NVIDIA GeForce RTX 5070 Specifications Reference: Blackwell, 12 GB GDDR7, Displays, and Power

NVIDIA identifies the GeForce RTX 5070 as a Blackwell-generation GPU. Its current official specification lists 6,144 CUDA cores, fifth-generation Tensor Cores, fourth-generation Ray Tracing Cores, a 2.51 GHz boost clock and a 2.33 GHz base clock. These are manufacturer specifications, not Core Tech Tips benchmark measurements.

The specification sheet establishes hardware resources and platform capabilities, but it does not by itself establish gaming performance. A specific add-in-board model can also differ in clocks, cooler dimensions, slot thickness, connector placement and other board-level details.

NVIDIA specifies 12 GB of GDDR7 memory on a 192-bit interface and currently lists 672 GB/s of memory bandwidth. Capacity, memory type, bus width and bandwidth describe different properties; none should be used alone to infer a frame rate or a universal resolution limit.

For real workloads, VRAM demand depends on the game or application, resolution, assets, rendering features and software behavior. The 12 GB figure is therefore useful as a capacity boundary, not as proof that every workload at a particular resolution will fit or perform well.

NVIDIA lists DisplayPort 2.1b with UHBR20 and HDMI 2.1b support for the RTX 5070 reference specification. Display Stream Compression is used for some of the highest advertised resolution and refresh-rate combinations.

NVIDIA lists up to four independent displays at 4K 165 Hz, or two independent displays at 4K 360 Hz or 8K 100 Hz with DSC, while noting that other configurations depend on available bandwidth. Those figures describe output capability, not a claim that the GPU can render demanding games at those resolutions and refresh rates.

NVIDIA specifies 250 W Total Graphics Power for the RTX 5070 and currently gives 650 W required system-power guidance for its stated reference configuration. The system-power figure is guidance rather than a universal PSU calculation because CPU choice, other components, transient behavior, power limits and the exact board design all affect requirements.

For supplementary power, NVIDIA lists either two PCIe 8-pin cables through the supplied adapter or a 300 W-or-greater PCIe Gen 5 cable. Check the exact graphics-card vendor's documentation before installation because partner implementations can differ.

NVIDIA's current RTX 5070 specification lists one ninth-generation NVENC encoder and one sixth-generation NVDEC decoder. These fixed-function media blocks are relevant to video encode/decode workflows and should be considered separately from CUDA-core count or gaming rasterization performance.

A creator workload can therefore care about codec and media-engine support even when its GPU-compute requirements are modest. Conversely, the presence of a newer encoder does not establish the performance of an unrelated 3D workload.

Core count, clocks, VRAM, bus width, media engines, display interfaces and power specifications are useful for checking capabilities and build compatibility. They do not establish a reliable performance delta against another GPU without controlled benchmark evidence.

For an upgrade, combine the GPU-level reference with the exact partner-card specification, case clearance, motherboard slot layout, PSU and cabling, and the display connections you need. Use comparable benchmark measurements for performance decisions rather than deriving a winner from specification-sheet numbers.