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fp32 fma() builtin

The fp32 scalar test with the explicit fma(x, a, b) builtin in place of x * a + b. WGSL lets the compiler contract the latter into an FMA; similar timing is consistent with similar lowering but does not prove contraction.

Measured in FLOP/s. Higher values mean better performance. Benchmark your device.

Performance distribution

 
1.34 GFLOP/s335 GFLOP/s83.8 TFLOP/s

Performance thresholds

99% of results achieve at least 7.13 GFLOP/s

95% of results achieve at least 96 GFLOP/s

90% of results achieve at least 225 GFLOP/s

Median (50th percentile) 2.7 TFLOP/s

Best performer

Highest recorded performance: 83.8 TFLOP/s. View benchmark profile.

Recorded 9/14/2026, 2:52:24 PM

WebGPU device
Vendornvidia
Device—
Architectureblackwell
Description—
WebGL device
VendorGoogle Inc. (NVIDIA)
RendererANGLE (NVIDIA, NVIDIA GeForce RTX 5090 (0x00002B85) Direct3D11 vs_5_0 ps_5_0, D3D11)
Browser
NameChrome
Version153.0.0.0
Operating system
NameWindows
Version10