United Kingdom

Intel Evo laptops

 prices on 85 models  
Intel Evo
clear
Show
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
  • 15360 / 16798 score(s)
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, 15360 / 16798 score(s)
21F20011UK
Core i51335U16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe256 GB £1,180.00 .. £2,477.00 
21F2001EUK
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,629.97 .. £2,627.00 
Laptop Lenovo ThinkPad X13 Gen 4 Intel
  • 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 1.1 kg
  • 15360 / 16798 score(s)
Lenovo ThinkPad X13 Gen 4 Intel
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 1.1 kg, 15360 / 16798 score(s)
21EX0032UK
Core i51335U16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe256 GB £1,059.98 .. £2,312.00 
21EX0038GE
Core i51335U16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £2,102.46
21EX003WUK
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,409.99 .. £2,600.00 
Laptop Lenovo ThinkPad X1 2-in-1 Gen 9
  • display 14 ", 1920x1200 (16:10) / 2880x1800 (16:10)
  • Core Ultra 7
  • GPU Graphics 4-Cores
  • RAM 32 / 64 GB
  • storage 1024 / 2048 GB
  • weight 1.4 kg
  • 16140 / 16756 score(s)
Lenovo ThinkPad X1 2-in-1 Gen 9
display 14 ", 1920x1200 (16:10) / 2880x1800 (16:10), Core Ultra 7, GPU Graphics 4-Cores, RAM 32 / 64 GB, storage 1024 / 2048 GB, weight 1.4 kg, 16140 / 16756 score(s)
21KE003HRA new
Core Ultra 7155U32 GBGraphics 4-CoresSSD M.2 NVMe1024 GB  out of stock
21KE003LRA new
Core Ultra 7155U32 GBGraphics 4-CoresSSD M.2 NVMe2048 GB  out of stock
21KE003MRA new
Core Ultra 7165U64 GBGraphics 4-CoresSSD M.2 NVMe1024 GB  out of stock
Laptop HP EliteBook 830 G11
  • display 13.3 ", 1920x1200 (16:10)
  • Core Ultra 7
  • GPU Graphics 4-Cores
  • RAM 16 / 32 GB
  • storage 512 / 1024 GB
  • weight 1.29 kg
  • 16140 / 16756 score(s)
HP EliteBook 830 G11
display 13.3 ", 1920x1200 (16:10), Core Ultra 7, GPU Graphics 4-Cores, RAM 16 / 32 GB, storage 512 / 1024 GB, weight 1.29 kg, 16140 / 16756 score(s)
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 HP Elite x360 830 G10
  • 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 / 32 GB
  • storage 512 / 1024 GB
  • weight 1.3 kg
  • 15348 / 16647 score(s)
HP Elite x360 830 G10
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 / 32 GB, storage 512 / 1024 GB, weight 1.3 kg, 15348 / 16647 score(s)
96X78ET
Core i51335U16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £1,213.31 .. £1,607.00 
8A474EA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,439.99 .. £2,127.00 
8A475EA
Core i71355U32 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £1,859.99
818L6EA
Core i71355U32 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £3,855.52
 
Intel Evo
Clear +1
Laptop HP EliteBook 840 G11
  • display 14 ", 1920x1200 (16:10)
  • Core Ultra 7
  • GPU Graphics 4-Cores
  • RAM 16 GB
  • storage 512 GB
  • weight 1.41 kg
  • 16140 score(s)
HP EliteBook 840 G11
display 14 ", 1920x1200 (16:10), Core Ultra 7, GPU Graphics 4-Cores, RAM 16 GB, storage 512 GB, weight 1.41 kg, 16140 score(s)
9G0F0ET new
Core Ultra 7155U16 GBGraphics 4-CoresSSD M.2 NVMe512 GB  out of stock
Laptop Asus ExpertBook B9 OLED B9403CVA
  • display 14 ", 2880x1800 (16:10)
  • CPU Intel, Core i7
  • GPU Iris Xe Graphics G7 96EUs
  • RAM 16 GB
  • storage 1024 GB
  • weight 0.98 kg
  • 15789 score(s)
Asus ExpertBook B9 OLED B9403CVA
display 14 ", 2880x1800 (16:10), CPU Intel, Core i7, GPU Iris Xe Graphics G7 96EUs, RAM 16 GB, storage 1024 GB, weight 0.98 kg, 15789 score(s)
403CVA-KMI711X
