ZOTAC GeForce RTX 4070 Twin Edge OC graphics card ZT-D40700H-10SMP

Built for 1440p and 4K gaming

The ZOTAC GeForce RTX 4070 Twin Edge OC uses the NVIDIA Ada Lovelace architecture with 5888 CUDA cores and 12GB of GDDR6X memory on a 192-bit bus. A boost clock of 2490 MHz and 21 Gbps memory speed feed modern titles at high refresh rates. The card connects through PCI Express 4.0 x16 and drives up to four displays via HDMI 2.1a and three DisplayPort 1.4a outputs.

Sustained load behaviour

Under continuous gaming load the GPU maintains its 2490 MHz boost while the 12GB frame buffer handles 1440p ultra and entry 4K settings without paging. The 200 W thermal design power stays steady rather than spiking, so a 600 W power supply and a single 8-pin connector deliver stable current through long sessions. Driver support for DirectX 12 Ultimate, Vulkan 1.3 and OpenGL 4.6 keeps compute pipelines full across extended workloads.

Thermals, noise and power

IceStorm 2.0 cooling uses two 90 mm fans with FREEZE fan-stop and Active Fan Control to spin only when core temperature demands it. At idle the fans halt completely, eliminating noise; under load they ramp gradually to move heat through the metal backplate. The 2.2-slot ATX form factor at 226 mm length fits most mid-tower cases while keeping exhaust directed out the rear. Power draw centres on the 200 W TDP with the single 8-pin feed.