GALAX GeForce RTX 5070 Ti 1-Click OC Performance, Power Analysis & Noise Output

Part Analysis

The main parts of the graphics card are the backplate, the cooler, the PCB, and the fan assembly. The cooling solution uses seven heatpipes, which pass through the block that comes in contact with the GPU.

Here are photos of the PCB’s front side. It is the same size as the Galax RTX 5080 model.

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rear2

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The PCB’s solder side.

heatsink1

heatsink2

heatsink3

heatsink4

heatsink15

heatsink16

The cooling solution uses seven heatpipes, which pass through the block that comes in contact with the GPU.

The GPU203 follows the Blackwell architecture. Like its predecessor, it is manufactured by TSMC and uses a 5 nm production process. Its die size is 378 mm2, and it has 45.6 billion transistors. It has almost the same die size as the AD103, used in the RTX 4080, and the same number of transistors (45.6 billion).

This image explains EVERYTHING you need to know about this graphics card and its power circuits. My friends at TecLab (thanks, Ronaldo and Burti), experts in GPUs and more, provided it! All credit for this part analysis goes to my friends at TecLab, who also trained me on how to do that properly!

The main difference between the Galax RTX 5080 board and the RTX 5080 model is that the latter has two fewer NVVDD phases (8x in total instead of 10x on the RTX 5080 model).

An 8-phase VRM powers the GPU, highlighted in the green rectangles above. A Monolithic Power Systems MP29816 controller controls these. There are four phases for MSVDD and three phases for FBVDD. For those who don’t know what these two mean, FBVDD ensures the stability and accuracy of data transfers between the GPU and memory, especially at high clock speeds. In contrast, the MSVDD voltage manages the memory chips’ operation.

The GPU power phases use Monolithic MPS MP87993 DrMOS rated at 50A, and the VRAM phases use the same type of DrMOS.

Samsung makes the GDDR7 memory chips. Their model number, K4VAF325ZC-SC28, indicates that they are rated for 28 Gbps. The RTX 5090 uses the same memory chips, while the 5080 has higher-speed rated ones (32 Gbps).

The card’s power socket. Its type is 12V-2×6.

Photo provided by the Galax RTX 5080

There is no information on the fan model numbers, but they most likely use rifle bearings, like the rest of the fans Galax uses in its GPUs.

caps

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caps_rear2

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DRMOS1

DRMOS2

mps2446

mps2446_2

power phases

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Some more photos of parts.