AMD Radeon RX 6600 vs NVIDIA GeForce GTX 1080 Mobile vs AMD Radeon RX 6600 XT

AMD Radeon RX 6600

The AMD Radeon RX 6600 is a mid-range desktop graphics card that is based on the RDNA 2 architecture and uses the Navi 23 chip. It offers 1,792 shaders and 8 GB GDDR6 VRAM with a 128 bit memory interface (14 Gbps, 224 GB/s max).

The RDNA2 architecture offers new features like SAM (Smart Access Memory) and Infinity Cache. PCIe 4.0, RIS (Radeon Image Sharpener) and Raytracing support are also included in the RX6600.

The gaming performance of the RX 6600 is comparable to a GeForce RTX 2060 Super (Desktop). The previous generation Radeon RX 5600 can be easily bested. Therefore, the RX 6600 is best suited for demanding games in 1080p and high details.

The power consumption is rated at 132 Watt (TGP) by AMD and therefore offers a rather low power consumption compared to the previous generations with similar performance.

NVIDIA GeForce GTX 1080 Mobile

The Nvidia GeForce GTX 1080 for laptops (formerly known as GTX 1080M) is the mobile counterpart of the desktop GeForce GTX 1080. It uses the same GP104 chip and was officially announced at 16. August. The performance should be around +-10% of a non overclocked desktop GTX 1080. The amount of shaders and other technical specifications should be identical.

The mobile GTX1080 is the successor to the GeForce GTX 980 for Laptops and offers a significantly higher performance at the same TDP.

For thin and light laptops Nvidia offer a Max-Q called version of the GTX 1080 with lower TDP and also significantly lower performance. Sadly this variant im sold with the same GTX 1080 name, making it hard to judge the performance.

The performance depends on the used thermal headroom, processor and game. In our benchmarks the mobile GTX 1080 was between 0 to 10 percent slower than the desktop GTX 1080. Therefore, the card also allows gaming in 4k for modern and demanding games of 2017. However, the performance depends on the cooling and TDP settings in each laptop. E.g. the MSI GT73VR (200 W TDP) is much faster than the 1080 in the Razer Blade Pro (<=150 W).

The GP104 chip is manufactured in 16nm FinFET process at TSMC and offers a range of new features. DisplayPort 1.4 (ready), HDMI 2.0b, HDR, Simultaneous Multi-Projection (SMP), improved H.265 video en- and decoders (for PlayReady 3.0) are only some of the improvements. See our detailed Pascal architecture article for more details.

Due to the high TDP, the mobile GTX 1080 is only suited for large laptops with high performance cooling solutions. The power consumption is ranging from 150 to 200 Watt (according to Nvidia, up to 220 W in the Asus G701VIK, G800, GX800). A low power version (Max-Q) is available beginning summer 2017 with a reduced TGP of 90 - 110 Watt (at a reduced performance).

AMD Radeon RX 6600 XT

The AMD Radeon RX 6600 XT is a mid-range desktop graphics card that is based on the RDNA 2 architecture and uses the Navi 23 chip. It offers 2,048 shaders and 8 GB GDDR6 VRAM with a 128 bit memory interface (16 Gbps, 256 GB/s max).

The RDNA2 architecture offers new features like SAM (Smart Access Memory) and Infinity Cache. PCIe 4.0, RIS (Radeon Image Sharpener) and Raytracing support are also included in the RX6600XT.

The gaming performance of the RX 6600 XT is comparable to a GeForce RTX 3060 (Desktop). The previous generation Radeon RX 5600 XT can be easily bested. Therefore, the RX 6600 XT is best suited for demanding games in 1080p and high details.

The power consumption is rated at 160 Watt (TGP) by AMD and therefore similar to a GeForce RTX 3060 (170 Watt).