dp4a integer dot product

The dp4a instruction — four INT8 multiply-accumulates per lane, no tensor core.

How this path is measured

Register-resident dp4a.s32.s32 issue rate: eight independent accumulator chains per warp, best of three timed runs.

Governed by the SM speed-select fuse: no

What the unlock changes on this path

8 rows over 8 cards. 0 improved by more than 5%, 8 did not; the largest gain is GeForce RTX 4070 SUPER at 1.00×.

ModeStockUnlockedGainCard
dp4a · control mode76.476.5 TF/s1.00×GeForce RTX 4070 SUPER · AD104 · 56 SMs
dp4a · control mode66.666.6 TF/s1.00×GeForce RTX 4070 (Gigabyte) · AD104 · 46 SMs
dp4a · control mode17.717.7 TF/s1.00×GeForce RTX 3050 6GB · GA107 · 18 SMs
dp4a · control mode103.9103.8 TF/s1.00×GeForce RTX 4080 SUPER · AD103 · 80 SMs
dp4a · control mode84.184.0 TF/s1.00×GeForce RTX 4070 Ti · AD104 · 60 SMs
dp4a164.5164.1 TF/s1.00×GeForce RTX 4090 · AD102 · 128 SMs
dp4a · control mode106.0105.8 TF/s1.00×GeForce RTX 4080 · AD103 · 76 SMs
dp4a · control mode65.865.7 TF/s1.00×GeForce RTX 4070 (AD103) · AD103 · 46 SMs

The smallest ratio in this set is GeForce RTX 4070 (AD103) at 1.00×.

Reading the numbers

A 1.00× row is not a failed unlock. It says that particular path was never rate-limited, so the override had nothing to restore. If you benchmark your own card and see 1.00× on the mode you care about, the unlock may well have applied correctly and simply does not help that workload.

Other measurement paths