United Kingdom

Good sRGB colour gamut laptops

 prices on 268 models  
sRGB ≥ 100%
clear
Show
Laptop Lenovo ThinkPad X1 Carbon Gen 12
  • display 14 ", 1920x1200 (16:10)
  • Core Ultra 7
  • GPU Graphics 4-Cores
  • RAM 32 GB
  • storage 1024 GB
  • weight 1.1 kg
Lenovo ThinkPad X1 Carbon Gen 12
display 14 ", 1920x1200 (16:10), Core Ultra 7, GPU Graphics 4-Cores, RAM 32 GB, storage 1024 GB, weight 1.1 kg
21KC0061RA new
Core Ultra 7155U32 GBGraphics 4-CoresSSD M.2 NVMe1024 GB  out of stock
Laptop Dell Latitude 15 5530
  • display 15.6 ", 1920x1080 (16:9)
  • CPU Intel, Core i5 / Core i7
  • GPU Iris Xe Graphics G7 80EUs / Iris Xe Graphics G7 96EUs
  • RAM 16 GB
  • storage 256 / 512 GB
  • weight 1.59 kg
  • - / 45 %
Dell Latitude 15 5530
display 15.6 ", 1920x1080 (16:9), CPU Intel, Core i5 / Core i7, GPU Iris Xe Graphics G7 80EUs / Iris Xe Graphics G7 96EUs, RAM 16 GB, storage 256 / 512 GB, weight 1.59 kg, - / 45 %
P8H90
Core i51245U16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe256 GB £1,078.12
7XRVJ
Core i71265U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £899.00
 
sRGB ≥ 100%
Clear +2
Laptop Microsoft Surface Laptop Studio
  • display 14.4 ", 2400x1600 (3:2)
  • CPU Intel, Core i5 / Core i7
  • GPU Iris Xe Graphics G7 80EUs - RTX A2000
  • RAM 16 / 32 GB
  • storage 512 - 2048 GB
  • weight 1.7 kg
Microsoft Surface Laptop Studio
0
0
1
0
display 14.4 ", 2400x1600 (3:2), CPU Intel, Core i5 / Core i7, GPU Iris Xe Graphics G7 80EUs - RTX A2000, RAM 16 / 32 GB, storage 512 - 2048 GB, weight 1.7 kg
9Y1-00004
Core i511300H16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £899.97 .. £954.00 
9Y1-00029
Core i511300H16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £1,099.07 .. £1,110.00 
9Y1-00012
Core i511300H16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £2,189.15
ADI-00026
Core i711370H32 GBRTX 3050 TiSSD M.2 NVMe1024 GB £2,160.00
ABY-00004
Core i711370H32 GBRTX 3050 TiSSD M.2 NVMe1024 GB £2,298.90 .. £2,433.00 
AI5-00005
Core i711370H32 GBRTX 3050 TiSSD M.2 NVMe2048 GB £4,599.00
AIK-00029
Core i711370H32 GBRTX A2000SSD M.2 NVMe2048 GB £1,974.60
AIK-00004
Core i711370H32 GBRTX A2000SSD M.2 NVMe2048 GB £2,009.70
AIK-00012
Core i711370H32 GBRTX A2000SSD M.2 NVMe2048 GB £3,207.06
AIC-00010
Core i711370H32 GBRTX A2000SSD M.2 NVMe1024 GB £3,380.99
AIC-00037
Core i711370H32 GBRTX A2000SSD M.2 NVMe1024 GB £3,528.30
Laptop Lenovo ThinkPad L13 Yoga Gen 3 AMD
  • display 13.3 ", 1920x1200 (16:10)
  • CPU AMD, Ryzen 5 / Ryzen 7
  • GPU Vega 7 / Vega 8
  • RAM 8 / 16 GB
  • storage 256 / 512 GB
  • weight 1.31 kg
