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Recently, AMD unveiled the standout Ryzen 7000 series CPUs featuring integrated iGPU with RDNA2 architecture. This allows the integrated GPU on the processor to offer overclocking capabilities and full support for the latest standards. Skatterbencher has showcased the maximum potential that integrated iGPU can bring to users.
In terms of technical specifications, the iGPU RDNA2 boasts up to 12 CUs running at a clock speed of 2400MHz. The AMD Radeon 680M 'RDNA 2' iGPU has brought improved frame rates in current popular games. However, the graphics processing capabilities of the iGPU may be more suitable for office use, light graphics tasks, and simultaneous support for new encoding/decoding technologies.
Specifically, Skatterbencher used the AMD Ryzen 9 7900 processor on the Gigabyte B650E AORUS Tachyon motherboard to test the real-world performance of the RDNA2 architecture on the iGPU. At default clock speeds, the iGPU delivers frame rates of around 12 FPS in Tomb Raider and an average of about 58 FPS in CS:GO at 1080p resolution.
Meanwhile, enabling the EXPO feature brings a performance improvement of up to 12% and reveals a 'memory bandwidth bottleneck.' Although this does not result in significant gaming performance improvements, it demonstrates the greater performance potential of the RDNA2 architecture.
Skatterbencher's experiment showcased the utilization of graphics curve optimizer technique for overclocking iGPUs with RDNA2 architecture to 3.1GHz, a significant boost from the default 900MHz. This resulted in a remarkable 40% increase in clock speed translating to a 42% performance uplift. Most notably, in CS:GO, frame rates surged from 58 FPS to 80 FPS. Similarly, Tomb Raider saw an improvement of 17 FPS, with a potential stable 30 FPS at 720p resolution.
Additionally, overclocking elevated GPU temperature to 52.8°C with power consumption peaking at 60.6W, compared to default clock speeds where temperature hovered around 38.4°C and power draw at 38.5W. Skatterbencher also emphasized the ease of overclocking integrated iGPUs compared to AMD discrete GPUs.
Skatterbencher's experimentation with the graphics curve optimizer method successfully pushed the clock speed of iGPUs with RDNA2 architecture to 3.1GHz from the default 900MHz. This resulted in a notable 40% increase in clock speed, leading to a 42% improvement in performance. The most significant enhancements were observed in CS:GO, where frame rates rose from 58 FPS to 80 FPS. Similarly, Tomb Raider experienced a 17 FPS boost, with the potential for stable 30 FPS at 720p resolution.
