AMD Ryzen 5 2400G and Ryzen 3 2200G Core Frequency Scaling: An Analysis

Wednesday, June 20th, 2018 - CPUs, Teknologi

AMD Ryzen 5 2400G and Ryzen 3 2200G Core Frequency Scaling: An Analysis

When AMD launched their first generation Ryzen-based APUs with a Zen cores and Vega graphics, both of the new parts entered the market at two very different budget-focused price points. The Ryzen 3 2200G, sitting at $99 for a quad-core CPU with Vega graphics was an amazing feat, and Ryzen 5 2400G coming in at $169 became the new integrated graphics champion. In our run of performance analysis articles, the question being asked today are relatively simple ones: 'how well do the new AMD Ryzen 2000 series APUs scale with core frequency'? We tested our APUs for standard benchmark performance, discrete gaming performance, and integrated graphics performance.


Core Frequency Scaling on The Ryzen 2000 Series

The perception when overclocking a CPU, or any other component for that matter, is that the increase in clock speed will directly correlate into better performance. The theory is pretty simple on paper, but the translation between the increase of clock rate and increase in performance can be a somewhat different story depending on the rest of the system or how the program is computed.

As a result, a 25% increase in clock speed only really correlates to a 25% jump in performance for the most simple programs, as there are many other limiting factors to consider such as bottlenecks on graphics, memory performance, or stalls in the compute pipeline.

In our testing for this article, we aim to go through and evaluate the differences and performance scaling at different frequencies on our APUs.

AMD Ryzen 2000-Series APUs
 Ryzen 5 2400G
with Vega 11
Ryzen 3 2200G
with Vega 8
CPU Cores/Threads4 / 84 / 4
Base CPU Frequency3.6 GHz3.5 GHz
Turbo CPU Frequency3.9 GHz3.7 GHz
TDP @ Base Frequency65 W65 W
Configurable TDP46-65 W46-65 W
L2 Cache512 KB/core512 KB/core
L3 Cache4 MB4 MB
GraphicsVega 11Vega 8
Compute Units11 CUs8 CUs
Streaming Processors704 SPs512 SPs
Base GPU Frequency1250 MHz1100 MHz
DRAM SupportDDR4-2933
Dual Channel
Dual Channel
Bundled CoolerAMD Wraith StealthAMD Wraith Stealth

Our previous articles covering the APU performance include a pure overclock analysis, as well as a detailed guide in delidding the processor for extra performance. We have a future article planned on memory performance.

After delidding the processor, for better thermal performance

For the testing, we took each of our APUs from 3.5 GHz to 4.0 GHz on the core frequency in 100 MHz jumps and performed our testing suite throughout. This correlates to a 14.3% performance jump overall, and matches the frequencies we saw in our overclocking articles. At each point we will compare to see if the performance uplift is even loosely correlated to CPU speed.

Test Bed Setup

As per our testing policy, we take a premium category motherboard suitable for the socket, and equip the system with a suitable amount of memory. With this test setup, we are using the BIOS to set the CPU core frequency using the provided straps on the MSI B350I Pro AC motherboard. The memory is set to the maximum supported frequency of DDR4-2933 with CAS latency timings of 18-18-18 within the BIOS to provide consistency throughout the different frequencies tested.

Test Setup
ProcessorsAMD Ryzen 3 2200GAMD Ryzen 5 2400G
MotherboardMSI B350I Pro AC
CoolingThermaltake Floe Riing RGB 360
Power SupplyThermaltake Toughpower Grand 1200 W Gold PSU
MemoryG.Skill Ripjaws V
DDR4-3600 17-18-18
2×8 GB
1.35 V
Integrated GPUVega 8
1100 MHz
Vega 11
1250 MHz
Discrete GPUASUS GTX 1060 Strix
1620 MHz Base, 1847 MHz Boost
Hard DriveCrucial MX300 1 TB
CaseOpen Test Bed
Operating SystemWindows 10 Pro

We must thank the following companies for kindly providing hardware for our multiple test beds.

Thank you to Crucial for providing us with MX300 SSDs. Crucial stepped up to the plate as our benchmark list grows larger with newer benchmarks and titles, and the 1TB MX300 units are strong performers. Based on Marvell's 88SS1074 controller and using Micron's 384Gbit 32-layer 3D TLC NAND, these are 7mm high, 2.5-inch drives rated for 92K random read IOPS and 530/510 MB/s sequential read and write speeds.

The 1TB models we are using here support TCG Opal 2.0 and IEEE-1667 (eDrive) encryption and have a 360TB rated endurance with a three-year warranty.

Further Reading: AnandTech's Crucial MX300 (750 GB) Review

Recommended Reading

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