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Qualcomm_849_adpkg vs Qualcomm Technologies Inc. Adreno Vulkan Driver

On Adreno (TM) 825 (Nothing Phone (3), OnePlus Nord 6, Oppo K13 Turbo Pro 5G, Poco F7, Poco F7, REDMI Turbo 4 Pro). The first driver named is compared against the second, which is the baseline.

StockQualcomm Technologies Inc. Adreno Vulkan DriverDriver Build: 208ca19915, Iab05a79315, 1770369230

CustomQualcomm_849_adpkgDriver Build: a2a1a29a71, Icb4aa5a425, 1758706229

Graphics system version (Vulkan)1.3.284 to 1.4.295

Optional features (extensions)165 to 174+9 -0

Features that pass their check (validated)44 to 44both pass the same checks

Speed test scenes (benchmark)4 faster 0 slower47% faster 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_2160p136% faster
oit_linked_lists57% faster
pipeline_barriers_2160p9% faster
subpasses_2160p16% faster

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 2 scenes (pipeline_barriers: 965 of 2304 cells, pipeline_barriers_2160p: 1418 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_849_adpkg 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	Custom ms	Difference	Starts	GPU clock, MHz	Picture vs stock
compute_nbody	n/a	10.05	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	26.55 typical 26.57	11.23 typical 11.04	136% faster	3 of 3 vs 3 of 3	? vs ? clock unknown	no large difference 0.0 no small difference worst 0.3 64x36
oit_linked_lists	26.88 typical 26.90	17.12 typical 16.76	57% faster	3 of 3 vs 3 of 3	? vs ? clock unknown	no large difference 0.0 no small difference worst 0.0 64x36
pipeline_barriers	2.82 typical 2.76	3.07 typical 2.46	too light, see pipeline_barriers_2160p	3 of 3 vs 3 of 3	? vs ? clock unknown	no large difference 5.0 differs in 965 small areas worst 60.7 64x36
pipeline_barriers_2160p	9.97 typical 9.96	9.15 typical 9.17	9% faster	3 of 3 vs 3 of 3	? vs ? clock unknown	no large difference 9.2 differs in 1418 small areas worst 69.3 64x36
subpasses	n/a	3.55	too light, see subpasses_2160p	3 of 3 vs 3 of 3	? vs ? clock unknown	not checked
subpasses_2160p	17.23 typical 17.20	14.89 typical 14.83	16% faster	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_849_adpkg 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_849_adpkg (9)

VK_EXT_graphics_pipeline_library
VK_EXT_host_image_copy
VK_EXT_map_memory_placed
VK_EXT_non_seamless_cube_map
VK_EXT_pipeline_robustness
VK_EXT_subpass_merge_feedback
VK_KHR_compute_shader_derivatives
VK_KHR_pipeline_binary
VK_KHR_pipeline_library

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

None

Core features that differ (17)

bresenhamLines Vulkan 1.4	unsupported to pass
dynamicRenderingLocalRead Vulkan 1.4	unsupported to pass
globalPriorityQuery Vulkan 1.4	unsupported to pass
hostImageCopy Vulkan 1.4	unsupported to pass
indexTypeUint8 Vulkan 1.4	unsupported to pass
maintenance5 Vulkan 1.4	unsupported to pass
maintenance6 Vulkan 1.4	unsupported to pass
pipelineProtectedAccess Vulkan 1.4	unsupported to pass
pipelineRobustness Vulkan 1.4	unsupported to pass
pushDescriptor Vulkan 1.4	unsupported to pass
rectangularLines Vulkan 1.4	unsupported to pass
shaderExpectAssume Vulkan 1.4	unsupported to pass
shaderFloatControls2 Vulkan 1.4	unsupported to pass
shaderSubgroupRotate Vulkan 1.4	unsupported to pass
shaderSubgroupRotateClustered Vulkan 1.4	unsupported to pass
vertexAttributeInstanceRateDivisor Vulkan 1.4	unsupported to pass
vertexAttributeInstanceRateZeroDivisor Vulkan 1.4	unsupported to pass

Limits that differ (2)

Limit	Stock	Custom
sparseAddressSpaceSize	562949953421311	4294967295
discreteQueuePriorities	3	4

Formats supported by only one driver (2 gained, 0 lost)

Only in Qualcomm_849_adpkg:

G10X6_B10X6R10X6_2PLANE_422_UNORM_3PACK16
G16_B16R16_2PLANE_420_UNORM

Only in Qualcomm Technologies Inc. Adreno Vulkan Driver:

None