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Manli Gallardo GeForce RTX 5090 OC specifications and in-depth review

Manli Gallardo GeForce RTX 5090 OC

Manufacturer: Manli

The Manli Gallardo GeForce RTX 5090 OC is a high-end graphics card from Manli, built on NVIDIA's Blackwell architecture using a 5nm semiconductor process. It carries a base GPU clock of 2017 MHz with a boost frequency reaching 2482 MHz, and the card ships with 32GB of GDDR7 VRAM across a wide 512-bit memory bus, resulting in a peak memory bandwidth of 1792 GB/s. RGB lighting is included, and the card measures 359mm in length and 145mm in height.

On the technical side, the Manli Gallardo GeForce RTX 5090 OC houses 21,760 shading units, 680 texture mapping units, and 176 render output units, contributing to a texture rate of 1688 GTexels/s and 108 TFLOPS of floating-point performance. The card supports DirectX 12 Ultimate, OpenGL 4.6, OpenCL 3, ray tracing, and DLSS, alongside Intel Resizable BAR. Display connectivity consists of one HDMI 2.1b port and three DisplayPort outputs, supporting up to four displays simultaneously. The card connects via PCIe 5 and has a rated TDP of 575W.

Pros
  • The 512-bit memory bus paired with 32GB of GDDR7 VRAM delivers a peak bandwidth of 1792 GB/s, which supports demanding rendering and compute workloads without memory bottlenecks
  • ECC memory support adds a layer of data reliability, which is beneficial for users running precision-sensitive workloads alongside graphical tasks
  • With four display outputs — one HDMI 2.1b and three DisplayPort connections — the card can drive up to four monitors simultaneously without additional hardware
  • DLSS and ray tracing support are both present, enabling access to modern rendering techniques in compatible applications
  • Intel Resizable BAR support allows the CPU to access the full GPU frame buffer at once, which can improve overall data transfer efficiency
  • RGB lighting is included, offering visual customization options for builds where aesthetics matter
Cons
  • A 575W TDP places substantial demands on the power supply, requiring a high-capacity unit and potentially increasing system heat output
  • At 359mm in length and 145mm in height, the card has a large physical footprint that may not fit in smaller or mid-tower cases
  • Air-water cooling is not supported, limiting cooling flexibility to the card's built-in solution only
  • The absence of USB-C and DVI outputs restricts compatibility with certain monitors and display adapters that rely on those connectors
Who is this for?

This card is well-suited to users who regularly engage in demanding rendering, 3D visualization, or compute-intensive workloads, given its 108 TFLOPS of floating-point performance, DPFP support, and ECC memory — features that collectively benefit both creative professionals and technical users. The 32GB of GDDR7 VRAM with 1792 GB/s of bandwidth makes it a strong fit for anyone working with large datasets, high-resolution textures, or complex scene geometry. Additionally, support for ray tracing, DLSS, and DirectX 12 Ultimate makes it appropriate for users running graphically advanced applications that take advantage of these modern rendering capabilities across up to four displays simultaneously.

Who is this NOT for?

The card's 575W TDP and 359mm physical length make it a poor match for compact or small-form-factor builds, as well as systems with modest power supplies that cannot reliably sustain such draw. Users working in environments where USB-C or DVI display connectivity is required will find the port selection limiting, since neither output type is available on this card. It is also not a suitable choice for those who need flexible cooling configurations, as air-water cooling is not supported, restricting thermal management to the card's factory cooling solution alone.

Performance:

GPU clock speed 2017 MHz
GPU turbo 2482 MHz
pixel rate 436.8 GPixel/s
floating-point performance 108 TFLOPS
texture rate 1688 GTexels/s
GPU memory speed 1750 MHz
shading units 21760
texture mapping units (TMUs) 680
render output units (ROPs) 176
Has Double Precision Floating Point (DPFP) ✓

The Manli Gallardo GeForce RTX 5090 OC operates at a base GPU clock of 2017 MHz, climbing to 2482 MHz in turbo mode, while its GPU memory runs at 1750 MHz. Underpinning these figures are 21,760 shading units, 680 texture mapping units, and 176 render output units, yielding a texture rate of 1688 GTexels/s and a pixel rate of 436.8 GPixel/s. The card delivers 108 TFLOPS of floating-point performance and supports Double Precision Floating Point (DPFP), making it capable of handling both graphics and compute workloads.

Memory:

effective memory speed 30000 MHz
maximum memory bandwidth 1792 GB/s
VRAM 32GB
GDDR version GDDR7
memory bus width 512-bit
Supports ECC memory ✓

The card is equipped with 32GB of GDDR7 VRAM running across a 512-bit memory bus, reaching an effective memory speed of 30,000 MHz and delivering a maximum memory bandwidth of 1792 GB/s. ECC memory support is also included, which helps detect and correct memory errors during operation.

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 Gallardo GeForce RTX 5090 OC 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 spanning up to four displays simultaneously. The card includes Intel Resizable BAR for improved CPU-to-GPU data throughput, and features RGB lighting. XeSS (XMX) and LHR are not present on this card.

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, providing a total of four display connections. There are no USB-C, DVI, or mini DisplayPort outputs on this card.

General info:

GPU architecture Blackwell
Thermal Design Power (TDP) 575W
PCI Express (PCIe) version 5
semiconductor size 5 nm
number of transistors 92200 million
Has air-water cooling ✕
width 359 mm
height 145 mm

The Manli Gallardo GeForce RTX 5090 OC is based on the Blackwell architecture, manufactured on a 5nm process node and integrating 92,200 million transistors. It connects via PCIe 5 and carries a Thermal Design Power of 575W. The card does not include air-water cooling. Physically, it measures 359mm in width and 145mm in height.

Final Verdict

The Manli Gallardo GeForce RTX 5090 OC is a specification-heavy graphics card built around NVIDIA's Blackwell architecture, and its technical profile reflects that clearly. With 32GB of GDDR7 VRAM across a 512-bit bus delivering 1792 GB/s of bandwidth, alongside 108 TFLOPS of floating-point performance and full support for ray tracing, DLSS, and DirectX 12 Ultimate, it is purpose-built for users who push workloads that demand both raw throughput and modern rendering capabilities. Its 575W power draw and 359mm length mean it demands a thoughtfully configured system, and the absence of USB-C outputs and air-water cooling support will narrow its compatibility in certain setups. For users whose environment accommodates those requirements, the Manli Gallardo GeForce RTX 5090 OC represents a well-specified option for high-end creative, compute, and multi-display use cases.

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