Testing The World’s Best APUs: Desktop AMD Ryzen 4750G, 4650G and 4350G
by Dr. Ian Cutress on December 16, 2020 10:30 AM ESTCPU Benchmarks: Synthetic
All of our benchmark results can also be found in our benchmark engine, Bench.
Dwarf Fortress 0.44.12: Link
Emulating the ASCII interfaces of old, this title is a rather complex beast, which can generate environments subject to millennia of rule, famous faces, peasants, and key historical figures and events. The further you get into the game, depending on the size of the world, the slower it becomes as it has to simulate more famous people, more world events, and the natural way that humanoid creatures take over an environment. Like some kind of virus.
For our test we’re using DFMark. DFMark is a benchmark built by vorsgren on the Bay12Forums that gives two different modes built on DFHack: world generation and embark. These tests can be configured, but range anywhere from 3 minutes to several hours. After analyzing the test, we ended up going for three different world generation sizes:
- Small, a 65x65 world with 250 years, 10 civilizations and 4 megabeasts
- Medium, a 127x127 world with 550 years, 10 civilizations and 4 megabeasts
- Large, a 257x257 world with 550 years, 40 civilizations and 10 megabeasts
Dolphin v5.0 Emulation: Link
Many emulators are often bound by single thread CPU performance, and general reports tended to suggest that Haswell provided a significant boost to emulator performance. This benchmark runs a Wii program that ray traces a complex 3D scene inside the Dolphin Wii emulator. Performance on this benchmark is a good proxy of the speed of Dolphin CPU emulation, which is an intensive single core task using most aspects of a CPU. Results are given in seconds, where the Wii itself scores 1051 seconds.
3D Particle Movement v2.1: AVX2/AVX512
This is the latest version of this benchmark designed to simulate semi-optimized scientific algorithms taken directly from my doctorate thesis. This involves randomly moving particles in a 3D space using a set of algorithms that define random movement. For v2.1, we also have a fully optimized AVX2/AVX512 version, which uses intrinsics to get the best performance out of the software.
Tiger Lake wins here as it has an AVX512 unit.
y-Cruncher 0.78.9506: www.numberworld.org/y-cruncher
If you ask anyone what sort of computer holds the world record for calculating the most digits of pi, I can guarantee that a good portion of those answers might point to some colossus super computer built into a mountain by a super-villain. Fortunately nothing could be further from the truth – the computer with the record is a quad socket Ivy Bridge server with 300 TB of storage. The software that was run to get that was y-cruncher.
This is another AVX-512 test.
Linux OpenSSL Speed: SHA256
One of our readers reached out in early 2020 and stated that he was interested in looking at OpenSSL hashing rates in Linux. Luckily OpenSSL in Linux has a function called ‘speed’ that allows the user to determine how fast the system is for any given hashing algorithm, as well as signing and verifying messages.
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MDD1963 - Friday, December 18, 2020 - link
So, in a nutshell, this is still just a better CPU but still crippled with just over (barely) GT1030-level of integrated graphics...Assimilator87 - Friday, December 18, 2020 - link
To everyone complaining about the benchmark resolutions/settings: Just double the results of the 1080p benchmarks and that's the ballpark 720p performance. I'm sure 1080p max was used in order to make sure there was a complete GPU bottleneck. That's the only way to compare the GPUs in relation to each other. Once you have that scale, you can extrapolate to other resolutions.Ian, what happened to the Subor Z+ review? That would be such an incredibly interesting comparison point.
McFly323 - Friday, December 18, 2020 - link
The best World APU is PS5 AMD APU.But the AMD will never release that for PC buyers because that would murder PC components market.Oxford Guy - Friday, December 18, 2020 - link
Since these are OEM-only I wouldn't expect to see them married to high-performance RAM.Many are looking at this lineup from the point of view of the build-a-gaming-PC-myself enthusiast sector but one can also look at it from the point of view of "How much does slow OEM RAM hobble these APUs?" Since OEMS often tout the performance of products that don't perform as well as they could or should (a thing helped out by companies that sell stealth watered-down versions of their products, sometimes with the same name attached) it's useful to have the information out there about how they will perform with baseline RAM.
However, given that 3200 has been cheap for a long time (I got 16 GB for $90 in 2016 as I recall) it would be good to always have the tests show both the slow RAM and something affordable like 3200 that offers quite a bit more performance.
One problem that a company like AMD faces if making CPUs like this is the possibility of them being used with slow RAM. The way around that is to engineer the CPUs to fail to run with slow RAM.
Oxford Guy - Friday, December 18, 2020 - link
"The way around that is to engineer the CPUs to fail to run with slow RAM."So, not doing that means the company is satisfied with the parts being hobbled by slow RAM, not just the OEM.
vol.2 - Saturday, December 19, 2020 - link
If they make IGPU performance "deliver," it will eat into the sales of DGPUs.Valantar - Sunday, December 20, 2020 - link
It's great to see these reviewed! I bought a 4650G off a German ebay store a couple of months back, and I couldn't be happier with it for my HTPC. Sips power (I've never seen it exceed 110W at the wall), and performs admirably. With my Crucial Sport LT 3200C16 running happily at 3800C16 (1:1:1) (with near zero effort thanks to 1usmus' dram calc) and the iGPU at 2100 it delivers 60-75fps in Rocket League at 1080p Quality preset, which is perfectly enjoyable. I understand AT's choice of running JEDEC max spec DRAM, but for these chips in particular I think DRAM OC testing would be a good idea.artifex - Monday, December 21, 2020 - link
I feel let down by AMD that they won't officially put their better APUs out in the retail chain, when most AM4 boards out there have video connectors and associated hardware ready to support them. It's like a promise that can't be fulfilled.tkSteveFOX - Monday, December 21, 2020 - link
The Vega architecture and lack of DDR4X high speed RAM make AMD APU's just not worth it when you can get a 2600x and pair it with an RX5500 or GTX1650 or even an older 1050Ti and deliver 30-60% more gaming performance.With RDNA integrated, AMD could have blown away any Intel iGPU and lower end Nvidia solutions.
This 4th gen AMD Desktop APUs are simply not worth it.
Brane2 - Wednesday, December 23, 2020 - link
Isn't that a bit late now, that 5xxxx is to come out ?