• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

question about 'max resolution' spec

Easy Rhino

Linux Advocate
Staff member
Joined
Nov 13, 2006
Messages
15,436 (2.43/day)
Location
Mid-Atlantic
System Name Desktop
Processor i5 13600KF
Motherboard AsRock B760M Steel Legend Wifi
Cooling Noctua NH-U9S
Memory 4x 16 Gb Gskill S5 DDR5 @6000
Video Card(s) Gigabyte Gaming OC 6750 XT 12GB
Storage WD_BLACK 4TB SN850x
Display(s) Gigabye M32U
Case Corsair Carbide 400C
Audio Device(s) On Board
Power Supply EVGA Supernova 650 P2
Mouse MX Master 3s
Keyboard Logitech G915 Wireless Clicky
Software The Matrix
If a VGA says it can do a max res of 2560x1600 does that mean that it maxes out PER PORT? for instance, if a VGA has two dvi ports will the card do 2560x1600 per port?
 

[Ion]

WCG Team Assistant
Joined
Sep 15, 2009
Messages
13,391 (2.52/day)
Location
Raleigh, North Carolina, United States
System Name Niedersachsen / Ribe / Minsk
Processor i3 3240 / i7-3520M / 4x Opteron 6376 @ 2.86GHz
Motherboard BIOSTAR H61M / HP Q77 / Supermicro H8QG7
Cooling Stock / Stock / 4x 1U G34
Memory 1x8GB / 2x4GB / 4x4GB
Video Card(s) GTX260 / Intel HD 4000 / nVidia GT310
Storage 80GB Intel SSD / 256GB Intel SSD / 2x 60GB SSD (RAID1)
Display(s) Dell 3007 + HP 2245w / 12.1" 1366x768 / None
Case Antec NSK3480 / HP / Supermicro 1U
Audio Device(s) Onboard
Power Supply Enermax 500W / HP 130W / Supermicro Gold 1400W
Keyboard IBM Model M
Software Windows 7 (Niedersachsen/Ribe) / Linux Mint 17.2 (Minsk)
I should certainly think so. The GPU on the video card should be able to drive two ports at max spec.
 

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
17,232 (2.63/day)
If a VGA says it can do a max res of 2560x1600 does that mean that it maxes out PER PORT? for instance, if a VGA has two dvi ports will the card do 2560x1600 per port?

Nope. Not "Per Port". Depends on the the connector type. Some brands explicitly state which port is capable of which rsolution, but not all do. Also, refresh-rate possible at each res may vary.

2560x1600 is the perfect example, since it requires Dual-Link DVI. Many cards can only do this on a single port only, while others are single-link.
 
Joined
Nov 10, 2006
Messages
4,665 (0.73/day)
Location
Washington, US
System Name Rainbow
Processor Intel Core i7 8700k
Motherboard MSI MPG Z390M GAMING EDGE AC
Cooling Corsair H115i, 2x Noctua NF-A14 industrialPPC-3000 PWM
Memory G. Skill TridentZ RGB 4x8GB (F4-3600C16Q-32GTZR)
Video Card(s) ZOTAC GeForce RTX 3090 Trinity
Storage 2x Samsung 950 Pro 256GB | 2xHGST Deskstar 4TB 7.2K
Display(s) Samsung C27HG70
Case Xigmatek Aquila
Power Supply Seasonic 760W SS-760XP
Mouse Razer Deathadder 2013
Keyboard Corsair Vengeance K95
Software Windows 10 Pro
Benchmark Scores 4 trillion points in GmailMark, over 144 FPS 2K Facebook Scrolling (Extreme Quality preset)
I thought the memory needed for a frame buffer should be X resolution times Y resolution times color depth (24, typically). 2560x1600x24 comes out to ~12 MB though, so I think I'm forgetting something somewhere.

It's probably per port. The clock required for anything higher might invoke corruption.
 
