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Manli Nebula GeForce RTX 5080 specifications and in-depth review

Manli Nebula GeForce RTX 5080

Manufacturer: Manli

The Manli Nebula GeForce RTX 5080 is a desktop graphics card based on NVIDIA's Blackwell architecture, fabricated on a 5 nm process with 45,600 million transistors. It operates at a base clock of 2295 MHz and reaches a boost clock of 2617 MHz, while its 10,752 shading units contribute to a floating-point throughput of 56.28 TFLOPS. The card measures 312 mm in length and 124 mm in height, drawing up to 360W as defined by its thermal design power rating.

On the memory side, the RTX 5080 carries 16GB of GDDR7 VRAM across 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, and OpenCL 3, along with ray tracing and DLSS. Connectivity includes one HDMI 2.1b port and three DisplayPort outputs, supporting up to four displays simultaneously. Intel Resizable BAR and ECC memory support are also present, and the card connects via a PCIe 5.0 interface.

Pros
  • Supports up to four simultaneous displays through three DisplayPort outputs and one HDMI 2.1b port, offering flexible multi-monitor setups
  • ECC memory support adds a layer of data integrity useful in compute and workstation scenarios
  • Intel Resizable BAR is included, allowing the CPU broader access to GPU memory resources
  • DLSS and ray tracing are both supported, enabling advanced rendering features in compatible applications
  • The 256-bit memory bus paired with GDDR7 delivers a peak bandwidth of 960 GB/s, reflecting a well-provisioned memory subsystem
  • PCIe 5.0 interface ensures the card is compatible with the latest motherboard platforms
Cons
  • A 360W TDP places considerable demands on system power delivery and case airflow
  • No USB-C output is available, limiting compatibility with certain modern displays and capture devices
  • The card does not include an integrated air-water cooling solution, so thermal performance depends entirely on the built-in air cooler
  • At 312 mm in length, installation may be restricted in smaller or mid-tower cases with limited GPU clearance
  • RGB lighting is absent, which may not suit users who prioritize visual customization within their builds
Who is this for?

This card is well-suited to users running demanding rendering and compute workloads, given its 56.28 TFLOPS of floating-point performance, Double Precision Floating Point support, and ECC memory — attributes that align with applications in 3D rendering, simulation, and technical computing. The combination of GDDR7 memory with 960 GB/s of bandwidth and a 256-bit bus also makes it a strong fit for workflows that involve large texture sets or high-resolution assets, where memory throughput directly affects processing speed. Additionally, users who need to drive multiple high-resolution displays simultaneously will find the four-output configuration — three DisplayPort and one HDMI 2.1b — a practical match for multi-monitor productivity or content creation setups.

Who is this NOT for?

Users working within compact or small-form-factor systems may find the 312 mm card length difficult to accommodate, as many smaller cases impose strict GPU length restrictions that this card would exceed. The 360W TDP also makes this card unsuitable for builds with modest power supplies or limited case airflow, since it demands robust power delivery and thermal headroom that not all systems can reliably provide. Furthermore, users whose workflows depend on USB-C display connectivity will find no support for that interface here, making the card a poor match for setups centered around USB-C monitors or certain professional display configurations.

Performance:

GPU clock speed 2295 MHz
GPU turbo 2617 MHz
pixel rate 293.1 GPixel/s
floating-point performance 56.28 TFLOPS
texture rate 879.3 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 the Manli Nebula GeForce RTX 5080 centers on a base GPU clock of 2295 MHz that climbs to 2617 MHz under boost conditions, supported by 10,752 shading units and 336 texture mapping units delivering a texture rate of 879.3 GTexels/s. Pixel output is handled by 112 render output units, producing a pixel rate of 293.1 GPixel/s, while overall compute throughput reaches 56.28 TFLOPS of floating-point performance. The GPU memory runs at 1875 MHz, and the card includes support for Double Precision Floating Point (DPFP), broadening its suitability for compute-oriented workloads alongside graphics tasks.

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 ✓

The Manli Nebula GeForce RTX 5080 is equipped with 16GB of GDDR7 VRAM running across a 256-bit memory bus, achieving an effective memory speed of 30,000 MHz and a peak bandwidth of 960 GB/s. These figures reflect the high-throughput characteristics of the GDDR7 standard, which underpins the card's memory subsystem. ECC memory support is also included, adding a layer of data integrity that can be relevant in compute and professional workloads.

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 Manli Nebula GeForce RTX 5080 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, as is stereoscopic 3D, while XeSS (XMX) is not available on this card. Multi-display technology is present with support for up to four simultaneous displays, and Intel Resizable BAR is included to help the CPU access GPU memory more efficiently. The card does not feature LHR or RGB lighting, and no AMD SAM support is provided beyond the Intel Resizable BAR implementation.

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 Manli Nebula GeForce RTX 5080 provides a total of four video outputs, consisting of three DisplayPort connectors and one HDMI 2.1b port. There are no DVI, mini DisplayPort, or USB-C outputs on this card, keeping the connectivity layout straightforward and focused on the two dominant modern display interfaces.

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 312 mm
height 124 mm

The Manli Nebula GeForce RTX 5080 is built on the Blackwell architecture, manufactured using a 5 nm process that integrates 45,600 million transistors onto the die. It connects via a PCIe 5.0 interface and carries a thermal design power rating of 360W, which reflects the power envelope to consider when planning system cooling and power delivery. The card measures 312 mm in width and 124 mm in height, and it does not include an integrated air-water cooling solution, relying instead on whatever cooling configuration the card's own cooler provides.

Final Verdict

The Manli Nebula GeForce RTX 5080 is a specification-dense graphics card built around NVIDIA's Blackwell architecture, and its technical profile positions it firmly within the upper tier of desktop GPU hardware. Its 960 GB/s memory bandwidth backed by GDDR7, combined with robust compute throughput and support for ray tracing, DLSS, and ECC memory, makes it a credible option for users engaged in both graphics-intensive and compute-oriented workloads. That said, its 360W power requirement and 312 mm length mean it demands a well-equipped system to operate at its best, and the absence of USB-C output is a practical gap for certain display configurations. For users with a compatible, capable build, the Manli Nebula RTX 5080 delivers a well-rounded and technically thorough package that addresses a wide range of demanding use cases.

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