Lenovo ThinkPad L13 Yoga Gen 3 AMD
display 13.3 ", 1920x1200 (16:10), CPU AMD, Ryzen 5 / Ryzen 7, GPU Vega 7 / Vega 8, RAM 8 / 16 GB, storage 256 / 512 GB, weight 1.31 kg
21BB001XUK
Ryzen 5PRO 5675U8 GBVega 7SSD M.2 NVMe256 GB £1,163.21
21BB0026UK
Ryzen 7PRO 5875U16 GBVega 8SSD M.2 NVMe512 GB £1,390.44
Laptop Asus Zenbook 14 OLED UX3402ZA
  • display 14 ", 2880x1800 (16:10)
  • CPU Intel, Core i5
  • GPU Iris Xe Graphics G7 80EUs
  • RAM 16 GB
  • storage 512 GB
  • weight 1.39 kg
Asus Zenbook 14 OLED UX3402ZA
display 14 ", 2880x1800 (16:10), CPU Intel, Core i5, GPU Iris Xe Graphics G7 80EUs, RAM 16 GB, storage 512 GB, weight 1.39 kg
KM020W
Core i51240P16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £1,045.99
Laptop Samsung Galaxy Book3 Pro 360
  • display 16 ", 2880x1800 (16:10)
  • CPU Intel, Core i5 / Core i7
  • GPU Iris Xe Graphics G7 80EUs / Iris Xe Graphics G7 96EUs
  • RAM 8 / 16 GB
  • storage 256 / 512 GB
  • weight 1.66 kg
Samsung Galaxy Book3 Pro 360
display 16 ", 2880x1800 (16:10), CPU Intel, Core i5 / Core i7, GPU Iris Xe Graphics G7 80EUs / Iris Xe Graphics G7 96EUs, RAM 8 / 16 GB, storage 256 / 512 GB, weight 1.66 kg
NP960QFG-KA1UK
Core i51340P8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe256 GB £999.99 .. £1,720.00 
NP964QFG-KA2UK
Core i71360P16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,199.00 .. £1,554.00 
Laptop Lenovo Legion 7 16ARHA7
  • display 16 ", 2560x1600 (16:10)
  • CPU AMD, Ryzen 7
  • GPU RX 6700M
  • RAM 16 GB
  • storage 512 GB
  • weight 2.53 kg
Lenovo Legion 7 16ARHA7
display 16 ", 2560x1600 (16:10), CPU AMD, Ryzen 7, GPU RX 6700M, RAM 16 GB, storage 512 GB, weight 2.53 kg
82UH0004UK
Ryzen 76800H16 GBRX 6700MSSD M.2 NVMe512 GB £1,273.99 .. £2,334.00 
Laptop HP EliteBook 830 G11
  • display 13.3 ", 1920x1200 (16:10)
  • CPU Intel, Core Ultra 5 / Core Ultra 7
  • GPU Graphics 4-Cores
  • RAM 16 / 32 GB
  • storage 256 - 1024 GB
  • weight 1.29 kg
HP EliteBook 830 G11
display 13.3 ", 1920x1200 (16:10), CPU Intel, Core Ultra 5 / Core Ultra 7, GPU Graphics 4-Cores, RAM 16 / 32 GB, storage 256 - 1024 GB, weight 1.29 kg
8A4T4EA new
Core Ultra 5125U16 GBGraphics 4-CoresSSD M.2 NVMe256 GB £1,139.99
8A4T5EA new
Core Ultra 7155U16 GBGraphics 4-CoresSSD M.2 NVMe512 GB £1,319.99
8A4T6EA new
Core Ultra 7155U32 GBGraphics 4-CoresSSD M.2 NVMe512 GB £1,499.99
9G0D2ET new
Core Ultra 5125U16 GBGraphics 4-CoresSSD M.2 NVMe512 GB  out of stock
9G0D3ET new
Core Ultra 5135U16 GBGraphics 4-CoresSSD M.2 NVMe512 GB  out of stock
9G0D4ET new
Core Ultra 7155U16 GBGraphics 4-CoresSSD M.2 NVMe512 GB  out of stock
9G0D7ET new
