AMD Radeon 780M vs Intel Arc A770M

AMD Radeon 780M

The AMD Radeon 780M is an integrated GPU in the Ryzen 7040 series for laptops (Phoenix, e.g. Ryzen 9 7940HS). The iGPU is based on the new RDNA3 architecture and has 12 CUs (= 768 shaders) clocked at up to 3 GHz (depending on the CPU model). As the predecessor Radeon 680M, the 780M supports hardware raytracing, although the performance is too slow to use it in current games.

Thanks to the new architecture and higher clock speeds, the Radeon 780M should be clearly faster then the old Radeon 680M. This means most demanding games should be playable in minimum graphics settings (like Cyberpunk 2077) and less demanding games like Fifa 23 can be played in higher settings and resolutions (1080p). In early 2023, the Radeon 780M is the fastest iGPU on the market.

Thanks to the modern 4nm process and clever power-saving features, the power consumption is comparatively low (according to AMD). The whole chip of the first two models can be configured between 15 - 54 Watt TDP.

Intel Arc A770M

The Intel Arc A770M (Device ID 5690) is a dedicated mid-range graphics card from Intel for notebooks. It is based on the ACM-G10 chip and offers all 32 Xe cores (512 ALUs), 32 ray tracing units, 6 MB L1 cache and 16 MB L2 cache. The clock rates can range from 300 MHz to 1650 MHz (gaming) to 2050 MHz (turbo). The memory interface is 256 bits wide and supports 16 GB GDDR6 graphics memory with 16 Gbps. The TGP is between 120 and 150 watts depending on the model.

The performance of the A770M is on average of all games we tested approx. 4% ahead of a mobile RTX 3060 laptop GPU. However, there are significant deviations depending on the game. In Kingdom Come Deliverance 2, for example, the A770M can reach the level of an RTX 3070 laptop GPU and demonstrate its theoretical performance.

The ACM-G10 chip is manufactured at TSMC in 6 nm (N6 process), uses a BGA2660 interface (resolved), offers 21.7 billion transistors and is 406 mm² in size. It integrates two media engines for VP9, AVC, HEVC, AV1 8k60 12-bit HDR decoding and 8k 10-bit HDR encoding. The integrated 4 display pipes support 4x 4k120 HDR, HDMI 2.0B, DP 2.0 10G and Adaptive Sync.

Dynamic Power Share can be used with a 12th generation CPU (Alder Lake) via Deep Link.