Last edited:

Easy Rhino

Linux Advocate
Staff member
Joined
Nov 13, 2006
Messages
15,436 (2.43/day)
Location
Mid-Atlantic
System Name Desktop
Processor i5 13600KF
Motherboard AsRock B760M Steel Legend Wifi
Cooling Noctua NH-U9S
Memory 4x 16 Gb Gskill S5 DDR5 @6000
Video Card(s) Gigabyte Gaming OC 6750 XT 12GB
Storage WD_BLACK 4TB SN850x
Display(s) Gigabye M32U
Case Corsair Carbide 400C
Audio Device(s) On Board
Power Supply EVGA Supernova 650 P2
Mouse MX Master 3s
Keyboard Logitech G915 Wireless Clicky
Software The Matrix
Joined
Nov 10, 2006
Messages
4,665 (0.73/day)
Location
Washington, US
System Name Rainbow
Processor Intel Core i7 8700k
Motherboard MSI MPG Z390M GAMING EDGE AC
Cooling Corsair H115i, 2x Noctua NF-A14 industrialPPC-3000 PWM
Memory G. Skill TridentZ RGB 4x8GB (F4-3600C16Q-32GTZR)
Video Card(s) ZOTAC GeForce RTX 3090 Trinity
Storage 2x Samsung 950 Pro 256GB | 2xHGST Deskstar 4TB 7.2K
Display(s) Samsung C27HG70
Case Xigmatek Aquila
Power Supply Seasonic 760W SS-760XP
Mouse Razer Deathadder 2013
Keyboard Corsair Vengeance K95
Software Windows 10 Pro
Benchmark Scores 4 trillion points in GmailMark, over 144 FPS 2K Facebook Scrolling (Extreme Quality preset)

Easy Rhino

Linux Advocate
Staff member
Joined
Nov 13, 2006
Messages
15,436 (2.43/day)
Location
Mid-Atlantic
System Name Desktop
Processor i5 13600KF
Motherboard AsRock B760M Steel Legend Wifi
Cooling Noctua NH-U9S
Memory 4x 16 Gb Gskill S5 DDR5 @6000
Video Card(s) Gigabyte Gaming OC 6750 XT 12GB
Storage WD_BLACK 4TB SN850x
Display(s) Gigabye M32U
Case Corsair Carbide 400C
Audio Device(s) On Board
Power Supply EVGA Supernova 650 P2
Mouse MX Master 3s
Keyboard Logitech G915 Wireless Clicky
Software The Matrix
Depends. What do you need it to do?

it needs to power 2x 1920x1080 displays using DVI.

mainly for sys admin stuff and programming. no gaming.
 

[Ion]

WCG Team Assistant
Joined
Sep 15, 2009
Messages
13,391 (2.52/day)
Location
Raleigh, North Carolina, United States
System Name Niedersachsen / Ribe / Minsk
Processor i3 3240 / i7-3520M / 4x Opteron 6376 @ 2.86GHz
Motherboard BIOSTAR H61M / HP Q77 / Supermicro H8QG7
Cooling Stock / Stock / 4x 1U G34
Memory 1x8GB / 2x4GB / 4x4GB
Video Card(s) GTX260 / Intel HD 4000 / nVidia GT310
Storage 80GB Intel SSD / 256GB Intel SSD / 2x 60GB SSD (RAID1)
Display(s) Dell 3007 + HP 2245w / 12.1" 1366x768 / None
Case Antec NSK3480 / HP / Supermicro 1U
Audio Device(s) Onboard
Power Supply Enermax 500W / HP 130W / Supermicro Gold 1400W
Keyboard IBM Model M
Software Windows 7 (Niedersachsen/Ribe) / Linux Mint 17.2 (Minsk)
it needs to power 2x 1920x1080 displays using DVI.

mainly for sys admin stuff and programming. no gaming.

Easy--I can't think of any modern card that won't do 2x1080p :)
 
Joined
Jan 23, 2012
Messages
361 (0.08/day)
Location
South Africa
Processor Pentium II 400 @ 516MHz
Motherboard AOpen AX6BC EZ
Cooling Stock
Memory 192MB PC-133
Video Card(s) 2x Voodoo 12MB in SLI, S3 Trio64V+
Storage Maxtor 40GB
Display(s) ViewSonic E90
Audio Device(s) Sound Blaster 16
Software Windows 98 SE
I've done 2580x2048 on an old CRT monitor over VGA, it's not a problem :)
 
Joined
Jun 29, 2007
Messages
1,243 (0.20/day)
Location
Repentigny, QC, CANADA
System Name CTG Computer
Processor AMD Ryzen 7 5800x
Motherboard Asus Strix B550-F
Cooling Noctua NH-U14S
Memory 2x 16gb G.SKILL F4-3600C16D-32GTZN
Video Card(s) Gigabyte RX6800XT Gaming OC
Storage WD Black SN850 1TB
Display(s) MAG274QRF-QD | Asus vg248qe
Case Fractal Meshify 2
Audio Device(s) Creative SoundBlasterx G6
Power Supply eVGA SuperNova 750w G2
Mouse Logitech G pro Wireless
Keyboard Corsair Strafe RGB MK2
Software Windows 10 Pro x64
It is per port. A card that support dual-screen will support max resolution, but it depends of ports. Some ports will do a max resolution while another will support higher.
 
