AX Gaming Rebel GeForce RTX 5080 X3W Max VS Colorful iGame GeForce RTX 5080 Vulcan OC

At their core, both the AX Gaming Rebel RTX 5080 X3W Max and the Colorful iGame RTX 5080 Vulcan OC share the same fundamental GPU silicon: identical 2295 MHz base clocks, the same 10,752 shading units, 336 TMUs, and 112 ROPs, along with matching 1875 MHz memory speeds. This means their theoretical rendering pipelines and memory bandwidth are built on an equal foundation — any real-world difference in performance will come down to how aggressively each card boosts under load.

That is precisely where the Colorful iGame Vulcan OC carves out a narrow but consistent advantage. Its 2695 MHz boost clock edges out the Rebel's 2670 MHz by 25 MHz, which cascades into marginally higher figures across every computed throughput metric: 57.95 TFLOPS of floating-point performance versus 57.42 TFLOPS, a texture rate of 905.5 GTexels/s versus 897.1 GTexels/s, and a pixel rate of 301.8 GPixel/s versus 299 GPixel/s. In isolation each gap is under 1%, which in practice translates to differences well within the margin of frame-to-frame variance in most workloads.

Based strictly on these specs, the Colorful iGame Vulcan OC holds a slight performance edge in the Performance category, driven entirely by its higher boost clock. For gamers or creators running sustained GPU-bound workloads, that advantage is real but marginal — likely imperceptible without a benchmark. If raw peak throughput is the deciding factor, the Vulcan OC wins; if the two cards are similarly priced, it earns a narrow recommendation on performance grounds alone.

On memory, these two cards are in complete lockstep. Both carry 16GB of GDDR7 across a 256-bit bus, delivering an effective memory speed of 30,000 MHz and a peak bandwidth of 960 GB/s — and both support ECC memory. There is not a single differentiating data point in this entire spec group.

That shared spec sheet is still worth contextualizing. GDDR7 at 960 GB/s represents a substantial generational leap in memory bandwidth, which directly benefits high-resolution texturing, large AI model inference, and bandwidth-hungry rendering tasks like path tracing. The 256-bit bus is a deliberate architectural choice that, paired with GDDR7's efficiency, delivers this bandwidth without the die-area cost of a wider interface. ECC support adds a layer of data integrity useful in professional and compute workloads, not just gaming.

This group is a complete tie. Neither the Rebel X3W Max nor the Vulcan OC holds any memory advantage whatsoever — buyers should look to other specification groups, such as performance clocks or cooling solutions, to differentiate between these two cards.

Feature parity is total here. The Rebel X3W Max and the Vulcan OC share every capability in this group without exception — from DirectX 12 Ultimate and ray tracing support to DLSS, OpenCL 3, and support for up to 4 simultaneous displays. Both also include Intel Resizable BAR, which allows the CPU to access the full GPU frame buffer at once, reducing bottlenecks in CPU-to-GPU data transfers in supported games.

The software and API stack matters here. DirectX 12 Ultimate is the current ceiling for gaming feature sets, unlocking hardware-accelerated ray tracing, mesh shaders, and variable rate shading in supported titles. DLSS — NVIDIA's AI-driven upscaling technology — is a meaningful real-world advantage over non-NVIDIA alternatives, allowing users to render at lower internal resolutions and reconstruct sharp, high-framerate output with minimal visual compromise. Neither card supports XeSS, which is expected given that is an Intel-native feature.

Like the memory group, this is a dead heat. Every feature the Vulcan OC offers, the Rebel X3W Max matches identically, and vice versa. Buyers prioritizing software capabilities and API support will find no reason to prefer one over the other on these grounds alone.

The port layouts are nearly identical, with one notable exception: the Colorful iGame Vulcan OC ships with 2 HDMI 2.1b ports, while the Rebel X3W Max offers just 1. Both cards provide the same 3 DisplayPort outputs, bringing the Vulcan OC's total display output count to 5 versus the Rebel's 4 — though both are capped at 4 simultaneous displays per the features spec group.

That second HDMI port is more useful than it might first appear. HDMI remains the dominant connection standard for televisions, AV receivers, and many consumer monitors, meaning users who want to drive a TV alongside a primary monitor — without relying on a DisplayPort-to-HDMI adapter — will find the Vulcan OC's dual HDMI layout considerably more convenient. HDMI 2.1b on both cards supports the bandwidth needed for 4K at high refresh rates and 8K output, so the version parity means no trade-off in display quality between them.

The Colorful iGame Vulcan OC holds a clear edge in this group. The extra HDMI port adds genuine flexibility for multi-display configurations that mix HDMI-native devices, and it does so without sacrificing anything else in the port layout. For users with a single monitor setup, this distinction is irrelevant — but for anyone running a hybrid display environment, it is a meaningful practical advantage.

Beneath the surface, these two cards are built from the same foundation: identical Blackwell architecture, the same 5nm process node, the same 45.6 billion transistors, and PCIe 5.0 connectivity. Their physical footprints are virtually indistinguishable — a 2mm difference in width and under 1mm in height means both will fit or fail to fit the same cases. The meaningful divergence in this group comes down to one number: power consumption.

The Vulcan OC carries a 400W TDP versus the Rebel X3W Max's 360W — a 40W gap, or roughly an 11% increase. This has cascading practical implications. Users will need a power supply with adequate headroom to accommodate the higher draw, and the extra thermal output places greater demand on case airflow. It also contextualizes the Vulcan OC's slightly higher boost clocks from the Performance group: that 25 MHz advantage comes at the cost of meaningfully more power being fed to the card.

For this group, the Rebel X3W Max holds a clear advantage in power efficiency. It draws 40W less while delivering nearly equivalent performance, which matters for builds with tighter PSU margins, smaller chassis, or simply for users conscious of long-term electricity costs. The Vulcan OC's higher TDP is not a disqualifier, but buyers should factor it into their system planning — it is not a trivial difference.