loosely that should be it. Availability's prolly gonna be a pain tho.
Source?
 
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Tigerick

Member
Apr 1, 2022
129
150
76
Ultrathin 7040
7840U
- 5GHz boost, 3GHz base
- 6WGP, 2900MHz
7640U
- 5GHz boost, 3,5GHz base
- 4WGP, 2800MHz

Launching Q2

Desktop AM5
7700G - $329 (PIB)
- 5,2GHz boost, 4,5GHz base
- 6WGP, 3000MHz, DDR5-5600
7600G - $249 (PIB)
-5GHz boost, 4,7GHz base
- 4WGP, 2800MHz, DDR5-5600

Launching Q3 (possibly OEM only)

Fanless Ultrathin 7040
7740e/Ue
- 2+4/12t
- 2WGP
7540e/Ue
- 2+4/12t
- 2WGP
7340e/Ue
- 2+2/8t
- 1WGP

Launching Q3


There you go, mystery solved 😛

Neah, but loosely that should be it. Availability's prolly gonna be a pain tho.
Haha, good one. May I add that PHX2 might only support single channel of LPDDR5-7500x which provides total bandwidth of 60GB/s. Half of PHX1 but should be enough for 2P+4E and 4 CU. At least compared to i3-N300, the extra speed helps.. :D
 

TESKATLIPOKA

Golden Member
May 1, 2020
1,280
1,527
106
View attachment 74162

It is 1536ALU with lower clock speed, pretty impressive
Great info. Many thanks. It's very hard to find out the actual info for SoC IGPs.

Adreno 730: 1024 ALU * 2 FLOPs * 900 = 1843 GFLOPs (100%)
Adreno 740: 1536 ALU * 2 FLOPs * 680 = 2089 GFLOPs (113%)
The difference in FLOPs is pretty small.

It's also very interesting that in 3DMark Wild Life Extreme Unlimited Adreno 740 and Rembrandt 680M score very close, yet TFLOPs are 2089 vs 3686 or 76.5% more for Rembrandt IGP.
 

DrMrLordX

Lifer
Apr 27, 2000
20,487
9,563
136
"Windows Studio" effects are exclusive to devices with dedicated AI hardware, iirc, so like it or not, it'll probably be important to have going forward.
For those that don't know:


(I didn't until I looked it up)
 

FlameTail

Senior member
Dec 15, 2021
210
54
61
Great info. Many thanks. It's very hard to find out the actual info for SoC IGPs.

Adreno 730: 1024 ALU * 2 FLOPs * 900 = 1843 GFLOPs (100%)
Adreno 740: 1536 ALU * 2 FLOPs * 680 = 2089 GFLOPs (113%)
The difference in FLOPs is pretty small.

It's also very interesting that in 3DMark Wild Life Extreme Unlimited Adreno 740 and Rembrandt 680M score very close, yet TFLOPs are 2089 vs 3686 or 76.5% more for Rembrandt IGP.
So Adreno is a desktop class GPU architecture? This bodes well, since Qualcomm is looking to become a major player in the PC market with their upcoming Nuvia based SoCs
 

guidryp

Platinum Member
Apr 3, 2006
2,930
3,876
136
So Adreno is a desktop class GPU architecture? This bodes well, since Qualcomm is looking to become a major player in the PC market with their upcoming Nuvia based SoCs
Adreno is an anagram of Radeon. This was a mobile solution developed by AMD in the early 2000's and sold to Qualcomm in 2009, so I would bet it has a lot in common with early 2000's Radeon GPUs. I have no idea how much Qualcomm updated since then.
 

moinmoin

Diamond Member
Jun 1, 2017
4,176
6,253
136
For those that don't know:


(I didn't until I looked it up)
So if I understood that correctly it already exists for ARM devices and can be applied to video input regardless of the video call software used?
 

DrMrLordX

Lifer
Apr 27, 2000
20,487
9,563
136
So if I understood that correctly it already exists for ARM devices and can be applied to video input regardless of the video call software used?
I'd have to dig into it more but if that's what the article is saying, then yes that may well be the case.
 

jams3223

Junior Member
Jan 8, 2023
6
4
36
Great info you guys, i am new to this forum and i am excited to get my hand on a 7040HS laptop also is AMD using some arm also RISC-V instruction set for their Xilinx AI cores.
 

Tigerick

Member
Apr 1, 2022
129
150
76
I just saw video at BB stated the A1 steppings of PP has some issues that cause low score of Timespy of 2600 which is same as Rembrandt. There is new B steppings which supposedly to be retail version...no words on availability though o_O
 

TESKATLIPOKA

Golden Member
May 1, 2020
1,280
1,527
106
I just saw video at BB stated the A1 steppings of PP has some issues that cause low score of Timespy of 2600 which is same as Rembrandt. There is new B steppings which supposedly to be retail version...no words on availability though o_O
Is It only in Timespy or also in games?
Is It possible what they tested for press release was this A1 stepping and that's why there was only 21% improvement showed?
Just a speculation.
 
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Tigerick

Member
Apr 1, 2022
129
150
76
Is It only in Timespy or also in games?
Is It possible what they tested for press release was this A1 stepping and that's why there was only 21% improvement showed?
Just a speculation.
Only Timespy being mentioned, he did say new steppings supposedly have Timespy score of 4000...guess we are in waiting time
 
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