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £1,322.28 .. £2,154.00 
Laptop Lenovo Yoga 7 14ACN6
  • display 14 ", 1920x1080 (16:9)
  • CPU AMD, Ryzen 5
  • GPU Vega 7
  • RAM 8 GB
  • storage 512 GB
  • weight 1.45 kg
  • 15592 score(s)
Lenovo Yoga 7 14ACN6
from £701.99
display 14 ", 1920x1080 (16:9), CPU AMD, Ryzen 5, GPU Vega 7, RAM 8 GB, storage 512 GB, weight 1.45 kg, 15592 score(s)
82N7006CPB
Ryzen 55600U8 GBVega 7SSD M.2 NVMe512 GB £701.99
Laptop HP Elite x360 1040 G10
  • display 14 ", 1920x1200 (16:10) / 2560x1600 (16:10)
  • CPU Intel, Core i7
  • GPU Iris Xe Graphics G7 96EUs
  • RAM 16 / 32 GB
  • storage 512 / 1024 GB
  • weight 1.33 kg
  • 15590 score(s)
HP Elite x360 1040 G10
display 14 ", 1920x1200 (16:10) / 2560x1600 (16:10), CPU Intel, Core i7, GPU Iris Xe Graphics G7 96EUs, RAM 16 / 32 GB, storage 512 / 1024 GB, weight 1.33 kg, 15590 score(s)
81A06EA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,578.00 .. £2,017.00 
96X33ET
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,614.00 .. £1,883.00 
8A489EA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £1,667.99 .. £1,940.00 
8A488EA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,787.99 .. £2,416.00 
8A490EA
Core i71355U32 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £1,890.00 .. £2,650.00 
Laptop HP EliteBook 1040 G10
  • display 14 ", 1920x1200 (16:10) / 2560x1600 (16:10)
  • CPU Intel, Core i7
  • GPU Iris Xe Graphics G7 96EUs
  • RAM 16 / 32 GB
  • storage 512 / 1024 GB
  • weight 1.19 kg
  • 15590 score(s)
HP EliteBook 1040 G10
display 14 ", 1920x1200 (16:10) / 2560x1600 (16:10), CPU Intel, Core i7, GPU Iris Xe Graphics G7 96EUs, RAM 16 / 32 GB, storage 512 / 1024 GB, weight 1.19 kg, 15590 score(s)
8A485EA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,415.99 .. £2,026.00 
8A486EA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £1,499.99
8A487EA
Core i71355U32 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £1,727.99 .. £1,974.00 
Laptop HP Dragonfly G4
  • display 13.5 ", 1920x1280 (3:2) / 3000x2000 (3:2)
  • CPU Intel, Core i7
  • GPU Iris Xe Graphics G7 96EUs
  • RAM 16 / 32 GB
  • storage 512 / 1024 GB
  • weight 0.99 kg
  • 15424 / 15544 score(s)
HP Dragonfly G4
display 13.5 ", 1920x1280 (3:2) / 3000x2000 (3:2), CPU Intel, Core i7, GPU Iris Xe Graphics G7 96EUs, RAM 16 / 32 GB, storage 512 / 1024 GB, weight 0.99 kg, 15424 / 15544 score(s)
8A491EA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,638.00 .. £1,679.00 
8A492EA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £1,763.99 .. £1,974.00 
818J3EA
Core i71355U32 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £2,054.41 .. £2,910.00 
8A493EA
Core i71365U32 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £2,171.99 .. £3,042.00 
Laptop HP EliteBook 830 G10
  • display 13.3 ", 1920x1200 (16:10)
  • CPU Intel, Core i7
  • GPU Iris Xe Graphics G7 96EUs
  • RAM 16 / 32 GB
  • storage 512 / 1024 GB
  • weight 1.26 kg
  • 15348 score(s)
HP EliteBook 830 G10
display 13.3 ", 1920x1200 (16:10), CPU Intel, Core i7, GPU Iris Xe Graphics G7 96EUs, RAM 16 / 32 GB, storage 512 / 1024 GB, weight 1.26 kg, 15348 score(s)
8A472EA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,283.99 .. £1,716.00 
8A473EA
Core i71355U32 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £1,559.99
Laptop Lenovo Yoga Book 9 13IRU8
  • display 13.3 ", 2880x1800 (16:10)
  • CPU Intel, Core i7
  • GPU Iris Xe Graphics G7 96EUs
  • RAM 16 GB
  • storage 1024 GB
  • weight 1.34 kg
  • 15343 score(s)
Lenovo Yoga Book 9 13IRU8