Core Ultra 7155U16 GBGraphics 4-CoresSSD M.2 NVMe512 GB  out of stock
9G0D6ET new
Core Ultra 7155U32 GBGraphics 4-CoresSSD M.2 NVMe1024 GB  out of stock
9G0D8ET new
Core Ultra 7155U32 GBGraphics 4-CoresSSD M.2 NVMe1024 GB  out of stock
9G0D5ET new
Core Ultra 7165U16 GBGraphics 4-CoresSSD M.2 NVMe512 GB  out of stock
Laptop Lenovo ThinkPad X13 Yoga Gen 4
  • display 13.3 ", 1920x1200 (16:10)
  • CPU Intel, Core i5 / Core i7
  • GPU Iris Xe Graphics G7 80EUs / Iris Xe Graphics G7 96EUs
  • RAM 16 GB
  • storage 256 / 512 GB
  • weight 1.21 kg
Lenovo ThinkPad X13 Yoga Gen 4
display 13.3 ", 1920x1200 (16:10), CPU Intel, Core i5 / Core i7, GPU Iris Xe Graphics G7 80EUs / Iris Xe Graphics G7 96EUs, RAM 16 GB, storage 256 / 512 GB, weight 1.21 kg
21F20011UK
Core i51335U16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe256 GB £1,180.00 .. £2,395.00 
21F2001EUK
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,599.97 .. £2,619.00 
Laptop Asus ROG Strix G16 (2023) G614JZ
  • display 16 ", 1920x1200 (16:10)
  • CPU Intel, Core i7
  • GPU RTX 4080
  • RAM 16 GB
  • storage 1024 GB
  • weight 2.5 kg
Asus ROG Strix G16 2023 G614JZ
display 16 ", 1920x1200 (16:10), CPU Intel, Core i7, GPU RTX 4080, RAM 16 GB, storage 1024 GB, weight 2.5 kg
N3007W
Core i713650HX16 GBRTX 4080SSD M.2 NVMe1024 GB £1,754.51 .. £1,819.00 
Laptop Dell XPS 15 9530
  • display 15.6 ", 1920x1200 (16:10)
  • CPU Intel, Core i7
  • GPU A370M
  • RAM 16 GB
  • storage 512 GB
  • weight 1.96 kg
Dell XPS 15 9530
display 15.6 ", 1920x1200 (16:10), CPU Intel, Core i7, GPU A370M, RAM 16 GB, storage 512 GB, weight 1.96 kg
‎X-7761SLV-PGB
Core i713700H16 GBA370MSSD M.2 NVMe512 GB £1,899.00
Laptop Samsung Galaxy Book4 Pro 14
  • display 14 ", 2880x1800 (16:10)
  • CPU Intel, Core Ultra 5 / Core Ultra 7
  • GPU Arc 7-Cores / Arc 8-Cores
  • RAM 16 / 32 GB
  • storage 256 / 512 GB
  • weight 1.23 kg
Samsung Galaxy Book4 Pro 14
display 14 ", 2880x1800 (16:10), CPU Intel, Core Ultra 5 / Core Ultra 7, GPU Arc 7-Cores / Arc 8-Cores, RAM 16 / 32 GB, storage 256 / 512 GB, weight 1.23 kg
NP944XGK-KG5UK new
Core Ultra 5125H16 GBArc 7-CoresSSD M.2 NVMe256 GB £1,464.12 .. £1,517.00 
NP944XGK-KG4UK new
Core Ultra 5125H16 GBArc 7-CoresSSD M.2 NVMe512 GB £1,565.89 .. £2,557.00 
NP944XGK-KG3UK new
Core Ultra 7155H16 GBArc 8-CoresSSD M.2 NVMe256 GB £1,583.98 .. £2,583.00 
NP944XGK-KG2UK new
Core Ultra 7155H16 GBArc 8-CoresSSD M.2 NVMe512 GB £1,679.98 .. £2,775.00 
NP944XGK-KG1UK new
Core Ultra 7155H32 GBArc 8-CoresSSD M.2 NVMe512 GB £1,889.66 .. £3,029.00 
Laptop Lenovo ThinkBook 13x ITG
  • display 13.3 ", 2560x1600 (16:10)
