Asus ROG Astral LC GeForce RTX 5090 OC Edition
Zotac Gaming GeForce RTX 5090 ArcticStorm AIO

Asus ROG Astral LC GeForce RTX 5090 OC Edition Zotac Gaming GeForce RTX 5090 ArcticStorm AIO

Overview

This comparison puts two flagship liquid-cooled Blackwell titans head to head: the Asus ROG Astral LC GeForce RTX 5090 OC Edition and the Zotac Gaming GeForce RTX 5090 ArcticStorm AIO. Both cards share an identical core architecture and memory configuration, so the real battlegrounds are GPU boost clocks and raw throughput, physical dimensions, and display output options. Read on to see which RTX 5090 variant edges ahead for your setup.

Common Features

  • Both products share a base GPU clock speed of 2017 MHz.
  • Both products have a GPU memory speed of 1750 MHz.
  • Both products feature 21760 shading units, 680 texture mapping units, and 176 render output units.
  • Double Precision Floating Point support is available on both products.
  • Both products have an effective memory speed of 28000 MHz and a maximum memory bandwidth of 1790 GB/s.
  • Both products feature 32 GB of GDDR7 VRAM on a 512-bit memory bus.
  • ECC memory support is available on both products.
  • Both products support DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3.
  • Multi-display technology, ray tracing, 3D, and DLSS support are all available on both products.
  • XeSS (XMX) support is not available on either product.
  • Both products include an HDMI 2.1b output and 3 DisplayPort outputs, with no USB-C, DVI, or mini DisplayPort outputs.
  • Both products are built on the Blackwell GPU architecture using a 5 nm semiconductor process.
  • Both products have a Thermal Design Power of 575 W and connect via PCIe 5.
  • Both products contain 92200 million transistors.
  • Both products feature air-water cooling.

Main Differences

  • GPU turbo clock speed is 2580 MHz on Asus ROG Astral LC GeForce RTX 5090 OC Edition and 2437 MHz on Zotac Gaming GeForce RTX 5090 ArcticStorm AIO.
  • Pixel rate is 454.1 GPixel/s on Asus ROG Astral LC GeForce RTX 5090 OC Edition and 428.9 GPixel/s on Zotac Gaming GeForce RTX 5090 ArcticStorm AIO.
  • Floating-point performance is 112.3 TFLOPS on Asus ROG Astral LC GeForce RTX 5090 OC Edition and 106.1 TFLOPS on Zotac Gaming GeForce RTX 5090 ArcticStorm AIO.
  • Texture rate is 1754 GTexels/s on Asus ROG Astral LC GeForce RTX 5090 OC Edition and 1657.2 GTexels/s on Zotac Gaming GeForce RTX 5090 ArcticStorm AIO.
  • HDMI ports number 2 on Asus ROG Astral LC GeForce RTX 5090 OC Edition and 1 on Zotac Gaming GeForce RTX 5090 ArcticStorm AIO.
  • Width is 288.5 mm on Asus ROG Astral LC GeForce RTX 5090 OC Edition and 251.6 mm on Zotac Gaming GeForce RTX 5090 ArcticStorm AIO.
  • Height is 153.7 mm on Asus ROG Astral LC GeForce RTX 5090 OC Edition and 160.1 mm on Zotac Gaming GeForce RTX 5090 ArcticStorm AIO.
Specs Comparison
Asus ROG Astral LC GeForce RTX 5090 OC Edition

Asus ROG Astral LC GeForce RTX 5090 OC Edition

Zotac Gaming GeForce RTX 5090 ArcticStorm AIO

Zotac Gaming GeForce RTX 5090 ArcticStorm AIO

Performance:
GPU clock speed 2017 MHz 2017 MHz
GPU turbo 2580 MHz 2437 MHz
pixel rate 454.1 GPixel/s 428.9 GPixel/s
floating-point performance 112.3 TFLOPS 106.1 TFLOPS
texture rate 1754 GTexels/s 1657.2 GTexels/s
GPU memory speed 1750 MHz 1750 MHz
shading units 21760 21760
texture mapping units (TMUs) 680 680
render output units (ROPs) 176 176
Has Double Precision Floating Point (DPFP)

At their core, both cards share the same RTX 5090 silicon foundation: identical base clocks of 2017 MHz, the same 21,760 shading units, 680 TMUs, 176 ROPs, and matching memory speeds of 1750 MHz. This means out-of-the-box architectural parity — any performance delta between them comes down purely to how aggressively each manufacturer has tuned the boost behavior.

That's where the Asus ROG Astral LC pulls meaningfully ahead. Its GPU turbo of 2580 MHz outpaces the Zotac ArcticStorm AIO's 2437 MHz — a 143 MHz gap that cascades directly into every derived metric. The ROG Astral delivers 112.3 TFLOPS of floating-point throughput versus 106.1 TFLOPS on the Zotac, a roughly 5.8% advantage. Similarly, its pixel rate of 454.1 GPixel/s and texture rate of 1754 GTexels/s both exceed the Zotac's figures by a comparable margin. In practice, this translates to a measurable edge in compute-heavy workloads — AI inference, ray tracing at 4K, and GPU-accelerated rendering — where sustained boost clocks matter most.

The Asus ROG Astral LC has a clear performance advantage in this group, driven entirely by its higher factory boost clock. Both cards support Double Precision Floating Point, so neither has an architectural edge there. For users who want the fastest out-of-the-box RTX 5090 experience without manual overclocking, the ROG Astral LC is the stronger pick based solely on these specs.

