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turnip_faux123_v1.2.5 vs a8xx-gen8-V22

On Adreno (TM) 840 (HONOR Magic8 pro, iQOO 15, LENOVO TB324ZC, nubia NX809J, OnePlus 15, POCO F8 Ultra, POCO F9 Ultra, realme RMX5210, Samsung Galaxy S26, Samsung Galaxy S26, Samsung Galaxy S26 Ultra, Samsung Galaxy S26 Ultra, Samsung Galaxy S26 Ultra, Samsung Galaxy Z Fold8, Samsung Galaxy Z Fold8 Ultra, Xiaomi 17, Xiaomi 2512BPNDAG). The first driver named is compared against the second, which is the baseline.

Stocka8xx-gen8-V22Mesa 26.1.0-devel (git-cb20f767c9)

Customturnip_faux123_v1.2.5Mesa 26.3.0-devel (git-dd45fd0baa)

Graphics system version (Vulkan)1.4.340 to 1.4.359

Optional features (extensions)171 to 179+12 -4

Features that pass their check (validated)66 to 693 pass only on turnip_faux123_v1.2.5 0 pass only on a8xx-gen8-V22

Speed test scenes (benchmark)2 faster 1 slower11% 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_2160p25% faster
oit_linked_lists4% faster
pipeline_barriers46% slower

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

Picture does not match the stock driver in 1 scene (hdr_2160p). The custom driver drew something else there, so its frame time for that scene is not a fair number.

Small areas of the picture differ from the stock driver in 3 scenes (oit_linked_lists: 1610 of 2304 cells, pipeline_barriers: 2295 of 2304 cells, pipeline_barriers_2160p: 2300 of 2304 cells). The picture matches overall, so this is a local rendering fault, not a different scene.

Did not start every time: compute_nbody (stock 0 of 3, custom 3 of 3).

a8xx-gen8-V22 details turnip_faux123_v1.2.5 details

Feature checks that differ (3)

Feature	a8xx-gen8-V22	turnip_faux123_v1.2.5	Change
compat.nested_map core	crash	pass	gained
core.compute_udiv core	fail	pass	gained
core.copy_wide_row_length core	fail	pass	gained

Speed test scenes (benchmark)

Scene	a8xx-gen8-V22 ms	turnip_faux123_v1.2.5 ms	Difference	Starts	GPU clock, MHz	Picture vs stock
compute_nbody	n/a	7.77 typical 7.47	only one side	0 of 3 vs 3 of 3	? vs ? clock unknown	not checked
compute_nbody_2x	n/a	8.92 typical 8.97	only one side	? vs 3 of 3	? vs ? clock unknown	not checked
hdr_2160p	7.59 typical 7.09	6.06 typical 5.78	25% faster	3 of 3 vs 3 of 3	? vs ? clock unknown	differs 82.3 differs in 2304 small areas worst 189.7 64x36
oit_linked_lists	12.24 typical 12.26	11.76 typical 11.74	4% faster	3 of 3 vs 3 of 3	? vs ? clock unknown	no large difference 17.7 differs in 1610 small areas worst 173.7 64x36
pipeline_barriers	1.50 typical 1.42	2.76 typical 2.35	46% slower	3 of 3 vs 3 of 3	? vs ? clock unknown	no large difference 36.1 differs in 2295 small areas worst 129.0 64x36
pipeline_barriers_2160p	n/a	n/a	only one side	3 of 3 vs 3 of 3	? vs ? clock unknown	no large difference 33.4 differs in 2300 small areas worst 115.0 64x36
subpasses	2.09	n/a	only one side	3 of 3 vs 3 of 3	? vs ? clock unknown	not checked
subpasses_2160p	n/a	7.41	only one side	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 turnip_faux123_v1.2.5 against a8xx-gen8-V22. "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 turnip_faux123_v1.2.5 (12)

VK_EXT_debug_marker
VK_EXT_depth_clamp_control
VK_EXT_image_compression_control
VK_EXT_primitive_restart_index
VK_EXT_shader_image_atomic_int64
VK_EXT_shader_subgroup_ballot
VK_EXT_shader_subgroup_vote
VK_EXT_shader_uniform_buffer_unsized_array
VK_EXT_texture_compression_astc_hdr
VK_QCOM_image_processing
VK_QCOM_multiview_per_view_render_areas
VK_QCOM_multiview_per_view_viewports

Extensions only in a8xx-gen8-V22 (4)

VK_EXT_fragment_density_map
VK_EXT_fragment_density_map_offset
VK_QCOM_fragment_density_map_offset
VK_VALVE_fragment_density_map_layered

Core features that differ (2)

multiviewGeometryShader Vulkan 1.1	unsupported to pass
textureCompressionASTC_HDR Vulkan 1.3	unsupported to pass

Limits that differ (3)

Limit	a8xx-gen8-V22	turnip_faux123_v1.2.5
maxTexelBufferElements	134217728	536870911
maxStorageBufferRange	134217728	2147483647
maxFragmentInputComponents	124	128

Formats supported by only one driver (16 gained, 0 lost)

Only in turnip_faux123_v1.2.5:

ASTC_10x10_SFLOAT_BLOCK
ASTC_10x5_SFLOAT_BLOCK
ASTC_10x6_SFLOAT_BLOCK
ASTC_10x8_SFLOAT_BLOCK
ASTC_12x10_SFLOAT_BLOCK
ASTC_12x12_SFLOAT_BLOCK
ASTC_4x4_SFLOAT_BLOCK
ASTC_5x4_SFLOAT_BLOCK
ASTC_5x5_SFLOAT_BLOCK
ASTC_6x5_SFLOAT_BLOCK
ASTC_6x6_SFLOAT_BLOCK
ASTC_8x5_SFLOAT_BLOCK
ASTC_8x6_SFLOAT_BLOCK
ASTC_8x8_SFLOAT_BLOCK
R64_SINT
R64_UINT

Only in a8xx-gen8-V22:

None