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Colorful iGame GeForce RTX 5070 Vulcan OC specifications and in-depth review

Colorful iGame GeForce RTX 5070 Vulcan OC

Manufacturer: Colorful

The Colorful iGame GeForce RTX 5070 Vulcan OC is a desktop graphics card from Colorful's iGame lineup, based on NVIDIA's Blackwell GPU architecture. It operates at a base clock of 2325 MHz and reaches a boost frequency of 2587 MHz under load, while its 31.79 TFLOPS of floating-point performance reflects its compute capability. The card also includes RGB lighting and supports up to four simultaneous displays.

On the memory side, the card carries 12GB of GDDR7 VRAM across a 192-bit bus, with an effective speed of 28000 MHz and a peak bandwidth of 672 GB/s. It draws up to 270W and connects via PCIe 5.0, with physical dimensions of 336 mm by 145 mm. Display output options include one HDMI 2.1b port and three DisplayPort connectors. Feature support covers DirectX 12 Ultimate, OpenGL 4.6, OpenCL 3, ray tracing, DLSS, Intel Resizable BAR, and stereoscopic 3D.

Pros
  • Supports ray tracing and DLSS, enabling more advanced rendering techniques in compatible applications
  • 12GB of GDDR7 VRAM with a 672 GB/s bandwidth ceiling gives the card considerable memory throughput for demanding workloads
  • ECC memory support adds data integrity protection, useful for professional or compute-oriented tasks
  • Up to four displays can be connected simultaneously, with output options covering both HDMI 2.1b and three DisplayPort connectors
  • Intel Resizable BAR support allows the CPU to access the full GPU frame buffer, potentially improving data transfer efficiency
  • RGB lighting is present for users who factor aesthetics into their build
Cons
  • 192-bit memory bus width is narrower than what some higher-tier cards in this category offer, limiting maximum bandwidth scaling
  • No USB-C display output is available, which may be a limitation for users with USB-C monitors or devices
  • Air-water hybrid cooling is not included, meaning users requiring liquid cooling solutions will need to look at separate aftermarket options
  • At 336 mm in length, the card requires a sufficiently spacious chassis, which could be a constraint in smaller form-factor builds
  • A 270W TDP places notable demands on the system power supply, requiring users to ensure adequate wattage headroom
Who is this for?

This card is well-suited to users running demanding 3D rendering and gaming workloads that benefit from ray tracing and DLSS support, as the combination of high shader count, strong texture throughput, and GDDR7 memory makes it capable of handling graphically intensive tasks. The 12GB VRAM paired with ECC memory support also makes it a reasonable fit for professional compute and content creation workflows where data accuracy and memory capacity matter. Additionally, users who need to drive multi-monitor setups of up to four displays will find the output configuration practical, particularly with HDMI 2.1b and three DisplayPort connections available.

Who is this NOT for?

Users working within a compact or small form-factor build may find the 336 mm card length a genuine physical constraint, as not all mid-tower or smaller chassis can accommodate it comfortably. The 270W TDP also makes this card a poor fit for systems with modest power supplies, since the overall system power draw would require a unit with substantial headroom. Furthermore, users who rely on USB-C display connectivity or need a hybrid air-water cooling solution will find neither available here, making this card less practical for those specific hardware requirements.

Performance:

GPU clock speed 2325 MHz
GPU turbo 2587 MHz
pixel rate 207 GPixel/s
floating-point performance 31.79 TFLOPS
texture rate 496.7 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 Colorful iGame GeForce RTX 5070 Vulcan OC runs at a base GPU clock of 2325 MHz, climbing to 2587 MHz in turbo mode, and delivers 31.79 TFLOPS of floating-point performance alongside a texture rate of 496.7 GTexels/s and a pixel rate of 207 GPixel/s. Underpinning these figures are 6144 shading units, 192 texture mapping units, and 80 render output units, while GPU memory operates at 1750 MHz. The card also supports Double Precision Floating Point (DPFP), extending its utility to workloads that require higher numerical accuracy.

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 at an effective speed of 28000 MHz across a 192-bit memory bus, yielding a maximum memory bandwidth of 672 GB/s. ECC memory support is also present, adding a layer of data integrity protection for workloads where memory accuracy is a consideration.

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 Colorful iGame GeForce RTX 5070 Vulcan 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, while XeSS (XMX) is not included. The card handles up to four displays simultaneously through its multi-display technology, and Intel Resizable BAR is available for optimized CPU-to-GPU data access. Additional features include stereoscopic 3D support and RGB lighting, though LHR (Lite Hash Rate) 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

The card's output configuration consists of one HDMI 2.1b port and three DisplayPort outputs, allowing connection to up to four displays. There are no DVI, mini DisplayPort, or USB-C ports available on this model.

General info:

GPU architecture Blackwell
Thermal Design Power (TDP) 270W
PCI Express (PCIe) version 5
semiconductor size 5 nm
number of transistors 31100 million
Has air-water cooling ✕
width 336 mm
height 145 mm

Built on the Blackwell architecture using a 5 nm manufacturing process, the card integrates 31,100 million transistors and connects via PCIe 5.0. It carries a Thermal Design Power of 270W and measures 336 mm in width and 145 mm in height. Cooling is handled without an air-water solution, and no such hybrid cooling system is included on this model.

Final Verdict

The Colorful iGame GeForce RTX 5070 Vulcan OC is a well-specified graphics card that brings together the Blackwell architecture, ray tracing, DLSS, and 12GB of high-speed GDDR7 memory with 672 GB/s bandwidth in a package aimed at users with demanding rendering and compute needs. Its support for up to four simultaneous displays, ECC memory, and Intel Resizable BAR rounds out a feature set that extends its usefulness beyond pure gaming into professional workloads. Physical size and power requirements mean it is best matched to a spacious chassis and a robust power supply, but for users whose systems can accommodate it, the Vulcan OC represents a technically thorough option within its category.

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