display 13.3 ", 2880x1800 (16:10), CPU Intel, Core i7, GPU Iris Xe Graphics G7 96EUs, RAM 16 GB, storage 1024 GB, weight 1.34 kg, 15343 score(s)
82YQ0033PB
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £2,620.99
Laptop HP Spectre x360 14-ef2000
  • display 13.5 ", 3000x2000 (3:2)
  • CPU Intel, Core i7
  • GPU Iris Xe Graphics G7 96EUs
  • RAM 32 GB
  • storage 2048 GB
  • weight 1.36 kg
  • 15337 score(s)
HP Spectre x360 14-ef2000
display 13.5 ", 3000x2000 (3:2), CPU Intel, Core i7, GPU Iris Xe Graphics G7 96EUs, RAM 32 GB, storage 2048 GB, weight 1.36 kg, 15337 score(s)
14-EF2017NA
Core i71355U32 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe2048 GB £1,799.00
14-EF2018NA
Core i71355U32 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe2048 GB £1,799.00
Laptop Lenovo ThinkPad T14s Gen 2 AMD
  • display 14 ", 1920x1080 (16:9)
  • CPU AMD, Ryzen 5
  • GPU Vega 7
  • RAM 16 GB
  • storage 512 GB
  • weight 1.36 kg
  • 15105 score(s)
Lenovo ThinkPad T14s Gen 2 AMD
display 14 ", 1920x1080 (16:9), CPU AMD, Ryzen 5, GPU Vega 7, RAM 16 GB, storage 512 GB, weight 1.36 kg, 15105 score(s)
20XF009AUK
Ryzen 5PRO 5650U16 GBVega 7SSD M.2 NVMe512 GB £379.99 .. £499.00 
Laptop HP Spectre x360 14-ef0000
  • display 13.5 ", 3000x2000 (3:2)
  • CPU Intel, Core i7
  • GPU Iris Xe Graphics G7 96EUs
  • RAM 16 GB
  • storage 1024 GB
  • weight 1.36 kg
  • 13939 score(s)
HP Spectre x360 14-ef0000
display 13.5 ", 3000x2000 (3:2), CPU Intel, Core i7, GPU Iris Xe Graphics G7 96EUs, RAM 16 GB, storage 1024 GB, weight 1.36 kg, 13939 score(s)
14-EF0000SA
Core i71255U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £1,699.99
Laptop Lenovo ThinkBook 13x G2 IAP
  • display 13.3 ", 2560x1600 (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 1.2 kg
  • 13459 / 13912 score(s)
Lenovo ThinkBook 13x G2 IAP
display 13.3 ", 2560x1600 (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 1.2 kg, 13459 / 13912 score(s)
21AT000JUK
Core i51235U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe256 GB £499.97 .. £687.00 
21AT000EUK
Core i71255U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £799.99 .. £1,300.00 
Laptop Lenovo ThinkPad X13 Yoga Gen 3
  • 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 1.2 kg
  • 13572 / 13783 score(s)
Lenovo ThinkPad X13 Yoga Gen 3
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 1.2 kg, 13572 / 13783 score(s)
21AW0032UK
Core i51235U16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe256 GB £949.99 .. £1,801.00 
21AW003BUK
Core i71255U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,818.18
Laptop Microsoft Surface Laptop 5 13.5 inch
  • display 13.5 ", 2256x1504 (3:2)
  • CPU Intel, Core i5 / Core i7
  • GPU Iris Xe Graphics G7 80EUs / Iris Xe Graphics G7 96EUs
  • RAM 8 - 32 GB
  • storage 256 - 1024 GB
  • weight 1.3 kg
  • 13109 - 13560 score(s)
Microsoft Surface Laptop 5 13.5 inch
display 13.5 ", 2256x1504 (3:2), CPU Intel, Core i5 / Core i7, GPU Iris Xe Graphics G7 80EUs / Iris Xe Graphics G7 96EUs, RAM 8 - 32 GB, storage 256 - 1024 GB, weight 1.3 kg, 13109 - 13560 score(s)
R1S-00029
Core i51235U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £849.97 .. £949.00 
R1S-00004
Core i51235U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £949.00 .. £1,317.00 
R1S-00053
Core i51235U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £949.00
R1S-00064
Core i51235U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £949.00 .. £1,317.00 
QZI-00012
Core i51235U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe256 GB £1,004.99
 59 more config(s)
