ZOTAC GeForce RTX 3090 AMP Extreme Holo Review 12

ZOTAC GeForce RTX 3090 AMP Extreme Holo Review

Circuit Board Analysis »

Packaging

Package Front
Package Back


The Card

Graphics Card Front
Graphics Card Back
Graphics Card Front Angled

At first glance, the card follows Zotac's GeForce 30 AMP Holo design theme almost exactly. The colors on the card are black with various shades of gray. Running along the top edge we find a Spectra RGB lighting element, which creates amazing RGB effects. On the back, you'll find a high-quality metal backplate that curves into the sides.

Graphics Card Dimensions

Dimensions of the card are 35.5 x 15 cm, and it weighs 1879 g. This is a very long card; please be aware of the dimensions, and check if it will fit your case.


See what I mean? The AMP Extreme Holo (right) is huge, noticeably bigger than even the RTX 3090 FE (2nd from right). The small cards on the left? Those are the RTX 3080 Founders Edition, Radeon RX 6800 XT and GeForce RTX 2080 Ti—not so small at all.

Graphics Card Height
Graphics Card Back Angled

Installation requires three slots in your system.

Monitor Outputs, Display Connectors

Display connectivity options include three standard DisplayPort 1.4a and one HDMI 2.1. The DisplayPort 1.4a outputs support Display Stream Compression (DSC) 1.2a, which lets you connect 4K displays at 120 Hz and 8K displays at 60 Hz. Ampere can drive two 8K displays at 60 Hz with just one cable per display.

Ampere is the first GPU to support HDMI 2.1, which increases bandwidth to 48 Gbps to support higher resolutions, like 4K144 and 8K30, with a single cable. With DSC, this goes up to 4K240 and 8K120. NVIDIA's new NVENC/NVDEC video engine is optimized to handle video tasks with minimal CPU load. The highlight here is added support for AV1 decode. Just like on Turing, you may also decode MPEG-2, VC1, VP8, VP9, H.264, and H.265 natively, at up to 8K@12-bit.

The encoder is identical to Turing. It supports H.264, H.265, and lossless at up to 8K@10-bit.


Zotac has equipped their card with a dual-BIOS feature; the two BIOS chips are clearly recognizable on the board. Unlike all other vendors, Zotac doesn't provide a physical BIOS switch. Rather, you have to install the Zotac Firestorm software to toggle between the default Performance BIOS and a secondary "Quiet" BIOS.

Graphics Card Power Plugs

Unlike the NVIDIA Founders Edition card that uses a 12-pin power input, Zotac sticks to the industry standard 8-pin PCIe power inputs, but there are three of these. Combined with PCIe slot power, this configuration is rated for 525 W. When unpacking the card, you're greeted by a sticker on the power plugs that makes it crystal clear that you're supposed to use three separate 8-pin power cables.


Zotac has been including this "super cap" for a while on some of their high-end graphics cards. It's a capacitor with extra-large capacity that can store energy and release it quickly, which is supposed to help smoothen out GPU voltage. We tested it a few years ago, and it made no noticeable difference in anything (including overclocking) even though the smoother voltage can be measured with the proper equipment.

If this really makes any difference other than looking super shiny, other graphics card vendors would have certainly picked up on the technology.


On the PCB, you find measurement points for all voltages on the graphics card—very nice! Near the top edge of the photo is a silkscreen for a "SW3" switch—is this where the BIOS switch was supposed to go?

Multi-GPU Area

The GeForce RTX 3090 supports SLI and features a newer-generation NVLink bridge interface, which means you can't use your NVLink bridge from your Turing cards. Be warned that with Ampere, NVIDIA isn't supporting SLI as in implicit multi-GPU (SLI as you know it), but explicit multi-GPU that's developed and supported by game/application developers. With multi-GPU game support being pretty much non-existent, this basically means SLI is dead. Perhaps creative and 3D modeling applications that support explicit multi-GPU can benefit from SLI.

Teardown

Graphics Card Cooler Front
Graphics Card Cooler Back

Zotac's thermal solution uses eight heatpipes. The main heatsink not only cools the GPU, but also provides cooling for memory chips and VRM circuitry. The thermal pads on the VRM and memory are 2.5 mm thick.


The backplate is made out of metal and protects the card against damage during installation and handling. The thermal pads for the memory chips on the back are 3.5 mm thick.


Here you can see that a lot of space is wasted near the end of the card, for a plastic cooler shroud that really doesn't add anything except to make the card longer, which complicates installation in some cases.
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Aug 14th, 2024 08:17 EDT change timezone

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