New details have emerged regarding the upcoming NVIDIA GeForce RTX 5090, with rumors suggesting a 16+6+7 power stage design, a 14-layer PCB, and 32GB of GDDR7 memory.
Power Design and TGP
According to Benchlife, the RTX 5090 will adopt a 16+6+7 power stage design. For comparison, the RTX 4090 has a 20+3 phase design, and the RTX 3090 Ti has an 18+3 phase design. The card is expected to have a 600W Total Graphics Power (TGP). It's worth noting that TGP refers to the total power supplied to the graphics subsystem, while TDP (Thermal Design Power) is the maximum power it's allowed to draw, with leaks sometimes mixing these terms. The RTX 5090 will use a single 12V-2x6 power connector.
Other Specifications
Benchlife also mentions the following:
- Memory: 32GB GDDR7
- PCB: 14-layer
- Interface: PCI Express 5.0 x16
The 14-layer PCB is expected on the reference board and potentially on the Founders Edition boards. The exposed PCB confirms that the RTX 50 series cards use the PCIe 5.0 specification.
GPU Size
The GB202 GPU, powering the RTX 5090, will measure 744 mm², making it one of the largest GPUs in the RTX family. Here’s a comparison of flagship GPU sizes:
| GPU | Size (mm²) |
|---|---|
| GB202 (Blackwell) | 744 |
| AD102 (Ada) | 608 |
| GA102 (Ampere) | 628 |
| TU102 (Turing) | 754 |
| GV100 (Volta) | 815 |
| GM200 (Maxwell) | 601 |
| GK110 (Kepler) | 551 |
Upcoming RTX 50 Series
The RTX 5090, along with the RTX 5080, 5070 Ti, and 5070, is expected to be revealed at CES 2025. NVIDIA is also reportedly working on an RTX 5090D specifically for the Chinese market.
Here are the rumored specifications for the RTX 50 series (Source: VideoCardz.com)
| RTX 5090 | RTX 5080 | RTX 5070 Ti | RTX 5070 | |
|---|---|---|---|---|
| Board & SKU | PG144/145 SKU 30 | PG144/147 SKU 45 | PG147 SKU 60 | PG146/147 SKU 70 |
| GPU | GB202-300 | GB203-400 | GB203-300 | GB205 -300 |
| Memory | TBD | TBD | TBD | TBD |
| Power Connectors | 1x 16-pin | 1x 16-pin | 1x 16-pin | 1x 16-pin |
| Display Connectors | 3x DP 2.1a, 1x HDMI 2.1 | 3x DP 2.1a, 1x HDMI 2.1 | 3x DP 2.1a, 1x HDMI 2.1 | 3x DP 2.1a, 1x HDMI 2.1 |
| PCIe Interface | PCIe 5.0×16 | PCIe 5.0×16 | PCIe 5.0×16 | PCIe 5.0×16 |
