Please suggest the best DDR3 RAM

[geeskill]

Hello there,

I want to install 32GB G-SKILL DDR3 RAM in my laptop. Please suggest the best compatible G-SKILL DDR3 RAM.
I was thinking which among these will be best for my laptop? There are 4 DIMM slots available for 8GB each.

F3-1333C9Q-32GRSL
Ripjaws DDR3 SO-DIMM
DDR3L-1333 CL9-9-9 1.35V
32GB (4x8GB)

OR

F3-1600C9Q-32GRSL
Ripjaws DDR3 SO-DIMM
DDR3L-1600 CL9-9-9 1.35V
32GB (4x8GB)


Following are some of the laptop details which would give you an idea:

Memory SPD
-------------------------------------------------------------------------

DIMM # 1
SMBus address 0x52
Memory type DDR3
Module format SO-DIMM
Module Manufacturer(ID) SK Hynix (AD00000000000000000000000000)
SDRAM Manufacturer (ID) SK Hynix (AD00000000000000000000000000)
Size 4096 MBytes
Max bandwidth PC3-12800 (800 MHz)
Part number HMT451S6AFR8C-PB
Serial number 8E42DFBF
Manufacturing date Week 09/Year 13
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP no
AMP no
EXPO no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 5.0-5-5-14-19 @ 380 MHz
JEDEC #2 6.0-6-6-16-22 @ 457 MHz
JEDEC #3 7.0-7-7-19-26 @ 533 MHz
JEDEC #4 8.0-8-8-22-30 @ 609 MHz
JEDEC #5 9.0-9-9-24-33 @ 685 MHz
JEDEC #6 10.0-10-10-27-37 @ 761 MHz
JEDEC #7 11.0-11-11-28-39 @ 800 MHz

DIMM # 2
SMBus address 0x53
Memory type DDR3
Module format SO-DIMM
Module Manufacturer(ID) SK Hynix (AD00000000000000000000000000)
SDRAM Manufacturer (ID) SK Hynix (AD00000000000000000000000000)
Size 4096 MBytes
Max bandwidth PC3-12800 (800 MHz)
Part number HMT451S6AFR8C-PB
Serial number 9AE7AC25
Manufacturing date Week 09/Year 13
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP no
AMP no
EXPO no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 5.0-5-5-14-19 @ 380 MHz
JEDEC #2 6.0-6-6-16-22 @ 457 MHz
JEDEC #3 7.0-7-7-19-26 @ 533 MHz
JEDEC #4 8.0-8-8-22-30 @ 609 MHz
JEDEC #5 9.0-9-9-24-33 @ 685 MHz
JEDEC #6 10.0-10-10-27-37 @ 761 MHz
JEDEC #7 11.0-11-11-28-39 @ 800 MHz



Processors Information
-------------------------------------------------------------------------

Socket 1 ID = 0
Number of cores 4 (max 4)
Number of threads 8 (max 8)
Manufacturer GenuineIntel
Name Intel Core i7 3740QM
Codename Ivy Bridge
Specification Intel(R) Core(TM) i7-3740QM CPU @ 2.70GHz
Package (platform ID) Socket 988B rPGA (0x4)
CPUID 6.A.9
Extended CPUID 6.3A
Core Stepping E1/L1
Technology 22 nm
TDP Limit 45.0 Watts
Tjmax 105.0 °C
Core Speed 1198.0 MHz
Multiplier x Bus Speed 12.0 x 99.8 MHz
Base frequency (cores) 99.8 MHz
Base frequency (mem.) 99.8 MHz
Stock frequency 2700 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES, AVX
Microcode Revision 0x21
L1 Data cache 4 x 32 KB (8-way, 64-byte line)
L1 Instruction cache 4 x 32 KB (8-way, 64-byte line)
L2 cache 4 x 256 KB (8-way, 64-byte line)
L3 cache 6 MB (12-way, 64-byte line)
Max CPUID level 0000000Dh
Max CPUID ext. level 80000008h
FID/VID Control yes


Turbo Mode supported, enabled
Max non-turbo ratio 27x
Max turbo ratio 37x
Max efficiency ratio 12x
Min Power 36 Watts
O/C bins +4
Ratio 1 core 37x
Ratio 2 cores 36x
Ratio 3 cores 35x
Ratio 4 cores 35x
TDP Level 45.0 W @ 27x

Temperature 0 55 degC (131 degF) (Package)
Temperature 1 55 degC (131 degF) (Cores (Max))
Temperature 2 55 degC (131 degF) (Core #0)
Temperature 3 53 degC (127 degF) (Core #1)
Temperature 4 54 degC (129 degF) (Core #2)
Temperature 5 53 degC (127 degF) (Core #3)
Voltage 0 0.88 Volts (VID)
Power 00 10.08 W (Package)
Power 01 5.75 W (IA Cores)
Power 02 0.20 W (GT)
Power 03 4.13 W (Uncore)
Clock Speed 0 1198.00 MHz (Core #0)
Clock Speed 1 2296.17 MHz (Core #1)
Clock Speed 2 2296.17 MHz (Core #2)
Clock Speed 3 1198.00 MHz (Core #3)
Core 0 max ratio 37.00 (effective 23.00)
Core 1 max ratio 37.00 (effective 23.00)
Core 2 max ratio 37.00 (effective 23.00)
Core 3 max ratio 37.00 (effective 23.00)


Thank you.

[emissary42]

If they are both still available for you, then the F3-1600C9Q-32GRSL would be preferable, because of the higher frequency.

[geeskill]

Hello emissary42 , Thank you so much for your troubleshooting input. I had F3-1600C9D-16GRSL on one of my other laptops. And I installed these two modules with the existing Hynix (4Gb x 2 MODULES). So this is a total of 24Gb DDR3 in the system. Well, nothing significant in performance. I am unsure if mixing GSkill with other make Hynix would be causing this slowness. And could you please let me know if I go for a higher Frequency DDR3: F3-2133C11Q-32GRSL? The processor will automatically downclock to 1600Mhz. Or will it be worth going for F3-2133C11Q-32GRSL?
And it isn't easy to find F3-2133C11Q-32GRSL or F3-2133C11D-16GRSL, or F3-1866C10Q-32GRSL.
Please let me know your thoughts.
Thank you.

[emissary42]

Your CPU does not support higher memory ratios, so DDR3-1600 is optimal already. When mixing memory the motherboard chooses a common denominator from the supported frequency and timings. So if the timings differ, you tend to get the slower ones. With OEM modules like the Hynix ones above mixed in, that would be CL11(-11-11) instead of CL9(-9-9). The performance impact from the latency difference is measurable, but likely won't be noticeable in daily use.