Palit GeForce RTX 4080 Super JetStream OC specifications and in-depth review

Palit GeForce RTX 4080 Super JetStream OC

Manufacturer: Palit

The Palit GeForce RTX 4080 Super JetStream OC is a high-specification graphics card from Palit's JetStream lineup, built on NVIDIA's Ada Lovelace architecture and produced on a 5 nm process integrating 45,900 million transistors. It measures 328.9 mm in length and 130.5 mm in height, and includes RGB lighting as part of its design. With a 320W Thermal Design Power (TDP) and PCIe 4.0 connectivity, the card is intended for use in full-size desktop systems with adequate power delivery.

The card is equipped with 16GB of GDDR6X VRAM across a 256-bit memory bus, running at an effective speed of 23,000 MHz and reaching a maximum bandwidth of 736.3 GB/s. Its 10,240 shading units, 320 texture mapping units, and 112 render output units contribute to a floating-point performance of 52.84 TFLOPS, a texture rate of 825.6 GTexels/s, and a pixel rate of 289 GPixel/s, with a boost clock of 2,580 MHz. The card supports DirectX 12 Ultimate, OpenGL 4.6, OpenCL 3.0, ray tracing, DLSS, stereoscopic 3D, ECC memory, and Intel Resizable BAR, while XeSS (XMX), LHR, and multi-GPU support are absent. Display output is provided through three DisplayPort and one HDMI 2.1a port, supporting up to four monitors simultaneously, with no USB-C, DVI, or mini DisplayPort outputs available.

Pros
  • 16GB of GDDR6X VRAM across a 256-bit bus with a maximum bandwidth of 736.3 GB/s supports demanding graphical and memory-intensive compute workloads
  • A floating-point performance of 52.84 TFLOPS combined with a 2,580 MHz boost clock reflects a high level of computational throughput for its class
  • Ray tracing, DLSS, and DirectX 12 Ultimate support cover the full set of current-generation rendering feature requirements
  • ECC memory support adds error detection and correction capability, making the card suitable for workloads where memory data integrity is a priority
  • Intel Resizable BAR support enables the CPU to access the full GPU frame buffer simultaneously, improving data transfer efficiency
  • Four display outputs — three DisplayPort and one HDMI 2.1a — allow flexible multi-monitor configurations supporting up to four screens
Cons
  • A 320W TDP places significant demands on system power delivery, requiring a well-specified power supply to operate reliably
  • At 328.9 mm in length and 130.5 mm in height, the card has a large physical footprint that may not fit in compact or mid-tower cases without careful planning
  • Air-water cooling is not supported, which rules out liquid cooling integration for users who require or prefer that thermal management option
  • No USB-C output is present, limiting direct compatibility with displays or adapters that rely on that connection type
  • Multi-GPU support is not available, restricting the card to single-GPU configurations only
Who is this for?

The card is well-suited to users who engage in graphically intensive gaming or GPU-accelerated compute workloads that can make full use of 16GB of GDDR6X VRAM, 736.3 GB/s of memory bandwidth, and 52.84 TFLOPS of floating-point performance. Its support for ray tracing, DLSS, DirectX 12 Ultimate, and ECC memory also makes it a practical fit for those working across creative or rendering pipelines where both visual fidelity and memory reliability are relevant. Users who need multi-monitor setups with up to four displays will find the four-port output configuration straightforward to work with, given the combination of three DisplayPort and one HDMI 2.1a output.

Who is this NOT for?

The card's 328.9 mm length and 130.5 mm height make it unsuitable for compact or small-form-factor builds where physical clearance is a hard constraint, as it requires a generously sized case to install without issue. Its 320W TDP rules it out for systems with limited power supply headroom, since the overall power demands on the host system are substantial. Users who rely on USB-C display connectivity will also find this card incompatible without an adapter, and those who prefer custom liquid cooling configurations have no supported path to do so, as air-water cooling is not available on this model.

Performance:

GPU clock speed 2295 MHz
GPU turbo 2580 MHz
pixel rate 289 GPixel/s
floating-point performance 52.84 TFLOPS
texture rate 825.6 GTexels/s
GPU memory speed 1438 MHz
shading units 10240
texture mapping units (TMUs) 320
render output units (ROPs) 112
Has Double Precision Floating Point (DPFP)

The GPU operates at a base clock of 2,295 MHz, reaching a boost clock of 2,580 MHz, and delivers a floating-point performance of 52.84 TFLOPS. Its 10,240 shading units are supported by 320 texture mapping units and 112 render output units, producing a texture rate of 825.6 GTexels/s and a pixel rate of 289 GPixel/s. GPU memory runs at 1,438 MHz, and Double Precision Floating Point (DPFP) is supported, extending the card's applicability to workloads that require double precision compute capability.

Memory:

effective memory speed 23000 MHz
maximum memory bandwidth 736.3 GB/s
VRAM 16GB
GDDR version GDDR6X
memory bus width 256-bit
Supports ECC memory

The card comes with 16GB of GDDR6X VRAM on a 256-bit memory bus, delivering an effective memory speed of 23,000 MHz and a maximum memory bandwidth of 736.3 GB/s. ECC memory support is also present, enabling error detection and correction for workloads where memory data integrity is a requirement.

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
multi-GPU 0
has RGB lighting
supported displays 4

The card supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, alongside ray tracing, DLSS, and stereoscopic 3D, while XeSS (XMX) is not included. Multi-display technology is supported with a maximum of four simultaneous outputs, and Intel Resizable BAR is present to enable more efficient CPU access to GPU memory. Multi-GPU support is not available, LHR is absent, and RGB lighting is integrated into the card's design.

Ports:

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

The card provides three DisplayPort outputs and one HDMI 2.1a port, giving a total of four physical display connections. USB-C, DVI, and mini DisplayPort outputs are not included on this model.

General info:

GPU architecture Ada Lovelace
Thermal Design Power (TDP) 320W
PCI Express (PCIe) version 4
semiconductor size 5 nm
number of transistors 45900 million
Has air-water cooling
width 328.9 mm
height 130.5 mm

Built on the Ada Lovelace architecture and manufactured on a 5 nm process, the card integrates 45,900 million transistors and carries a 320W TDP, reflecting the power demands of its specification level. It interfaces with the motherboard via PCIe 4.0 and measures 328.9 mm in width and 130.5 mm in height, making it a large-footprint card that requires adequate case clearance. Air-water cooling is not supported, so the card relies entirely on its built-in air cooling arrangement for thermal management.

Final Verdict

The Palit GeForce RTX 4080 Super JetStream OC delivers a well-rounded specification profile anchored by 16GB of GDDR6X VRAM with 736.3 GB/s of memory bandwidth, 52.84 TFLOPS of floating-point performance, and comprehensive feature support including ray tracing, DLSS, DirectX 12 Ultimate, and ECC memory. Its four-display output capability and Intel Resizable BAR support add practical utility for multi-monitor and compute-oriented use cases alike. The trade-offs — a 320W TDP, a 328.9 mm footprint, the absence of USB-C outputs, and no liquid cooling support — mean the card is best matched to full-size builds with adequate power and space. For users whose system configuration meets those requirements, the Palit GeForce RTX 4080 Super JetStream OC stands as a capable and comprehensively specified option within the high-end graphics card segment.

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