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Qualcomm Technologies Inc. Adreno Vulkan Driver vs Qualcomm Technologies Inc. Adreno Vulkan Driver

On Adreno (TM) 660 (Asus ROG Phone 5 series, Razer Edge, Samsung Galaxy S21 Ultra 5G, Samsung Galaxy S21+ 5G, Sony Xperia PRO-I). The first driver named is compared against the second, which is the baseline.

StockQualcomm Technologies Inc. Adreno Vulkan DriverDriver Build: a6fd1c3b35, I3c0bc64a9d, 1636540102

CustomQualcomm Technologies Inc. Adreno Vulkan DriverDriver Build: a3cdec2236, Ief33eea0db, 1661255399

Graphics system version (Vulkan)1.1.128 to 1.1.128

Optional features (extensions)74 to 73+0 -1

Features that pass their check (validated)31 to 31both pass the same checks

Speed test scenes (benchmark)0 faster 3 slower47% slower overall (geometric mean)

Games each driver could run (an estimate from its feature list): green likely, yellow maybe, orange limited, red no

StockDX92002+DX102006+DX112009+DX122015+Switch

CustomDX92002+DX102006+DX112009+DX122015+Switch

hdr_2160p49% slower
pipeline_barriers45% slower
subpasses46% slower

Custom driver against stock, per scene. Bars to the right are faster, to the left slower.

Small areas of the picture differ from the stock driver in 1 scene (pipeline_barriers: 1253 of 2304 cells). The picture matches overall, so this is a local rendering fault, not a different scene.

Qualcomm Technologies Inc. Adreno Vulkan Driver details Qualcomm Technologies Inc. Adreno Vulkan Driver details

Feature checks that differ (0)

Every feature check ends the same way on both drivers.

Speed test scenes (benchmark)

The two drivers were not measured on the same set of device models. Frame times from different devices do not compare drivers, so read these numbers with that in mind.

Scene	Stock ms	Qualcomm Technologies Inc. Adreno Vulkan Driver ms	Difference	Starts	GPU clock, MHz	Picture vs stock
compute_nbody	n/a	22.91	only one side	3 of 3 vs 3 of 3	? vs ? clock unknown	no large difference 0.0 no small difference worst 0.0 64x36
hdr_2160p	83.76 typical 86.69	165.48 typical 160.54	49% slower	3 of 3 vs 3 of 3	? vs ? clock unknown	no large difference 0.0 no small difference worst 0.0 64x36
oit_linked_lists	n/a	80.58	only one side	3 of 3 vs 3 of 3	? vs ? clock unknown	no large difference 0.0 no small difference worst 0.0 64x36
pipeline_barriers	11.37 typical 11.38	20.54 typical 20.57	45% slower	3 of 3 vs 3 of 3	? vs ? clock unknown	no large difference 6.2 differs in 1253 small areas worst 63.0 64x36
subpasses	19.45 typical 20.79	36.25 typical 35.96	46% slower	3 of 3 vs 3 of 3	? vs ? clock unknown	not checked

Time to draw one frame, per scene: the average (mean) frame time of the scene's best round, which is how many frames the driver delivered; lower is faster. "Typical" beside it is the median frame, which can sit well under the average when a driver's frames come in two speeds. A pair of reports made before per-round averages were recorded is compared on the median. A scene whose rounds disagree by more than 15% is left out. A scene marked "paced" was held at that mean frame time by the driver or the display queue, together with at least one other scene of the same run; its time says how the frames were spaced, not how fast the driver rendered, so it is not compared. A scene marked "too light" took under 8 ms at the standard size (1920 by 1080) on both drivers, where the screen's frame queue spaces the frames more than the chip does; its heavier run is the one compared: the row ending in _2160p is the scene drawn at 3840 by 2160, and compute_nbody_2x is that scene with twice the particles. "Faster" and "slower" describe Qualcomm Technologies Inc. Adreno Vulkan Driver against Qualcomm Technologies Inc. Adreno Vulkan Driver. "Picture vs stock" compares one fixed frame per scene as a coarse colour grid (0 is identical, above 40 is a different picture); it finds a scene that was not drawn. Where both reports carry the finer 64x36 grid, the second figure is how many of its 2,304 cells differ by more than 4 of 255, and "worst" is the largest single cell; this is what finds a small rendering error in a picture that otherwise matches. A row marked 16x9 comes from a report made before the finer grid existed. "Starts" is how many of a scene's process starts reached a measured round. A GPU clock marked "not comparable" differed by more than 5% of the device's maximum between the two timings.

Technical differences (Vulkan)

Extensions only in Qualcomm Technologies Inc. Adreno Vulkan Driver (0)

None

Extensions only in Qualcomm Technologies Inc. Adreno Vulkan Driver (1)

VK_EXT_hdr_metadata

Core features that differ (0)

None

Limits that differ (0)

Limit	Stock	Qualcomm Technologies Inc. Adreno Vulkan Driver

Formats supported by only one driver (0 gained, 0 lost)

Only in Qualcomm Technologies Inc. Adreno Vulkan Driver:

None

Only in Qualcomm Technologies Inc. Adreno Vulkan Driver:

None