NVIDIA GeForce RTX 4070 Laptop GPU vs AMD Radeon RX 6800M vs AMD Radeon RX 6500M

NVIDIA GeForce RTX 4070 Laptop GPU

The NVIDIA GeForce RTX 4070 Laptop GPU (Codename GN21-X6) is a high-end laptop GPU. It is based on the AD106 chip and use the Ada Lovelace architecture. The RTX 4070 offers 4,608 cores (of the 7,680 in the AD106) and a 128 Bit memory bus. The RTX 4070 mobile uses 8 GB GDDR6 dedicated graphics memory with a clock speed of 16 Gbps (effective). The TGP (Total Graphics Power) can be configured between 35 and 115 Watt (+ 15-25 Watt Dynamic Boost from the CPU) leading to different performance levels (the desktop RTX 4070 Ti uses 285 Watt for comparisons). The boost clock speed ranges from 1230 MHz (at 35 Watt TGP) up to 2175 MHz (115W). Therefore, the performance is also depending a lot on the power setting used for the RTX 4080 mobile in the laptop.

The performance should be below the desktop RTX 4070 Ti and therefore best suited for 2k and maximum details for demanding games of 2022.

Our synthetic benchmarks of an average RTX 4070 mobile show a performance slightly below a mobile RTX 3080 Ti. However, with reduced power limits, the performance is clearly suffering, e.g. only 70% in Time Spy for a version with 60W TDP. In games, a fast RTX 4070 is best suited for QHD gaming, where some very demanding games wont reach the 60 fps limit (and may have to run at 1080p, reduced settings or using DLSS). See below for detailed gaming benchmarks of various cards.

The RTX 4070 offers 144 tensor cores (4th gen) that enable DLSS 3 including frame generation for supported games. Furthermore, 36 raytracing cores (4rd gen) can be used for raytracing effects in supported games.

The AD106 chip is manufactured in 5nm at TSMC (4N process).

AMD Radeon RX 6800M

The AMD Radeon RX 6800M is a mobile high-end graphics card for gaming laptops. It uses the Navi 22 chip based on the new RDNA 2 architecture. It uses all 2,560 shaders (= 40 CUs), 160 TMUs, and 64 ROPs and therefore is similar to the desktop Radeon RX 6700 XT. The 192 Bit memory system connects 12 GB GDDR6 with 2 GHz memory clock. Furthermore, the RX6800M includes 96 MB Infinity Cache. AMD specified 2.3 GHz game clock for 11.8 TFLOPS theoretical performance at a TDP of 145 Watt. This means the GPU is in theory 11% faster than the RX 6700M.

The gaming performance of the RX 6800M (e.g. in the Asus ROG Strix G15) is positioned between a RTX 3070 and 3080. In some games the GPU can even surpass a fast RTX 3080. On the other side, when Raytracing effects are activated, it falls behind the GeForce GPUs.

The Navi 22 chip is manufactured at TSMC in the modern 7nm process.

AMD Radeon RX 6500M

The AMD Radeon RX 6500M is a mobile entry-level graphics card based on the Navi 24 chip (RDNA 2  architecture) manufactured in the modern 6nm process. It features 1024 cores (16 CUs - compute units) and 4 GB of fast GDDR6 graphics memory connected with a 128 Bit memory bus. The chip also includes 16 MB Infinity Cache. The game clock speed is specified at 2191 MHz. AMD specifies the theoretical performance at 9.97 TFLOPS (half precision +60% vs 6300M) and 4.98 TFLOPS (single precision). The 6500M supports Smart Access Memory and SmartShift Technology.

The performance should be similar to a mobile RTX 3050 (according to AMD) and therefore best suited for 1080p gaming with high settings.

The Navi 24 chip is manufactured at TSMC in the modern 6nm process and should offer a good energy efficiency. The RX6500M is specified at a TDP of 50 Watt and therefore best suited for normal multimedia laptops.