  • CPU Intel, Core i5
  • GPU Iris Xe Graphics G7 96EUs
  • RAM 16 GB
  • storage 512 GB
  • weight 1.13 kg
Lenovo ThinkBook 13x ITG
display 13.3 ", 2560x1600 (16:10), CPU Intel, Core i5, GPU Iris Xe Graphics G7 96EUs, RAM 16 GB, storage 512 GB, weight 1.13 kg
20WJ002MUK
Core i51130G716 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,219.01
Laptop HP Victus 16-r0000
  • display 16.1 ", 1920x1080 (16:9)
  • CPU Intel, Core i7
  • GPU RTX 4050 / RTX 4070
  • RAM 16 GB
  • storage 512 / 1024 GB
  • weight 2.3 kg
  • - / 45 %
HP Victus 16-r0000
display 16.1 ", 1920x1080 (16:9), CPU Intel, Core i7, GPU RTX 4050 / RTX 4070, RAM 16 GB, storage 512 / 1024 GB, weight 2.3 kg, - / 45 %
16-R0011NW
Core i713700H16 GBRTX 4070SSD M.2 NVMe1024 GB £1,172.06
 
sRGB ≥ 100%
Clear +1
Laptop Lenovo ThinkPad P1 Gen 6
  • display 16 ", 2560x1600 (16:10)
  • CPU Intel, Core i7 / Core i9
  • GPU RTX 2000 Ada - RTX A1000
  • RAM 16 / 32 GB
  • storage 512 / 1024 GB
  • weight 1.86 kg
Lenovo ThinkPad P1 Gen 6
display 16 ", 2560x1600 (16:10), CPU Intel, Core i7 / Core i9, GPU RTX 2000 Ada - RTX A1000, RAM 16 / 32 GB, storage 512 / 1024 GB, weight 1.86 kg
21FV0010SP
Core i713700H16 GBRTX 4060SSD M.2 NVMe512 GB £1,943.33 .. £2,754.00 
21FV0011UK
Core i713700H16 GBRTX A1000SSD M.2 NVMe512 GB £1,608.51 .. £2,449.00 
21FV000EUK
Core i713700H32 GBRTX 2000 AdaSSD M.2 NVMe1024 GB £2,050.00
21FV000JUK
Core i713800H32 GBRTX 2000 AdaSSD M.2 NVMe1024 GB £2,743.88 .. £2,920.00 
21FV000QUK
Core i713800H32 GBRTX 3500 AdaSSD M.2 NVMe1024 GB £3,748.05 .. £3,900.00 
21FV000MUK
Core i713800H32 GBRTX 4060SSD M.2 NVMe1024 GB £2,299.99 .. £2,986.00 
21FV000DUK
Core i913900H32 GBRTX 2000 AdaSSD M.2 NVMe1024 GB £2,783.98 .. £2,907.00 
Laptop Razer Blade 17 2022
  • display 17.3 ", 1920x1080 (16:9) - 3840x2160 (16:9)
  • CPU Intel, Core i7 / Core i9
  • GPU RTX 3060 - RTX 3080 Ti
  • RAM 16 / 32 GB
  • storage 1024 GB
  • weight 2.75 kg
Razer Blade 17 2022
display 17.3 ", 1920x1080 (16:9) - 3840x2160 (16:9), CPU Intel, Core i7 / Core i9, GPU RTX 3060 - RTX 3080 Ti, RAM 16 / 32 GB, storage 1024 GB, weight 2.75 kg
RZ..23EWA3-R3W1
Core i712800H16 GBRTX 3060SSD M.2 NVMe1024 GB £2,054.97 .. £3,806.00 
RZ..23PWC3-R3W1
Core i712800H32 GBRTX 3080 TiSSD M.2 NVMe1024 GB £1,549.99 .. £1,667.00 
 
sRGB ≥ 100%
Clear +4
Laptop Dell Latitude 13 5340
  • display 13.3 ", 1920x1080 (16:9)
  • CPU Intel, Core i5 / Core i7
  • GPU Iris Xe Graphics G7 80EUs / Iris Xe Graphics G7 96EUs
  • RAM 8 / 16 GB
  • storage 256 / 512 GB
  • weight 1.23 kg
  • - / 45 %
Dell Latitude 13 5340
from £649.97
