Best $1800 PC Build for Warhammer 40,000: Space Marine 2 (2026)

Even at $1800, Warhammer 40,000: Space Marine 2 returns 82 FPS on High at 1440p — 38 short of 120 Hz. That is what this engine costs: 60 Hz native on the RX 7800 XT, 120 Hz once Shadow Quality gives or the upscaler does.

Above the RX 7800 XT sits the RTX 5070 TI, worth 112 FPS in Warhammer 40,000: Space Marine 2 at 1440p: 30 frames, roughly 37%. Street pricing settles that one. The $850 ceiling is what keeps $1800 balanced rather than a Warhammer 40,000: Space Marine 2 GPU bolted to a starved platform.

Saber's Swarm engine puts hundreds of individually simulated Tyranids on screen at once, each a real entity with its own pathing and collision rather than a crowd shader — and that is the entire selling point of the game. The Operations missions that look most impressive in a trailer are exactly the ones where the CPU, not the graphics card, sets your frame rate. Because Warhammer 40,000: Space Marine 2 is CPU-bound, $1800 is better tilted toward the AMD Ryzen 7 7700 than a generic build at this price would be. A card past the RX 7800 XT waits on frames the processor has not finished.

Measured across resolutions, the RX 7800 XT in Warhammer 40,000: Space Marine 2 reads — 1080p: 106 FPS, on Ultra, asking about 8 GB; 1440p: 82 FPS, on High, asking about 9 GB; 4K: 47 FPS, on High, asking about 11 GB. Quoted at 1440p for $1800. The step to the next rung is where Warhammer 40,000: Space Marine 2 stops being free and Shadow Quality becomes the question.

Warhammer 40,000: Space Marine 2 on High at 1440p calls for something like 9 GB of video memory, against 16 GB on the RX 7800 XT — 7 GB spare, enough that Warhammer 40,000: Space Marine 2 textures are not a decision a $1800 buyer has to make.

Warhammer 40,000: Space Marine 2 ships DLSS and FSR. Even at $1800, DLSS on Quality is what carries Warhammer 40,000: Space Marine 2 to 120 Hz; Shadow Quality is the second resort.