F5F Stay Refreshed Power Users Overclocking Sapphire AMD HD 7750 1GDDR5 OC

Sapphire AMD HD 7750 1GDDR5 OC

Sapphire AMD HD 7750 1GDDR5 OC

I
InoueAlice
Senior Member
677
07-17-2025, 06:24 AM
#1
Hi, until now I've kept my GPU at stock voltage from 800/1125 to 865/1300 (probably VDDC 1035). I've read it's possible to go even higher, maybe up to 1145 or 1175, and possibly beyond. I think staying stable at 910/1350 with a +115 VDDC (1150) seems feasible. Temperatures were very good, only reaching around 55°C in CSGO. I'm wondering if the PCIe X16 1.0 will be enough, especially with about 20% more power available. I'm mainly doing light gaming like CSGO, but the CPU is a medium-high dual-core processor (the second one is for Dad and used for LAN).
I
InoueAlice
07-17-2025, 06:24 AM #1

Hi, until now I've kept my GPU at stock voltage from 800/1125 to 865/1300 (probably VDDC 1035). I've read it's possible to go even higher, maybe up to 1145 or 1175, and possibly beyond. I think staying stable at 910/1350 with a +115 VDDC (1150) seems feasible. Temperatures were very good, only reaching around 55°C in CSGO. I'm wondering if the PCIe X16 1.0 will be enough, especially with about 20% more power available. I'm mainly doing light gaming like CSGO, but the CPU is a medium-high dual-core processor (the second one is for Dad and used for LAN).

1
111carys111
Posting Freak
832
07-21-2025, 06:27 PM
#2
Mihalyk2000:
Old HP 0a64h motherboard with the newest driver, a noname 600w PSU, AMD Athlon x2 6000, 512-512-1024-2048 RAM (800-800-667-800) latest drivers, Windows 10...
You're all set! Keep going with 20% more. Good luck!
1
111carys111
07-21-2025, 06:27 PM #2

Mihalyk2000:
Old HP 0a64h motherboard with the newest driver, a noname 600w PSU, AMD Athlon x2 6000, 512-512-1024-2048 RAM (800-800-667-800) latest drivers, Windows 10...
You're all set! Keep going with 20% more. Good luck!

E
enderwing
Junior Member
5
07-26-2025, 01:46 PM
#3
This depends on your motherboard. Would you like to update your details?
E
enderwing
07-26-2025, 01:46 PM #3

This depends on your motherboard. Would you like to update your details?

C
crazyborg
Member
122
07-26-2025, 08:20 PM
#4
Old HP 0a64h motherboard running the newest drivers, a noname 600w power supply, AMD Athlon x2 6000 processor, and 512-512-1024-2048 RAM (800-800-667-800) with the latest Windows 10 updates...
C
crazyborg
07-26-2025, 08:20 PM #4

Old HP 0a64h motherboard running the newest drivers, a noname 600w power supply, AMD Athlon x2 6000 processor, and 512-512-1024-2048 RAM (800-800-667-800) with the latest Windows 10 updates...

A
amyeenhoorn
Member
121
07-30-2025, 09:58 PM
#5
Mihalyk2000:
Old HP 0a64h motherboard with the newest driver, a noname 600w PSU, AMD Athlon x2 6000, 512-512-1024-2048 RAM (800-800-667-800) latest drivers, Windows 10...
You're all set! Keep going with 20% more. Good luck!
A
amyeenhoorn
07-30-2025, 09:58 PM #5

Mihalyk2000:
Old HP 0a64h motherboard with the newest driver, a noname 600w PSU, AMD Athlon x2 6000, 512-512-1024-2048 RAM (800-800-667-800) latest drivers, Windows 10...
You're all set! Keep going with 20% more. Good luck!

G
GroovyMonster
Junior Member
25
07-31-2025, 01:50 AM
#6
Sure, keep it or make those 115 mv count!
G
GroovyMonster
07-31-2025, 01:50 AM #6

Sure, keep it or make those 115 mv count!

M
MattBruehl
Junior Member
14
08-06-2025, 12:48 AM
#7
Sooo, decide to stay or consider adding those 115 mv? I'd lower it to 90, but definitely include them.
M
MattBruehl
08-06-2025, 12:48 AM #7

Sooo, decide to stay or consider adding those 115 mv? I'd lower it to 90, but definitely include them.

T
Teksanity
Member
73
08-06-2025, 01:44 AM
#8
Max vddc i could reach 1145, but increasing it will reset to 1145. Currently I can handle up to 1030 core and 1350, likely with a ±5 MHz adjustment.

Stock: 800 - stock vddc:865 - 1160 vddc:1040 core
Stock: 1125 - stock vddc:1300 - 1160 vddc:1350 memory
T
Teksanity
08-06-2025, 01:44 AM #8

Max vddc i could reach 1145, but increasing it will reset to 1145. Currently I can handle up to 1030 core and 1350, likely with a ±5 MHz adjustment.

Stock: 800 - stock vddc:865 - 1160 vddc:1040 core
Stock: 1125 - stock vddc:1300 - 1160 vddc:1350 memory

M
Megaball111
Junior Member
3
08-06-2025, 03:17 AM
#9
Max vddc i could add was 1145, if I go higher it will reset to 1145, until now I can reach 1030 core and 1350, probably I will +- 5 mhz.
Stock:800 - stock vddc:865 - 1145 vddc:1030 core
Stock:1125 - stock vddc:1300 - 1145 vddc:1350 memory
That sounds fine, doesn't it? Good luck mate!
M
Megaball111
08-06-2025, 03:17 AM #9

Max vddc i could add was 1145, if I go higher it will reset to 1145, until now I can reach 1030 core and 1350, probably I will +- 5 mhz.
Stock:800 - stock vddc:865 - 1145 vddc:1030 core
Stock:1125 - stock vddc:1300 - 1145 vddc:1350 memory
That sounds fine, doesn't it? Good luck mate!