display 13.3 ", 1920x1080 (16:9), CPU Intel, Core i5 / Core i7, GPU Iris Xe Graphics G7 80EUs / Iris Xe Graphics G7 96EUs, RAM 8 / 16 GB, storage 256 / 512 GB, weight 1.23 kg, - / 45 %
N017LEMEAVP
Core i71365U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,444.09
 
sRGB ≥ 100%
Clear +5
Laptop Lenovo ThinkPad P16 Gen 1
  • display 16 ", 1920x1200 (16:10) / 2560x1600 (16:10)
  • CPU Intel, Core i5 - Core i9
  • GPU RTX A1000 - RTX A3000
  • RAM 16 / 32 GB
  • storage 512 / 1024 GB
  • weight 2.95 kg
Lenovo ThinkPad P16 Gen 1
display 16 ", 1920x1200 (16:10) / 2560x1600 (16:10), CPU Intel, Core i5 - Core i9, GPU RTX A1000 - RTX A3000, RAM 16 / 32 GB, storage 512 / 1024 GB, weight 2.95 kg
21D6000XUK
Core i512600HX16 GBRTX A1000SSD M.2 NVMe512 GB £749.99 .. £1,849.00 
21D60014UK
Core i712800HX32 GBRTX A2000SSD M.2 NVMe1024 GB £2,695.21
21D6001GUK
Core i712850HX16 GBRTX A3000SSD M.2 NVMe512 GB £3,083.58
21D6003UUK
Core i912950HX16 GBRTX A2000SSD M.2 NVMe512 GB £2,482.41
Laptop HP Spectre x360 16-aa0000
  • display 16 ", 2560x1600 (16:10) / 2880x1800 (16:10)
  • CPU Intel, Core Ultra 7
  • GPU Arc 8-Cores / RTX 4050
  • RAM 16 GB
  • storage 1024 GB
  • weight 2 kg
HP Spectre x360 16-aa0000
display 16 ", 2560x1600 (16:10) / 2880x1800 (16:10), CPU Intel, Core Ultra 7, GPU Arc 8-Cores / RTX 4050, RAM 16 GB, storage 1024 GB, weight 2 kg
16-AA0075NW new
Core Ultra 7155H16 GBArc 8-CoresSSD M.2 NVMe1024 GB £1,389.39
 
sRGB ≥ 100%
Clear +1
Laptop Lenovo ThinkPad T16 Gen 1 (Intel)
  • display 16 ", 1920x1200 (16:10)
  • CPU Intel, Core i5 / Core i7
  • GPU Iris Xe Graphics G7 80EUs / Iris Xe Graphics G7 96EUs
  • RAM 8 / 16 GB
  • storage 256 / 512 GB
  • weight 1.65 kg
  • - / 45 %
Lenovo ThinkPad T16 Gen 1 (Intel)
display 16 ", 1920x1200 (16:10), CPU Intel, Core i5 / Core i7, GPU Iris Xe Graphics G7 80EUs / Iris Xe Graphics G7 96EUs, RAM 8 / 16 GB, storage 256 / 512 GB, weight 1.65 kg, - / 45 %
21BV0024UK
Core i71260P16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,132.69 .. £1,216.00 
 
sRGB ≥ 100%
Clear +2
Laptop Razer Blade 18 2023
  • display 18 ", 2560x1600 (16:10)
  • CPU Intel, Core i9
  • GPU RTX 4060 - RTX 4090
  • RAM 16 / 32 GB
  • storage 1024 / 2048 GB
  • weight 3.1 kg
Razer Blade 18 2023
display 18 ", 2560x1600 (16:10), CPU Intel, Core i9, GPU RTX 4060 - RTX 4090, RAM 16 / 32 GB, storage 1024 / 2048 GB, weight 3.1 kg
RZ..84RWH3-R3W1
Core i913950HX16 GBRTX 4060SSD M.2 NVMe1024 GB £1,848.97 .. £2,599.00 
RZ..84SWH3-R3W1
Core i913950HX32 GBRTX 4070SSD M.2 NVMe1024 GB £2,149.99 .. £2,894.00 
RZ..84TWH3-R3W1
Core i913950HX32 GBRTX 4080SSD M.2 NVMe1024 GB £2,849.99 .. £3,654.00 