Memory:
effective memory speed 28000 MHz 28000 MHz
maximum memory bandwidth 1790 GB/s 1790 GB/s
VRAM 32GB 32GB
GDDR version GDDR7 GDDR7
memory bus width 512-bit 512-bit
Supports ECC memory

The Asus ROG Astral LC GeForce RTX 5090 OC Edition and the Zotac Gaming GeForce RTX 5090 ArcticStorm AIO have identical specifications in the memory group. Both products feature an effective memory speed of 28000 MHz, a maximum memory bandwidth of 1790 GB/s, and 32GB of VRAM. They also share the same GDDR7 memory version and a 512-bit memory bus width.

Additionally, both models support ECC memory, ensuring error correction for more reliable operation in demanding tasks.

Since all these memory specifications are the same between the two models, there is no distinction in this category.

Features:
DirectX version DirectX 12 Ultimate DirectX 12 Ultimate
OpenGL version 4.6 4.6
OpenCL version 3 3
Supports multi-display technology
supports ray tracing
Supports 3D
supports DLSS
has XeSS (XMX)
AMD SAM / Intel Resizable BAR Intel Resizable BAR Intel Resizable BAR
has LHR
has RGB lighting
supported displays 4 4

The Asus ROG Astral LC GeForce RTX 5090 OC Edition and the Zotac Gaming GeForce RTX 5090 ArcticStorm AIO are identical in their feature sets. Both models support DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, and are equipped with multi-display technology. They also both support ray tracing, 3D, and DLSS, as well as Intel Resizable BAR, but do not feature XeSS (XMX).

Both products lack LHR (Lite Hash Rate) technology, feature RGB lighting, and support up to 4 displays. These specifications are consistent across both the Asus and Zotac models.

Since the features are identical between the two cards, there is no difference to note in this group.

Ports:
has an HDMI output
HDMI ports 2 1
HDMI version HDMI 2.1b HDMI 2.1b
DisplayPort outputs 3 3
USB-C ports 0 0
DVI outputs 0 0
mini DisplayPort outputs 0 0

The Asus ROG Astral LC GeForce RTX 5090 OC Edition and the Zotac Gaming GeForce RTX 5090 ArcticStorm AIO share some similarities in their port configurations but differ in the number of HDMI ports. The Asus model includes 2 HDMI ports, while the Zotac model has only 1 HDMI port. Both products support HDMI 2.1b.

Both cards feature 3 DisplayPort outputs and have no USB-C, DVI, or mini DisplayPort outputs. Therefore, the key difference between the two is the number of HDMI ports, with the Asus card offering one more compared to the Zotac card.

Aside from the HDMI port count, the rest of the port specifications are identical between the two models.

General info:
GPU architecture Blackwell Blackwell
release date January 2025 July 2025
Thermal Design Power (TDP) 575W 575W
PCI Express (PCIe) version 5 5
semiconductor size 5 nm 5 nm
number of transistors 92200 million 92200 million
Has air-water cooling
width 288.5 mm 251.6 mm
height 153.7 mm 160.1 mm

The Asus ROG Astral LC GeForce RTX 5090 OC Edition and the Zotac Gaming GeForce RTX 5090 ArcticStorm AIO are virtually identical in terms of general specifications. Both use the Blackwell GPU architecture, have a Thermal Design Power (TDP) of 575W, and feature the PCI Express 5.0 version. The semiconductor size and number of transistors are also the same, with both cards using a 5 nm process and having 92200 million transistors.

Both products also feature air-water cooling, ensuring efficient heat dissipation. The main difference between the two is their physical dimensions: the Asus model has a width of 288.5 mm and a height of 153.7 mm, while the Zotac model is slightly more compact, with a width of 251.6 mm and a height of 160.1 mm.

Aside from these minor dimensional differences, all other specifications in this group are identical between the two models.

Comparison Summary & Verdict

At their core, these two cards are remarkably alike: the same 575 W TDP, 32 GB of GDDR7 memory on a 512-bit bus, 21760 shading units, full support for DirectX 12 Ultimate, ray tracing, and DLSS, and air-water cooling on a 5 nm Blackwell die. The Asus ROG Astral LC GeForce RTX 5090 OC Edition pulls ahead in every performance metric, delivering a higher 2580 MHz boost clock, 112.3 TFLOPS of floating-point performance, and a second HDMI port for users who need to drive multiple displays simultaneously. The Zotac Gaming GeForce RTX 5090 ArcticStorm AIO counters with a more compact 251.6 mm width, making it the better fit for tighter chassis, while still offering a very capable 2437 MHz boost clock and 106.1 TFLOPS. Choose based on whether peak overclocked performance or case compatibility matters more to you.

Asus ROG Astral LC GeForce RTX 5090 OC Edition
Buy Asus ROG Astral LC GeForce RTX 5090 OC Edition if...

Buy the Asus ROG Astral LC GeForce RTX 5090 OC Edition if you want the highest possible boost clock at 2580 MHz, greater floating-point performance, and dual HDMI outputs for multi-display setups.

Zotac Gaming GeForce RTX 5090 ArcticStorm AIO
Buy Zotac Gaming GeForce RTX 5090 ArcticStorm AIO if...

Buy the Zotac Gaming GeForce RTX 5090 ArcticStorm AIO if you need a more compact card width of 251.6 mm to fit a tighter case, without sacrificing the core RTX 5090 specification set.