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Galax GeForce RTX 5070 Magic Blade OC specifications and in-depth review

Galax GeForce RTX 5070 Magic Blade OC

Manufacturer: Galax

The Galax GeForce RTX 5070 Magic Blade OC is a graphics card from Galax based on Nvidia's Blackwell architecture, manufactured on a 5nm process and packed with 6144 shading units. It ships with a 2557 MHz GPU turbo clock, giving it a floating-point throughput of 31.42 TFLOPS, and includes RGB lighting as part of its design. With a TDP of 250W and dimensions of 316.5mm × 140.1mm, it sits firmly in the mid-to-high range of the current GPU lineup.

On the memory side, the card carries 12GB of GDDR7 VRAM running across a 192-bit bus at an effective speed of 28000 MHz, yielding a maximum bandwidth of 672 GB/s. It supports DirectX 12 Ultimate, OpenGL 4.6, OpenCL 3, ray tracing, and DLSS, and connects via PCIe 5.0. Display output options include one HDMI 2.1b port and three DisplayPort outputs, supporting up to four monitors simultaneously, with Intel Resizable BAR also supported.

Pros
  • Supports ray tracing and DLSS, enabling more advanced rendering techniques in compatible applications
  • 12GB of GDDR7 VRAM running at 28000 MHz effective speed provides substantial memory throughput of 672 GB/s
  • Three DisplayPort outputs plus one HDMI 2.1b port allow simultaneous connection of up to four displays
  • ECC memory support adds a layer of data integrity protection during operation
  • RGB lighting is included for users who want visual customization on their build
  • PCIe 5.0 interface ensures the card is compatible with the latest motherboard platforms
Cons
  • The 192-bit memory bus width is narrower than what some higher-tier cards in this category offer, limiting potential bandwidth scaling
  • No USB-C output is available, which may be inconvenient for users with USB-C monitors or VR headsets
  • Air-water hybrid cooling is not supported, so users seeking liquid-assisted thermal solutions will need a separate setup
  • At 316.5mm in length, the card may not fit in smaller or compact PC cases
  • A 250W TDP places meaningful demands on the power supply and system cooling within a build
Who is this for?

This card is well-suited to users running demanding workloads that benefit from ray tracing and DLSS support, making it a practical choice for those working with graphically intensive games or real-time rendering applications. The 12GB of GDDR7 VRAM paired with 672 GB/s of memory bandwidth also makes it a reasonable fit for content creators handling moderate video editing or 3D rendering tasks. Additionally, users who run multi-monitor setups will find the four-display output support across three DisplayPort and one HDMI 2.1b port genuinely useful for productivity or simulation environments.

Who is this NOT for?

Users working in environments where data reliability is critical at a hardware level beyond ECC — such as professional compute or scientific workloads — may find the 192-bit bus width and 12GB VRAM limiting for very large dataset operations. The card's 316.5mm length and 250W TDP also make it a poor match for compact or small-form-factor builds where physical clearance and power delivery are constrained. Furthermore, users specifically looking for USB-C display connectivity or air-water hybrid cooling will need to look elsewhere, as neither is supported on this model.

Performance:

GPU clock speed 2325 MHz
GPU turbo 2557 MHz
pixel rate 204.6 GPixel/s
floating-point performance 31.42 TFLOPS
texture rate 490.9 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 Performance section of this card is defined by a base GPU clock of 2325 MHz that boosts up to 2557 MHz under load, backed by 6144 shading units and 192 texture mapping units delivering a texture rate of 490.9 GTexels/s. Its pixel rate reaches 204.6 GPixel/s through 80 render output units, while overall compute throughput comes in at 31.42 TFLOPS of floating-point performance. The GPU memory operates at 1750 MHz, and the card does support Double Precision Floating Point (DPFP), rounding out a well-specified performance profile.

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 ✓

This card carries 12GB of GDDR7 VRAM running across a 192-bit memory bus, with an effective memory speed of 28000 MHz that translates to a maximum memory bandwidth of 672 GB/s. ECC memory support is also present, which helps maintain data integrity 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 card supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, covering a broad range of graphics and compute workloads. Ray tracing and DLSS are both supported, while XeSS (XMX) is not. Multi-display output is available across up to four screens, and Intel Resizable BAR is supported for improved CPU-to-GPU data throughput. Additional features include stereoscopic 3D support and RGB lighting, whereas LHR is not present on this model.

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

This card's output configuration consists of three DisplayPort outputs and one HDMI 2.1b port, totaling four display connectors. There are no USB-C, DVI, or mini DisplayPort 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 316.5 mm
height 140.1 mm

Built on the Blackwell architecture and fabricated using a 5nm process, this GPU integrates 31,100 million transistors and connects via PCIe 5.0. It carries a Thermal Design Power of 250W and measures 316.5mm in width and 140.1mm in height. Cooling is handled without an air-water hybrid system, and the card does not include that type of cooling solution.

Final Verdict

The Galax GeForce RTX 5070 Magic Blade OC is a well-specified graphics card built on the Blackwell architecture, bringing together ray tracing, DLSS, and 672 GB/s of GDDR7 memory bandwidth in a package that targets users who want capable modern rendering features without stepping into flagship territory. Its four-display output support and ECC memory add practical value for both creative and multi-monitor use cases, though its 316.5mm length, 250W TDP, and 192-bit bus width are factors that warrant attention depending on the build and workload in question. Overall, it represents a technically coherent option for mid-to-high-range desktop builds where Blackwell-generation features and GDDR7 throughput are the priority.