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Gainward GeForce RTX 5070 Phoenix-S specifications and in-depth review

Gainward GeForce RTX 5070 Phoenix-S

Manufacturer: Gainward

The Gainward GeForce RTX 5070 Phoenix-S is a desktop graphics card built on NVIDIA's Blackwell architecture, manufactured using a 5nm process and housing 31.1 billion transistors. It operates at a base clock of 2325 MHz with a boost clock reaching 2512 MHz, while supporting modern features such as ray tracing, DLSS, and RGB lighting. The card accommodates up to four displays simultaneously and carries Intel Resizable BAR support alongside DirectX 12 Ultimate compatibility.

On the memory side, the Phoenix-S is equipped with 12GB of GDDR7 VRAM running across a 192-bit bus at an effective speed of 28000 MHz, delivering a maximum bandwidth of 672 GB/s. Its 6144 shading units are complemented by 192 texture mapping units and 80 render output units, contributing to a texture rate of 482.3 GTexels/s and a pixel rate of 201 GPixel/s. The card draws power through a 250W TDP and connects via PCIe 5.0, with display outputs consisting of three DisplayPort 1.4 connectors and one HDMI 2.1b port.

Pros
  • Supports ray tracing and DLSS, enabling advanced rendering techniques in compatible applications
  • ECC memory support adds data integrity protection useful for compute-oriented tasks
  • GDDR7 VRAM with 672 GB/s bandwidth enables fast data throughput for demanding workloads
  • Four simultaneous display outputs accommodate multi-monitor setups without additional hardware
  • Intel Resizable BAR support allows the CPU to access the full GPU frame buffer, potentially improving data transfer efficiency
  • PCIe 5.0 interface ensures compatibility with the latest motherboard platforms
Cons
  • 12GB of VRAM may feel limiting for workloads that demand larger frame buffers at high resolutions
  • A 250W TDP places meaningful demands on the system power supply and case airflow
  • No water cooling support, so thermal management relies entirely on the air cooler
  • No USB-C display output, which restricts compatibility with certain modern monitors and portable displays
  • The 331.9 mm card length may present fitment challenges in smaller or mid-tower cases
Who is this for?

This card is well-suited to users running ray tracing and DLSS-enabled titles at high resolutions, where its 30.87 TFLOPS of floating-point performance and 672 GB/s memory bandwidth provide meaningful headroom. It also fits professionals working on GPU-accelerated compute tasks, thanks to Double Precision Floating Point support and ECC memory, which together make it a practical choice for workloads that require data accuracy. The four simultaneous display outputs further make it a reasonable fit for multi-monitor productivity setups where screen real estate is a priority.

Who is this NOT for?

Users working with large-scale AI, 3D rendering, or memory-intensive professional workloads may find the 12GB VRAM ceiling restrictive, as such tasks often demand significantly larger frame buffers to operate without bottlenecks. The card is equally unsuitable for compact or small-form-factor builds, given its 331.9 mm length and 250W TDP, which require a spacious case and a well-ventilated environment with a capable power supply. Those seeking a card with USB-C display connectivity or water cooling compatibility will also find this model lacking, as neither feature is present.

Performance:

GPU clock speed 2325 MHz
GPU turbo 2512 MHz
pixel rate 201 GPixel/s
floating-point performance 30.87 TFLOPS
texture rate 482.3 GTexels/s
GPU memory speed 1750 MHz
shading units 6144
texture mapping units (TMUs) 192
render output units (ROPs) 80
Has Double Precision Floating Point (DPFP) ✓

The Gainward GeForce RTX 5070 Phoenix-S runs at a base GPU clock of 2325 MHz, climbing to a boost clock of 2512 MHz under load, while its GPU memory operates at 1750 MHz. Floating-point performance is rated at 30.87 TFLOPS, supported by 6144 shading units, 192 texture mapping units, and 80 render output units, yielding a texture rate of 482.3 GTexels/s and a pixel rate of 201 GPixel/s. The card also includes Double Precision Floating Point (DPFP) support, broadening its suitability for compute-oriented workloads.

Memory:

effective memory speed 28000 MHz
maximum memory bandwidth 672 GB/s
VRAM 12GB
GDDR version GDDR7
memory bus width 192-bit
Supports ECC memory ✓

The card is equipped with 12GB of GDDR7 VRAM running across a 192-bit memory bus at an effective speed of 28000 MHz, delivering a maximum memory bandwidth of 672 GB/s. ECC memory support is included, adding a layer of data integrity protection for error-sensitive 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 Gainward GeForce RTX 5070 Phoenix-S supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, covering a broad range of graphics and compute APIs. It includes ray tracing, DLSS, and stereoscopic 3D support, while Intel Resizable BAR is also present to help improve data transfer between the CPU and GPU. The card can drive up to four displays simultaneously and features RGB lighting, though it does not support XeSS (XMX) or include LHR limitations.

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 three DisplayPort outputs and one HDMI 2.1b port, providing a total of four display connections. There are no DVI, mini DisplayPort, or USB-C outputs present on this model.

General info:

GPU architecture Blackwell
Thermal Design Power (TDP) 250W
PCI Express (PCIe) version 5
semiconductor size 5 nm
number of transistors 31100 million
Has air-water cooling ✕
width 331.9 mm
height 127.1 mm

The Gainward GeForce RTX 5070 Phoenix-S is built on the Blackwell architecture, fabricated on a 5nm process node with 31,100 million transistors, and connects to the motherboard via PCIe 5.0. It carries a Thermal Design Power of 250W and relies solely on air cooling, as water cooling is not supported. The card measures 331.9 mm in width and 127.1 mm in height.

Final Verdict

The Gainward GeForce RTX 5070 Phoenix-S is a well-specified graphics card built on the Blackwell architecture, bringing together a capable set of features for both gaming and compute use cases. Its GDDR7 memory configuration with 672 GB/s of bandwidth, combined with ray tracing, DLSS, and ECC support, makes it a versatile option for users who need reliable performance across rendering and accelerated workloads. That said, the 12GB VRAM ceiling and 250W power draw mean it is best suited to systems with adequate thermal headroom and users whose workloads do not push beyond what that memory capacity allows. Overall, the RTX 5070 Phoenix-S represents a focused offering that delivers modern feature support and strong throughput within clearly defined hardware boundaries.

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