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AMD Ryzen 9 7940HS APU Phoenix Launch – Performance Test AMD Radeon 780M vs Radeon 680M vs Intel Iris Xe Graphics


AMD Ryzen 9 7940HS APU Phoenix Launch - Performance Test AMD Radeon 780M vs Radeon 680M vs Intel Iris Xe GraphicsIn January, AMD presented the sixth generation of APUs codenamed Phoenix. Three processors were announced at CES 2023: AMD Ryzen 9 7940HS, Ryzen 7 7840HS and Ryzen 5 7640HS. The first two models offer an integrated Radeon 780M graphics chip, which is based on the RDNA 3 architecture. We had to wait a long time for specific tests of these processors, but finally we succeeded. Recently, this year’s version of ASUS ROG Zephyrus G14 with AMD Ryzen 9 7940HS came to the PurePC.pl editorial office, thanks to which we were the first in Poland to have a look at the possibilities of the new generation of APUs. Today, however, we will focus only on the integrated RDNA 3 graphics system, which I compared with the previous generation, competing Intel Iris Xe Graphics and an additional, separate NVIDIA graphics system in the form of the GeForce RTX 3050 Laptop GPU.

Author: Damian Marusiak

The sixth generation Phoenix APU uses Zen 4 cores and integrated RDNA 3 graphics chips. Again, it was decided to offer up to 8 cores with 12 threads and a graphics chip with 12 Compute Units, although this time based on a newer architecture. The whole was developed in TSMC N4 lithography, which was supposed to ultimately improve energy efficiency, and thus extend the working time on battery power. The new AMD Ryzen 7040HS processors are also the first in the manufacturer’s offer in which it was decided to build dedicated Ryzen AI units for optimization in artificial intelligence calculations.

AMD Radeon 780M is the latest and most powerful (according to the manufacturer’s declaration) integrated graphics system. We check its capabilities in competition, e.g. with Radeon 680M and Intel Iris Xe Graphics.

AMD Ryzen 9 7940HS APU Phoenix Launch - Performance Test AMD Radeon 780M vs Radeon 680M vs Intel Iris Xe Graphics [nc1]

The new RDNA 3 architecture and the new TSMC N4 technological process allowed for a further increase in the timing of the graphics core. In the case of the tested AMD Ryzen 9 7940HS APU and the Radeon 780M graphics chip, the maximum graphics clock is 2800 MHz (initially the specification was 3000 MHz, but AMD corrected the parameters some time after the announcement of the Phoenix generation). The Phoenix APU series also supports DDR5 5600 MHz and LPDDR5X 7500 MHz RAM, but for reasons unknown to us, ASUS decided to choose DDR5 4800 MHz modules (RAM is partially soldered, so replacing one SO-DIMM module with a faster).

AMD Ryzen 9 7940HS AMD Ryzen 7 7840HS AMD Ryzen 5 7640HS
Family APU Phoenix APU Phoenix APU Phoenix
Architecture Zen 4 + RDNA 3 Zen 4 + RDNA 3 Zen 4 + RDNA 3
Lithography TSMC N4 TSMC N4 TSMC N4
Surface 178mm² 178mm² 178mm²
Number of transistors 25 billion 25 billion 25 billion
Cores/threads 8C/16T 8C/16T 6C/12T
base clock 4.0GHz 3.8GHz 4.3GHz
Turbo clock 5.4GHz 5.1GHz 5.0GHz
RAM controller DDR5 5600MHz
LPDDR5X 7500MHz
DDR5 5600MHz
LPDDR5X 7500MHz
DDR5 5600MHz
LPDDR5X 7500MHz
RAM supported Up to 256GB Up to 256GB Up to 256GB
Layout AMD Radeon 780M AMD Radeon 780M AMD Radeon 740M
iGPU configuration 12 CU RDNA 3 12 CU RDNA 3 4 CU RDNA 3
iGPU timing Up to 2800MHz Up to 2700MHz Up to 2600MHz
L3 + L2 cache 24 MB 24 MB 22 MB
Ryzen AI (XDNA) Yes Yes Yes
TDP 35-54W 35-54W 35-54W

Today we will focus solely on the performance of the AMD Radeon 780M integrated graphics chip, leaving the issue of the Ryzen 9 7940HS processor itself for a separate article (this one will appear over the weekend). This time the list of games has been expanded, also introducing newer titles such as Atomic Heart, Resident Evil 4, Control and Assassin’s Creed Valhalla. The choice of graphics settings is individual – in all games we have low details, but in some games there will also be a Medium and High preset. In addition, in Cyberpunk 2077, Resident Evil 4 and Marvel’s Spider-Man Remastered, I used the AMD FSR 2 technique to check the resolution scaling performance. Finally, there is also a performance scaling test (GTA 5 and DOOM Eternal) and temperature measurement under load.



Mr.Mario
Mr.Mario
I am a tech enthusiast, cinema lover, and news follower. and i loved to be stay updated with the latest tech trends and developments. With a passion for cyber security, I continuously seeks new knowledge and enjoys learning new things.

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