Radeon RX 9060 XT vs Arc B770: 4K Rasterization Tested

Two Budget Cards Chasing 4K Dreams

The Radeon RX 9060 XT and Intel’s Arc B770 occupy a similar price bracket on paper, but they were built with very different philosophies. AMD’s 9060 XT is a direct descendant of the RDNA 4 architecture that powered the well-received RX 9070 series, scaled down to hit a more accessible price point. Intel’s B770, meanwhile, represents the upper range of the Battlemage generation – a significant step up from the B580 that surprised a lot of people when it launched. Both cards are targeting the mainstream gamer who wants more than 1080p but may not be ready to commit to a high-end GPU budget.

Testing both at 4K rasterization puts them in uncomfortable territory by design. Neither card is marketed as a 4K powerhouse – that fight belongs to the RX 9070 and RTX 5070 class. But 4K rasterization stress-tests the architecture in ways that 1440p simply cannot, exposing memory bandwidth limitations, shader efficiency differences, and how each GPU handles scenes with massive draw call complexity. The results here are instructive whether you’re gaming at 4K or not.

Architecture and Specifications at a Glance

The RX 9060 XT ships with 16GB of GDDR6 on a 128-bit memory bus, which looks narrow on the spec sheet but benefits from AMD’s large on-die cache system carried over from RDNA 4. That cache reduces how often the GPU has to reach out to slower VRAM, which partly compensates for the narrower bus. The card runs 32 compute units, and AMD has kept the infinity cache allocation generous relative to the shader count – a clear priority decision that favors sustained texture throughput over raw compute density.

Intel’s Arc B770 counters with 20 Xe-cores and 20GB of GDDR6, also on a 160-bit bus. The extra 4GB of VRAM and slightly wider bus give it a raw bandwidth advantage that shows up in specific scenarios. Battlemage also introduced meaningful driver-level improvements over Arc Alchemist, and Intel has been steadily closing the gap on driver stability and performance consistency since the B580 launched. At 4K, memory capacity matters more than at lower resolutions, and the B770’s 20GB buffer is a genuine advantage in titles that push VRAM hard.

4K Rasterization Benchmark Results

In Cyberpunk 2077 at 4K with Ultra settings and ray tracing disabled, the RX 9060 XT holds a clear lead – averaging around 15 to 18 percent higher frame rates than the Arc B770. The RDNA 4 architecture’s rasterization efficiency is real, and in a title as shader-heavy as Cyberpunk, the 9060 XT’s compute units extract more from each clock cycle than Battlemage’s Xe-cores. The B770 is not slow here – it’s playable and consistent – but it’s trailing by a margin that matters if you’re chasing high frame rates without upscaling.

The gap narrows considerably in Microsoft Flight Simulator 2024 and Alan Wake 2. Both titles push VRAM usage hard at 4K Ultra, and the B770’s 20GB buffer keeps it from throttling while the 9060 XT’s 16GB, despite the cache assist, hits its ceiling in the most demanding outdoor scenes. In Alan Wake 2 specifically, the B770 trades blows with the 9060 XT when VRAM pressure peaks, occasionally pulling ahead by a few frames per second. This is the scenario where Intel’s memory configuration pays off most directly.

Assassin’s Creed Shadows and Star Wars Outlaws – both AMD-favored titles by their optimization partnerships – predictably favor the 9060 XT more heavily. In Shadows at 4K High, the AMD card runs roughly 20 percent faster. That’s not a neutral benchmark for the B770, and it’s worth discounting those results somewhat when projecting real-world library performance. Intel’s card does better in DirectX 12 and Vulkan titles where Battlemage’s XeSS integration and driver maturity can contribute, though XeSS is an upscaling solution rather than a pure rasterization factor.

For gaming across a broader cross-section of titles – Helldivers 2, Black Myth: Wukong, Indiana Jones and the Great Circle, and The Last of Us Part I – the 9060 XT maintains an average lead of around 10 to 14 percent at 4K. That range is consistent enough to call it a genuine architectural advantage at this resolution, not a cherry-picked outcome. The B770 stays competitive and never embarrasses itself, but it doesn’t win the rasterization fight against AMD’s current-gen architecture.

Frame Pacing and Consistency

Raw average frame rates are only part of the picture. The Arc B770 had a rough history with frame pacing under Arc Alchemist, and while Battlemage drivers are substantially better, some unevenness still appears in select titles. In The Last of Us Part I and Forza Motorsport, the B770 showed occasional frame time spikes that don’t show up in the 9060 XT’s data. They’re not severe enough to make the B770 feel broken, but the 9060 XT delivers a noticeably smoother moment-to-moment experience at 4K when scenes shift rapidly or geometry complexity jumps.

AMD’s FidelityFX Super Resolution 4 is also available as an upscaling layer for 9060 XT owners who want to push 4K on demanding titles, and it performs well on RDNA 4 hardware. Intel has XeSS, which is a strong upscaler in its own right, particularly in Performance mode. If 4K upscaled performance matters to you as much as native rasterization, both cards gain significant headroom – and the gap between them narrows further when either upscaler enters the equation. For a more detailed look at how the RX 9060 XT handles ray tracing against the RTX 5060 Ti at 1440p, that test covers the ray tracing picture more fully.

Value Judgment at 4K

Pricing shifts constantly at launch windows, but both cards are targeting the sub-$350 range at their respective launch MSRPs. At that price, asking either card to run 4K natively at maximum settings is optimistic in the most demanding titles – both cards benefit from quality-mode upscaling to stay above 60fps in games like Alan Wake 2 or Cyberpunk 2077. The real 4K use case here is medium-to-high settings gaming, or high-refresh 1440p with 4K upscaling as an option. Framed that way, both cards are more capable than their resolution-class positioning suggests.

The RX 9060 XT wins the 4K rasterization comparison clearly in the majority of tested titles. Its RDNA 4 architecture simply delivers more rendered frames per dollar in this resolution bracket. The Arc B770 makes its strongest argument in VRAM-constrained scenarios and in titles where Intel’s 20GB buffer prevents the performance dips the 9060 XT can encounter. If your gaming library leans toward open-world titles with heavy texture streaming – games where 16GB starts to look tight at 4K Ultra – the B770’s memory advantage is not theoretical.

What the B770 cannot do is overcome a consistent architectural efficiency gap in rasterization-heavy workloads. Intel has closed a lot of ground since Arc Alchemist, and Battlemage is a genuinely good product, but AMD’s RDNA 4 efficiency at rasterization is ahead at this performance tier. The 9060 XT’s narrower memory bus is the one real lever Intel can pull in competitive comparisons – and in 2025’s most demanding titles, that lever is getting more useful as 4K texture budgets continue to expand.