AMD Ryzen 7 8700G Confirmed to Feature Maxed Out Radeon 780M Clocked at 2.90 GHz

[btarunr]

Hot on the heels of yesterday's leak revealing that the Ryzen 5 8600G Socket AM5 desktop APU features a Radeon 760M iGPU with 8 CU, we're getting to know that the top of the line Ryzen 7 8700G comes with the maxed out Radeon 780M. The 8700G is a Socket AM5 APU based on the 4 nm "Hawk Point" or "Phoenix" silicon (unclear at this point).

The Ryzen 7 8700G features an 8-core/16-thread CPU based on the "Zen 4" microarchitecture, with a base frequency of 4.20 GHz, and a maximum boost frequency of 5.10 GHz. Each of the 8 CPU cores features a 1 MB L2 cache, and they share a 16 MB L3 cache. The Radeon 780M iGPU features 12 compute units (CU), amounting to 768 stream processors. The iGPU engine clock boosts up to 2.90 GHz. While all Ryzen 7000 desktop processors come with integrated graphics, AMD does not consider them to be APUs—processors with overpowered iGPUs that can be used for entry-level gaming besides high-resolution entertainment.



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[Cheeseball]

Most likely $399 intro price adjusted for inflation compared from the previous $359 5700G. 7700X goes for around $349.

8600G for $299 or maybe $259 if we're lucky? Not too sure.

 

[piloponth]

Oh, that tiny 16MB L3 cache
Didn't the 7800X3D demonstrated, that huge L3 brings huge benefit in gaming? And yet, here we see 16MB

 

[Lew Zealand]

Oh, that tiny 16MB L3 cache
Didn't the 7800X3D demonstrated, that huge L3 brings huge benefit in gaming? And yet, here we see 16MB

These are Zen 4 APUs. If you want a Zen 4 gaming CPU, AMD has one for you:

The 7800X3D.

 

[Jism]

Oh, that tiny 16MB L3 cache
Didn't the 7800X3D demonstrated, that huge L3 brings huge benefit in gaming? And yet, here we see 16MB

That's not how it works.

The X3D cache is beneficial in games due to recurring CPU calls - instead of pulling it from main memory you cache it which makes it a zillion times faster.

Above APU is near RX580 performance. It will be sufficient for most cases.

I'm sure AMD internally tested out wether a APU with it's own HMB/X3D or so would be benefial or not. Likely the price would only increase.

 

[SL2]

Didn't the 7800X3D demonstrated, that huge L3 brings huge benefit in gaming?

NOT ALWAYS.

When running with premium GPU's it's great, but that's the least likely combination for this APU.

All that extra L3 cache doesn't make sense with mid range or slower GPU's. That's why a Ryzen 5 7600 + RX 7700 XT will give you much better gaming performance than a Ryzen 7 7800X3D + RX 7600, even though both combinations cost about the same.

 

[xSneak]

What is the limit on CUs they can put on the cpu before it is too memory starved from the ddr 5 to benefit ?

 

[Denver]

Most likely $399 intro price adjusted for inflation compared from the previous $359 5700G. 7700X goes for around $349.

8600G for $299 or maybe $259 if we're lucky? Not too sure.

From what was leaked, the prices are U$340 and U$240 for the R7 and R5 respectively.

 

[Daven]

What is the limit on CUs they can put on the cpu before it is too memory starved from the ddr 5 to benefit ?

There are rumors of upcoming 16 and 40 CU APUs. Dual channel DDR5 is probably enough for 16 CUs. Not sure about the rumored 40 CU version. Maybe it has on package GDDR6 memory or it doesn’t exist at all.

 

[AusWolf]

I'm sooo tempted to get a HTPC upgrade with one of these, even though I don't need it.

 

[Redwoodz]

Oh, that tiny 16MB L3 cache
Didn't the 7800X3D demonstrated, that huge L3 brings huge benefit in gaming? And yet, here we see 16MB

Try judging it by it's performance. Also runs much cooler than an X3D chip, which lends to higher clocks. Doesn't really hurt it much.

 

[FeelinFroggy]

These are Zen 4 APUs. If you want a Zen 4 gaming CPU, AMD has one for you:

The 7800X3D.

Actually the 8700g is based on Zen 4 microarchitecture. At least that is what the article says.

Comparing this to the 78003dx is not an apples and apples. While the 78003dx is a great chip, alone it wont perform better than the 8700g because the iGPU if the 8700g is much better.

That's what is important here, the iGPU. Not how much L3 cache the CPU has compared to the 78003dx.

 

[Night]

I'm not sure why L1 cache size isn't specified here, TPU found L1 cache size for 5700G to be 512 KB, yet that isn't specified on AMD's spec page either. People shouldn't focus so much on L3 cache size, it's after all the slowest SRAM of the 3 levels. L1 and L2 caches are also important as they're being used by most common CPU instruction sets.

 

[TumbleGeorge]

I'm not sure why L1 cache size isn't specified here, TPU found L1 cache size for 5700G to be 512 KB, yet that isn't specified on AMD's spec page either. People shouldn't focus so much on L3 cache size, it's after all the slowest SRAM of the 3 levels. L1 and L2 caches are also important as they're being used by most common CPU instruction sets.

L1 cache is the same already third generation 32+32KB L1 i/d per core. A change on this front of the architecture doesn't come until the fall with processors with the ZEN 5 architecture.

 

[GhostRyder]

I am always excited to see what GPU performance they can pull with latest iterations of their APU's. Want to see some gaming benchmarks for this one!

 

[N3utro]

That's not how it works.

The X3D cache is beneficial in games due to recurring CPU calls - instead of pulling it from main memory you cache it which makes it a zillion times faster.

Above APU is near RX580 performance. It will be sufficient for most cases.

I'm sure AMD internally tested out wether a APU with it's own HMB/X3D or so would be benefial or not. Likely the price would only increase.

They never said it would be above APU performance, they said they dont consider these processors APUs.
The 3D performance of that processor will probably below a low end dedicated gpu card. Which is as they said, enough for "entry level gaming".

 

[john_]

Hope they support HDMI 2.1.

Above APU is near RX580 performance. It will be sufficient for most cases.

Too optimistic I think. In some benchmarks maybe, in gaming, I doubt.

What is the limit on CUs they can put on the cpu before it is too memory starved from the ddr 5 to benefit ?

Looking at Stream Deck vs ROG Ally performance, I would say that the limit is already reached. The iGPU needs Infinity cache.
Another idea is to have a return of the Sideport Memory.

 

[close]

Give me a GE version and a decent price and I'm sold. Higher end GE parts from the 5th gen are hard to come by (like the 5850GE).