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Manli Stellar GeForce RTX 5080 OC specifications and in-depth review

Manli Stellar GeForce RTX 5080 OC

Manufacturer: Manli

The Manli Stellar GeForce RTX 5080 OC is a desktop graphics card based on NVIDIA's Blackwell architecture, manufactured on a 5 nm process with 45,600 million transistors. It runs at a base clock of 2295 MHz and reaches a turbo frequency of 2640 MHz, while its 10,752 shading units and 336 texture mapping units contribute to a texture rate of 887 GTexels/s and a floating-point throughput of 56.77 TFLOPS.

The card is equipped with 16GB of GDDR7 memory on a 256-bit bus, delivering an effective memory speed of 30,000 MHz and a peak bandwidth of 960 GB/s. It supports DirectX 12 Ultimate, OpenGL 4.6, ray tracing, DLSS, and Intel Resizable BAR, and provides four display outputs through one HDMI 2.1b port and three DisplayPort connectors. With a TDP of 360W and dimensions of 360 mm by 147 mm, the card uses air cooling and includes RGB lighting.

Pros
  • Supports up to four simultaneous display outputs through a combination of one HDMI 2.1b port and three DisplayPort connectors
  • ECC memory support adds a degree of data integrity for reliability-sensitive workloads
  • DLSS and ray tracing are both supported, enabling access to those rendering capabilities
  • Intel Resizable BAR is included, allowing the CPU broader access to GPU memory resources
  • RGB lighting is built into the card for those who want visual customization in their build
  • 16GB of GDDR7 VRAM on a 256-bit bus provides a substantial memory pool with 960 GB/s of bandwidth
Cons
  • A 360W TDP places considerable demand on the system power supply and case airflow
  • No water-cooling option is included, leaving thermal management entirely dependent on the air cooler
  • The card measures 360 mm in length, which may not fit in smaller or mid-tower cases without verification
  • No USB-C output is available, limiting direct connectivity to displays or devices that require that interface
  • XeSS (XMX) is not supported, restricting upscaling options to DLSS only
Who is this for?

This card is well-matched for users running demanding rendering workloads, thanks to its 56.77 TFLOPS of floating-point performance and 960 GB/s of memory bandwidth. The combination of ray tracing support, DLSS, and 16GB of GDDR7 VRAM makes it a practical fit for high-resolution gaming and content creation tasks that benefit from large framebuffers. Those working across multiple monitors will also find the four-display output capability useful, while the inclusion of ECC memory support extends its relevance to users with compute or data-integrity requirements.

Who is this NOT for?

At 360 mm in length and with a 360W TDP, this card is not well-suited for compact or small-form-factor builds where physical space and power headroom are limited. Users who rely solely on air cooling and have constrained airflow in their cases may struggle to manage thermals effectively, given that no water-cooling option is provided. Additionally, those who depend on USB-C display connectivity or require XeSS upscaling support will find those options absent, making the card a poor fit for workflows or display setups built around those capabilities.

Performance:

GPU clock speed 2295 MHz
GPU turbo 2640 MHz
pixel rate 295.7 GPixel/s
floating-point performance 56.77 TFLOPS
texture rate 887 GTexels/s
GPU memory speed 1875 MHz
shading units 10752
texture mapping units (TMUs) 336
render output units (ROPs) 112
Has Double Precision Floating Point (DPFP) ✓

The Performance section of this card centers on a base GPU clock of 2295 MHz that boosts up to 2640 MHz under load, supported by 10,752 shading units and 336 texture mapping units delivering a texture rate of 887 GTexels/s and a pixel rate of 295.7 GPixel/s. Floating-point throughput reaches 56.77 TFLOPS, while the GPU memory operates at 1875 MHz. With 112 render output units and full support for Double Precision Floating Point, the card covers a broad range of compute and rendering workloads.

Memory:

effective memory speed 30000 MHz
maximum memory bandwidth 960 GB/s
VRAM 16GB
GDDR version GDDR7
memory bus width 256-bit
Supports ECC memory ✓

This card carries 16GB of GDDR7 VRAM across a 256-bit memory bus, reaching an effective memory speed of 30,000 MHz and a peak bandwidth of 960 GB/s. ECC memory support is included, adding a layer of data integrity for workloads where memory reliability matters.

Features:

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

The card supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, covering a broad range of graphics and compute APIs. Ray tracing and DLSS are both supported, alongside stereoscopic 3D and multi-display technology for up to four simultaneous outputs. Intel Resizable BAR is included, while XeSS (XMX) and LHR are not present on this model. RGB lighting is built in, rounding out the feature set.

Ports:

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

The card's output configuration consists of one HDMI 2.1b port and three DisplayPort outputs, totaling four available display connections. There are no USB-C, DVI, or mini DisplayPort outputs on this model.

General info:

GPU architecture Blackwell
Thermal Design Power (TDP) 360W
PCI Express (PCIe) version 5
semiconductor size 5 nm
number of transistors 45600 million
Has air-water cooling ✕
width 360 mm
height 147 mm

Built on the Blackwell architecture and fabricated at 5 nm, the GPU integrates 45,600 million transistors and connects via PCIe 5. It carries a TDP of 360W and relies on air cooling, with no water-cooling option included. The card measures 360 mm in width and 147 mm in height.

Final Verdict

The Manli Stellar GeForce RTX 5080 OC is a graphics card built for users who need substantial compute headroom and memory capacity in a single slot. Its Blackwell architecture, combined with 960 GB/s of memory bandwidth from 16GB of GDDR7 VRAM, positions it firmly toward high-resolution rendering, multi-display workflows, and compute tasks that demand both throughput and data reliability. The physical footprint and power requirements mean it calls for a well-provisioned system, and the absence of USB-C output or water-cooling narrows its fit for certain setups — but within the right build, it delivers a technically comprehensive feature set that covers ray tracing, DLSS, ECC support, and four-display output without compromise.

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