Intel Evo
Clear +59
Laptop Microsoft Surface Laptop 5 15 inch
  • display 15 ", 2496x1664 (3:2)
  • CPU Intel, Core i7
  • GPU Iris Xe Graphics G7 96EUs
  • RAM 8 - 32 GB
  • storage 256 - 1024 GB
  • weight 1.55 kg
  • 13499 / 13553 score(s)
Microsoft Surface Laptop 5 15 inch
display 15 ", 2496x1664 (3:2), CPU Intel, Core i7, GPU Iris Xe Graphics G7 96EUs, RAM 8 - 32 GB, storage 256 - 1024 GB, weight 1.55 kg, 13499 / 13553 score(s)
RBY-00004
Core i71255U8 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe256 GB £898.97
RFB-00029
Core i71255U8 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,169.00
RFB-00037
Core i71255U8 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,708.99
RIP-00029
Core i71255U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,149.97
RBZ-00004
Core i71265U8 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe256 GB £1,106.46 .. £1,109.00 
 25 more config(s)
Intel Evo
Clear +25
Laptop Lenovo Yoga 7 14IAL7
  • display 14 ", 2240x1400 (16:10)
  • CPU Intel, Core i5
  • GPU Iris Xe Graphics G7 80EUs
  • RAM 8 GB
  • storage 512 GB
  • weight 1.45 kg
  • 13424 score(s)
Lenovo Yoga 7 14IAL7
display 14 ", 2240x1400 (16:10), CPU Intel, Core i5, GPU Iris Xe Graphics G7 80EUs, RAM 8 GB, storage 512 GB, weight 1.45 kg, 13424 score(s)
82QE00BAUK
Core i51235U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £949.97 .. £1,012.00 
Laptop HP ENVY x360 13-bf0000
  • display 13.3 ", 1920x1200 (16:10) / 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 512 GB
  • weight 1.38 kg
  • 10840 / 12421 score(s)
HP ENVY x360 13-bf0000
display 13.3 ", 1920x1200 (16:10) / 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 512 GB, weight 1.38 kg, 10840 / 12421 score(s)
13-BF0003NA
Core i51230U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £700.00 .. £1,032.00 
13-BF0046NA
Core i51230U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £700.00
13-BF0002NA
Core i71250U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,000.00 .. £1,261.00 
13-BF0045NA
Core i71250U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,000.00
13-BF0047NA
Core i71250U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,000.00
Laptop Lenovo Yoga 9 14ITL5
  • display 14 ", 3840x2160 (16:9)
  • CPU Intel, Core i7
  • GPU Iris Xe Graphics G7 96EUs
  • RAM 16 GB
  • storage 1024 GB
  • weight 1.4 kg
  • 11592 score(s)
Lenovo Yoga 9 14ITL5
0
0
0
1
display 14 ", 3840x2160 (16:9), CPU Intel, Core i7, GPU Iris Xe Graphics G7 96EUs, RAM 16 GB, storage 1024 GB, weight 1.4 kg, 11592 score(s)
82BG00FWUK
Core i71185G716 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £1,860.00
Laptop Lenovo Yoga Slim 7 Pro 14IHU5
  • display 14 ", 2240x1400 (16:10)
  • CPU Intel, Core i5
  • GPU Iris Xe Graphics G7 80EUs
  • RAM 8 GB
  • storage 1024 GB
  • weight 1.3 kg
  • 11209 score(s)
Lenovo Yoga Slim 7 Pro 14IHU5
from £700.99
display 14 ", 2240x1400 (16:10), CPU Intel, Core i5, GPU Iris Xe Graphics G7 80EUs, RAM 8 GB, storage 1024 GB, weight 1.3 kg, 11209 score(s)
82NC007NPB
Core i511300H8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe1024 GB £700.99
13 more item(s)
1 2 3 4
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
CPU series
Processor cores
CPU frequency
RAM
Max. RAM
RAM type
RAM frequency
RAM slots
GPU
Dedicated GPU
Max. connected monitors
Drive
Drive size
Weight
Inputs & Outputs
USB A
USB type C
Network connection
Multimedia
Release year
more
Extra features & security
Aspect ratio
Brightness
Colour gamut
Keyboard backlight colour
Operating system
Material
Colour
Clear parameters