Gainward GeForce RTX 5070 Phoenix-S VS MSI GeForce RTX 5070 Shadow 3X

In the Performance category, the Gainward RTX 5070 Phoenix-S and the MSI RTX 5070 Shadow 3X are in a complete dead heat. Every single core compute metric is shared: a base GPU clock of 2325 MHz, a turbo boost of 2512 MHz, 6144 shading units, 192 TMUs, and 80 ROPs. This is expected, as both are custom board partner designs built on the same RTX 5070 silicon running at reference clocks.

The practical consequence of identical clocks and shader counts is that raw throughput figures are also indistinguishable: 30.87 TFLOPS of floating-point performance, a texture rate of 482.3 GTexels/s, and a pixel fill rate of 201 GPixel/s. In real-world rendering workloads — rasterization, ray tracing setup, and compute-heavy tasks — these two cards will produce frame times that are statistically interchangeable before thermal and power-limit behavior comes into play. Memory speed is also matched at 1750 MHz, meaning memory bandwidth, which directly affects high-resolution texture streaming and large dataset compute, is equivalent as well.

Both cards support Double Precision Floating Point (DPFP), which matters for scientific compute and certain professional simulation workflows, though on consumer GeForce parts DPFP throughput is typically throttled relative to the full-precision path. On pure spec-sheet performance, this group is an unambiguous tie: neither the Phoenix-S nor the Shadow 3X holds any advantage whatsoever. Differentiators between these two cards will need to be found elsewhere — in cooling design, power delivery, or software features.

The memory subsystems of the Gainward RTX 5070 Phoenix-S and the MSI RTX 5070 Shadow 3X are spec-for-spec identical. Both carry 12GB of GDDR7 VRAM across a 192-bit bus, operating at an effective speed of 28000 MHz — figures that translate directly to a peak bandwidth of 672 GB/s. That bandwidth number is the headline: it represents a substantial generational leap over GDDR6X, and in practice means the GPU can feed its shader array with far less latency starvation during texture-heavy or high-resolution workloads.

The 192-bit bus width is worth contextualizing. It sits below the 256-bit interfaces found on higher-tier GPUs, but GDDR7′s superior data rate per pin largely compensates, delivering bandwidth figures that would have required a wider bus in previous generations. For 1440p gaming and most 4K scenarios, 672 GB/s is more than sufficient; only the most bandwidth-hungry edge cases — such as very large AI inference models or extreme texture streaming — would expose any ceiling. The 12GB VRAM capacity is adequate for current AAA titles at high resolutions, though users working with large generative AI models or professional visualization datasets may occasionally feel the constraint.

Both cards also support ECC (Error-Correcting Code) memory, a feature that detects and corrects single-bit memory errors on the fly. While rarely relevant in pure gaming, it adds a layer of data integrity that workstation and compute users will appreciate. As with the Performance group, the Memory category ends in a complete tie — every measurable attribute is shared, and neither card offers any advantage here.

Across the software and API feature set, these two cards are functionally equivalent. Both support DirectX 12 Ultimate — the full suite that unlocks hardware ray tracing, mesh shaders, variable-rate shading, and sampler feedback in compatible titles — alongside OpenGL 4.6 and OpenCL 3, covering the breadth of gaming, creative, and compute workloads. DLSS support is present on both, giving users access to NVIDIA′s AI-driven upscaling and frame generation pipeline, which can dramatically boost effective frame rates with minimal perceptible quality loss. Neither card supports XeSS, which is an Intel-specific technology and entirely expected on NVIDIA hardware.

Multi-display support is capped at 4 simultaneous outputs on both cards, which is ample for the vast majority of users including those running triple-monitor gaming rigs or mixed productivity setups. Intel Resizable BAR is enabled on both, allowing the CPU to access the full VRAM pool at once rather than in smaller chunks — a feature that delivers modest but real performance gains in supported games without any user configuration overhead.

The sole differentiator in this group is RGB lighting: the Gainward Phoenix-S includes it, while the MSI Shadow 3X does not. This has no bearing on performance whatsoever, but it is a meaningful distinction for builders who prioritize aesthetics or want their GPU to integrate with a synchronized lighting ecosystem. For those users, the Phoenix-S holds a clear edge here. Those indifferent to lighting will find the two cards identical in every feature that affects real-world usability.

Port selection is another area where the Gainward RTX 5070 Phoenix-S and the MSI RTX 5070 Shadow 3X offer exactly the same configuration: one HDMI 2.1b port and three DisplayPort outputs, for a total of four display connections — matching the maximum supported display count noted in the Features group. Neither card includes USB-C, DVI, or mini DisplayPort outputs.

The presence of HDMI 2.1b is worth noting for TV and home-theater users, as this version supports the bandwidth needed for 4K at high refresh rates and 8K output, along with features like Variable Refresh Rate passthrough. The three DisplayPort outputs cover the needs of multi-monitor desktop setups comfortably, whether that is a triple 1440p gaming array or a mixed productivity arrangement. The absence of USB-C is the one omission some users may notice — particularly those with newer USB-C monitors or who prefer a single-cable connection to a display — but it is a common trade-off on mid-range board partner designs.

With no differences between the two cards on any port type, version, or count, this category is a straightforward tie. Buyers can make their decision entirely on other factors without any concern about display connectivity.

At a foundational level, the Gainward RTX 5070 Phoenix-S and the MSI RTX 5070 Shadow 3X share the same silicon DNA: both are built on NVIDIA′s Blackwell architecture using a 5nm process node, packing 31.1 billion transistors and drawing a 250W TDP. The 5nm node is what enables this transistor density at a manageable power envelope, and the shared TDP means both cards will make identical demands on your power supply and case airflow — no surprises for either buyer on that front. Both connect via PCIe 5.0, ensuring full bandwidth headroom for current and near-future platform configurations.

Where these two cards genuinely diverge is physical footprint. The Phoenix-S measures 331.9 mm × 127.1 mm, while the Shadow 3X comes in at a more compact 303 mm × 121 mm — nearly 29mm shorter in length and 6mm slimmer in height. That difference is not trivial: in smaller ATX cases or any build where GPU clearance is tight, the Shadow 3X′s reduced length can be the deciding factor between a card that fits cleanly and one that requires compromise. Both use air cooling exclusively, so the size difference reflects a genuine engineering distinction in cooler design rather than a switch in cooling medium.

For users building in full-tower or mid-tower cases with ample GPU clearance, this distinction is largely academic. But for anyone working within a space-constrained enclosure, the MSI Shadow 3X holds a meaningful practical edge in this group purely by virtue of its more compact dimensions.