Could you please provide the contents of about:gpu (copy/pasted plaintext preferred) and tell us what kind of machine you have?

Do you have two GPUs in your system and if so have you changed Chrome to run on the discrete GPU in NVIDIA's control panel?

same problem here on win10, gtx 1800. here's mine:

Graphics Feature Status
Canvas: Software only, hardware acceleration unavailable
CheckerImaging: Disabled
Flash: Software only, hardware acceleration unavailable
Flash Stage3D: Software only, hardware acceleration unavailable
Flash Stage3D Baseline profile: Software only, hardware acceleration unavailable
Compositing: Software only, hardware acceleration unavailable
Multiple Raster Threads: Enabled
Native GpuMemoryBuffers: Software only. Hardware acceleration disabled
Rasterization: Software only, hardware acceleration unavailable
Video Decode: Software only, hardware acceleration unavailable
Video Encode: Software only, hardware acceleration unavailable
WebGL: Hardware accelerated but at reduced performance
WebGL2: Unavailable
Driver Bug Workarounds
clear_uniforms_before_first_program_use
decode_encode_srgb_for_generatemipmap
disable_discard_framebuffer
disable_dxgi_zero_copy_video
disable_framebuffer_cmaa
exit_on_context_lost
force_cube_complete
scalarize_vec_and_mat_constructor_args
texsubimage_faster_than_teximage
Problems Detected
Some drivers are unable to reset the D3D device in the GPU process sandbox
Applied Workarounds: exit_on_context_lost
TexSubImage is faster for full uploads on ANGLE
Applied Workarounds: texsubimage_faster_than_teximage
Clear uniforms before first program use on all platforms: 124764, 349137
Applied Workarounds: clear_uniforms_before_first_program_use
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
ANGLE crash on glReadPixels from incomplete cube map texture: 518889
Applied Workarounds: force_cube_complete
Framebuffer discarding can hurt performance on non-tilers: 570897
Applied Workarounds: disable_discard_framebuffer
Limited enabling of Chromium GL_INTEL_framebuffer_CMAA: 535198
Applied Workarounds: disable_framebuffer_cmaa
Zero-copy NV12 video displays incorrect colors on NVIDIA drivers.: 635319
Applied Workarounds: disable_dxgi_zero_copy_video
Disable KHR_blend_equation_advanced until cc shaders are updated: 661715
Decode and Encode before generateMipmap for srgb format textures on Windows: 634519
Applied Workarounds: decode_encode_srgb_for_generatemipmap
Native GpuMemoryBuffers have been disabled, either via about:flags or command line.
Disabled Features: native_gpu_memory_buffers
Checker-imaging has been disabled via finch trial or the command line.
Disabled Features: checker_imaging
Version Information
Data exported	6/26/2017, 10:41:36 PM
Chrome version	Chrome/60.0.3112.40
Operating system	Windows NT 10.0.15063
Software rendering list version	13.7
Driver bug list version	10.91
ANGLE commit id	f1ca5288afea
2D graphics backend	Skia/60 bb20c118c615565e31f1bd0bff0f6c9387f3d0cf-
Command Line	"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --flag-switches-begin --enable-devtools-experiments --enable-es3-apis --enable-zero-copy --flag-switches-end
Driver Information
Initialization time	188
In-process GPU	false
Passthrough Command Decoder	false
Supports overlays	false
Sandboxed	true
GPU0	VENDOR = 0x10de, DEVICE= 0x1b80
Optimus	false
Optimus	false
AMD switchable	false
Desktop compositing	Aero Glass
Diagonal Monitor Size of \\.\DISPLAY2	19.0"
Diagonal Monitor Size of \\.\DISPLAY1	26.9"
Diagonal Monitor Size of \\.\DISPLAY2	26.9"
Diagonal Monitor Size of \\.\DISPLAY3	26.9"
Diagonal Monitor Size of \\.\DISPLAY4	26.9"
Diagonal Monitor Size of \\.\DISPLAY1	26.9"
Driver vendor	Google Inc.
Driver version	3.3.0.2
Driver date	2017/04/07
Pixel shader version	3.0
Vertex shader version	3.0
Max. MSAA samples	4
Machine model name	
Machine model version	
GL_VENDOR	Google Inc.
GL_RENDERER	Google SwiftShader
GL_VERSION	OpenGL ES 2.0 SwiftShader
GL_EXTENSIONS	
Disabled Extensions	GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent
Window system binding vendor	Google Inc. (adapter LUID: 0000000000008c67)
Window system binding version	1.4 (ANGLE 2.1.0.f1ca5288afea)
Window system binding extensions	EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture_nv12 EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_CHROMIUM_sync_control EGL_EXT_pixel_format_float EGL_ANGLE_display_texture_share_group EGL_ANGLE_create_context_client_arrays EGL_ANGLE_create_context_robust_resource_initialization
Direct rendering	Yes
Reset notification strategy	0x0000
GPU process crash count	3
Compositor Information
Tile Update Mode	Zero-copy
Partial Raster	Enabled
GpuMemoryBuffers Status
ATC	Software only
ATCIA	Software only
DXT1	Software only
DXT5	Software only
ETC1	Software only
R_8	Software only
RG_88	Software only
BGR_565	Software only
RGBA_4444	Software only
RGBX_8888	Software only
RGBA_8888	Software only
BGRX_8888	Software only
BGRA_8888	Software only
RGBA_F16	Software only
YVU_420	Software only
YUV_420_BIPLANAR	Software only
UYVY_422	Software only

software is unusable for any kind of WebGL content, this is a critical issue. Here's a pretty minimal example that stutters at sub 30fps on my hardware: https://threejs.org/examples/#webgl_geometry_cube

Nicolas, for some reason we're falling back to SwiftShader on high-end NVIDIA GPUs. Can you please triage this?

Ken I think this might be a problem because of a bad merge from  issue 735986 

Looking at about:gpu, "GPU process crash count	3" and this version of beta had the bad CL. Closing as a duplicate - this should be fixed now.

Thanks Jamie for the analysis and the heads up.

Submitter, please test with the next beta build that will follow 60.0.3112.40. Thanks.

I can confirm that for me this issue has disappeared.