RZ..484TWM-3R3W
Core i913950HX32 GBRTX 4080SSD M.2 NVMe1024 GB £3,536.48
RZ..84UWH4-R3W1
Core i913950HX32 GBRTX 4090SSD M.2 NVMe2048 GB £3,226.97 .. £4,008.00 
Laptop HP EliteBook 1040 G9
  • display 14 ", 1920x1200 (16:10)
  • CPU Intel, Core i7
  • GPU Iris Xe Graphics G7 96EUs
  • RAM 16 GB
  • storage 512 GB
  • weight 1.16 kg
HP EliteBook 1040 G9
display 14 ", 1920x1200 (16:10), CPU Intel, Core i7, GPU Iris Xe Graphics G7 96EUs, RAM 16 GB, storage 512 GB, weight 1.16 kg
5P6Q0EA
Core i71255U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £834.00
6F690EA
Core i71255U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,023.59
Laptop Lenovo ThinkBook 16p G2 ACH
  • display 16 ", 2560x1600 (16:10)
  • CPU AMD, Ryzen 7
  • GPU RTX 3060
  • RAM 16 GB
  • storage 512 GB
  • weight 1.99 kg
Lenovo ThinkBook 16p G2 ACH
display 16 ", 2560x1600 (16:10), CPU AMD, Ryzen 7, GPU RTX 3060, RAM 16 GB, storage 512 GB, weight 1.99 kg
20YM002UUK
Ryzen 75800H16 GBRTX 3060SSD M.2 NVMe512 GB £1,369.01
Laptop HP Elite x360 830 G11
  • display 13.3 ", 1920x1200 (16:10)
  • CPU Intel, Core Ultra 5 / Core Ultra 7
  • GPU Graphics 4-Cores
  • RAM 16 / 32 GB
  • storage 256 - 1024 GB
  • weight 1.31 kg
HP Elite x360 830 G11
display 13.3 ", 1920x1200 (16:10), CPU Intel, Core Ultra 5 / Core Ultra 7, GPU Graphics 4-Cores, RAM 16 / 32 GB, storage 256 - 1024 GB, weight 1.31 kg
8A4T2EA new
Core Ultra 5125U16 GBGraphics 4-CoresSSD M.2 NVMe256 GB £1,295.99
8A4T1EA new
Core Ultra 7155U16 GBGraphics 4-CoresSSD M.2 NVMe512 GB £1,499.99
8A4T3EA new
Core Ultra 7155U32 GBGraphics 4-CoresSSD M.2 NVMe1024 GB £1,859.99
9G0D9ET new
Core Ultra 5125U16 GBGraphics 4-CoresSSD M.2 NVMe512 GB  out of stock
9G0E0ET new
Core Ultra 5135U16 GBGraphics 4-CoresSSD M.2 NVMe512 GB  out of stock
9G0E1ET new
Core Ultra 7155U16 GBGraphics 4-CoresSSD M.2 NVMe512 GB  out of stock
9G0E3ET new
Core Ultra 7155U32 GBGraphics 4-CoresSSD M.2 NVMe1024 GB  out of stock
9G0E2ET new
Core Ultra 7165U16 GBGraphics 4-CoresSSD M.2 NVMe512 GB  out of stock
4 more item(s)
Filters
Price
from£ up to£ 
Brands
Device type
Features
Screen size
Screen resolution
Screen type
Screen surface
Refresh rate
Display features
CPU
CPU code name
RAM
Max. RAM
GPU
Dedicated GPU
Drive
Drive size
Weight
Inputs & Outputs
USB A
USB type C
Charging features
Network connection
Multimedia
Max. connected monitors
Extra features & security
Brightness
Colour gamut
CPU series
Processor cores
CPU frequency
RAM type
RAM frequency
RAM slots
Keyboard backlight colour
Operating system
Material
Colour
Release year
Clear parameters