Joined
Nov 10, 2006
Messages
4,665 (0.73/day)
Location
Washington, US
System Name Rainbow
Processor Intel Core i7 8700k
Motherboard MSI MPG Z390M GAMING EDGE AC
Cooling Corsair H115i, 2x Noctua NF-A14 industrialPPC-3000 PWM
Memory G. Skill TridentZ RGB 4x8GB (F4-3600C16Q-32GTZR)
Video Card(s) ZOTAC GeForce RTX 3090 Trinity
Storage 2x Samsung 950 Pro 256GB | 2xHGST Deskstar 4TB 7.2K
Display(s) Samsung C27HG70
Case Xigmatek Aquila
Power Supply Seasonic 760W SS-760XP
Mouse Razer Deathadder 2013
Keyboard Corsair Vengeance K95
Software Windows 10 Pro
Benchmark Scores 4 trillion points in GmailMark, over 144 FPS 2K Facebook Scrolling (Extreme Quality preset)
Joined
Jan 22, 2013
Messages
478 (0.12/day)
System Name Desktop
Processor i5 3570k
Motherboard Asrock Z77
Cooling Corsair H60
Memory G Skill 8gb 1600 mhz X 2
Video Card(s) Sapphire Radeon 7850 X 2
Storage 1 TB Velociraptor, 240GB 840 Samsung
Display(s) 27" Samsung LED X 2
Case Thermaltake V9
Power Supply Seasonic 620 W, CX600M on stand by
Software Win 8.1 64
Benchmark Scores Benches are silly
If a VGA says it can do a max res of 2560x1600 does that mean that it maxes out PER PORT? for instance, if a VGA has two dvi ports will the card do 2560x1600 per port?

I think it is per port. Actually, I'm sure it is per port.

Used to have this SAPPHIRE 100283FLEX Radeon HD 5770 FleX 1GB 128-b...
eyefinity card. I was running 3 screens. 2 1080p and 1 1200p with no problems.

I used hdmi and dvi->vga conversion connector.
 

qubit

Overclocked quantum bit
Joined
Dec 6, 2007
Messages
17,866 (3.00/day)
Location
Quantum Well UK
System Name Quantumville™
Processor Intel Core i7-2700K @ 4GHz
Motherboard Asus P8Z68-V PRO/GEN3
Cooling Noctua NH-D14
Memory 16GB (2 x 8GB Corsair Vengeance Black DDR3 PC3-12800 C9 1600MHz)
Video Card(s) MSI RTX 2080 SUPER Gaming X Trio
Storage Samsung 850 Pro 256GB | WD Black 4TB | WD Blue 6TB
Display(s) ASUS ROG Strix XG27UQR (4K, 144Hz, G-SYNC compatible) | Asus MG28UQ (4K, 60Hz, FreeSync compatible)
Case Cooler Master HAF 922
Audio Device(s) Creative Sound Blaster X-Fi Fatal1ty PCIe
Power Supply Corsair AX1600i
Mouse Microsoft Intellimouse Pro - Black Shadow
Keyboard Yes
Software Windows 10 Pro 64-bit
I've done 2580x2048 on an old CRT monitor over VGA, it's not a problem :)

That must have looked amazing. :cool: I'd love to see it for myself.
 
Joined
Jan 22, 2013
Messages
478 (0.12/day)
System Name Desktop
Processor i5 3570k
Motherboard Asrock Z77
Cooling Corsair H60
Memory G Skill 8gb 1600 mhz X 2
Video Card(s) Sapphire Radeon 7850 X 2
Storage 1 TB Velociraptor, 240GB 840 Samsung
Display(s) 27" Samsung LED X 2
Case Thermaltake V9
Power Supply Seasonic 620 W, CX600M on stand by
Software Win 8.1 64
Benchmark Scores Benches are silly
That must have looked amazing. :cool: I'd love to see it for myself.

I'd love to see it too. That monitor must weigh 50+ lbs

I remember my old 36" tube TV was like 150 lbs.
 
Top