RX 550 vs A10-7890K APU (both with 512 sp)

S

Shaq

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Hi guys,

It's pretty interesting, the smallest Polaris SKU has the same number of Streaming Processors as the latest and biggest Godavari APU, the A10-7890K. (Bristol Ridge is still missing ...)

Two yt vids comparing the RX550 and the APU:






The perf delta is about 1.5 to 2.0x to the dGPU. :)
 
That's hopefully no surprise to anyone. This is also why the APU dreams is so silly.
 
Shintai said:
That's hopefully no surprise to anyone.
Click to expand...
When pairing the discrete card with a CPU that has 3MB of L3 cache and a vastly superior architecture, of course it isn't.

They should've benched the 550 with either an 880K or the 7890K with the iGPU disabled.

I'm not at all certain that it would've made a significant difference, as dGPUs will always have the physical advantage of a separate PCB with faster RAM; I'm just saying that an iGPU is only as good as the CPU to which it's mated, and things like eDRAM/HBM, memory bandwidth, and cache size play a role.
 
the gpu embedded in that top end apu hasn't changed in several generations. its still essentially the hd 7750.
 
rennyf77 said:
the gpu embedded in that top end apu hasn't changed in several generations. its still essentially the hd 7750.
Click to expand...

Is it even that good? I still use a 7770 as my primary display adapter. I'm kind of fond of it since it found seven litecoin blocks solo mining.
 
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its absolutely a slower clocked hd 7750. i posted a review of the a10 7850k a few years ago. you can oc the gpu portion of the apu; i think i got it up to 900mhz paired with 2400mhz ddr3, but its still slower than a discrete hd 7750. the video is comparing a gcn 1.0 part to a gcn 4.0 part. i'm surprised the performance delta is even greater.
 
Many Godvari apus can do over 1100 on the gpu which bring it pretty close to this turd.

Not sure what the apu "dream" is about. They were NEVER meant to replace a dGPU, only as a means to build a small system for light gaming.

Current apus are only good for 720p and some 1080p on low settings.
The new Raven Ridge should be able to handle 1080p on high or better.
 
Nihilus1 said:
The new Raven Ridge should be able to handle 1080p on high or better.
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Unless the bandwidth changes radically the APU isn't going nowhere for sure. And then we dont even have to talk about all the other issues like TDP etc. The RX550 got 112GB/sec bandwidth for example.
 
The A88x maxed out at 2400 to 2500 mhz with ddr3. Hopefully mature am4 chipsets will hit closer to 4000 mhz with ddr4. Should help quite a bit not to mention the faster igpu.
 
Nihilus1 said:
The A88x maxed out at 2400 to 2500 mhz with ddr3. Hopefully mature am4 chipsets will hit closer to 4000 mhz with ddr4. Should help quite a bit not to mention the faster igpu.
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There are some videos that show A12-9800 running at DDR4-2614, but that's it. It's still not launched official though, so no support etc.
 
Again, why do they keep pairing a discrete card with a CPU that crushes the 7890K?

Either test with an Athlon or disable the iGPU.
 
So, what about a RX 560? is it the real sweet spot between the 550 and 570? I am in the market to replace a R9 380 i just sold and want an RX 500 series to work in pass through in ESXi (hopefully)
 
For the record, there are new benchmark sequences now with the A10 with disabled iGPU paired with the RX 550.







Best case scenario diff: x1.8 - F1 2016
Avarage diff: x2.2 - BF1, Dirt4
 
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