Newegg[newegg.com] has 32GB (2 x 16GB) G.Skill Ripjaws S5 Series 288-Pin DDR5 6000 CL30 PC Desktop Memory RAM (Black) on sale for $127.99. Shipping is free.
Model: G.SKILL Ripjaws S5 Series 32GB (2 x 16GB) 288-Pin PC RAM DDR5 6000 Intel XMP 3.0 Desktop Memory Model
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It entirely depends on your platform. I'll answer from the perspective of AMD
The "Sweet Spot" confirmed by AMD themselves is 6000mhz, DDR obviously means Double Data Rate, so it's 3000mhz effective, which is a perfect match for the new Ryzen 7000 CPU infinity fabric clock. Any slower or faster and you have to OC the CPU side or there is a delay to timing mismatch.
As a general rule by the way, if the MHZ compared to CAS latency is the same ratio, it's the exact same timing in Nanoseconds for Memory Response.
RL = CL *2000 / DR, so your Ram Latency to respond to a CPU command is ALWAYS CAS latency * 2000 / Data Rate (the DDR speed), so both 6000 CAS 30 and 6400 CAS 32 have the same latency in nanoseconds of 10 (if you noticed the CAS latency is exactly half of the first 2 digits of the speed in both RAM sets (60/30 and 64/32).
The faster RAM gets, the more CAS latency there is by default. You will start to pay exponentially more to combine higher speed with lower CAS, because that decreases nanosecond delay. (E.g. 7000 CAS 34 would be 9.7 Nanoseconds vs 10)
Thing is, some applications prefer faster speed (DR), some prefer faster CAS latency (CL), but ALL programs benefit from overall Ram Latency (RL).
TLR - Easiest way to get fast memory for AMD is to get the lowest CAS you can find while only looking for DDR5 6000 (DR) to match the CPU's Infinity Fabric Clock and also use the lowest CAS to lower the RAM Latency to CPU inputs
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Got a question for you guys, which would be better, the one posted in the OP or G.Skill RipJaws S5 Series (Intel XMP) 32GB (2 × 16GB) 288-Pin
SDRAM DDR5 6400 CL32-39-39-102
Got a question for you guys, which would be better, the one posted in the OP or G.Skill RipJaws S5 Series (Intel XMP) 32GB (2 × 16GB) 288-Pin
SDRAM DDR5 6400 CL32-39-39-102
Basically 6000 CL30 vs. 6400 CL32
I had this debate w/ a Microcenter employee recently. Guy essentially said 6400 cl32 is pretty unstable on EXPO, but if you were tweaking yourself in bios, could be done to get same timings as 6000 ram. I just got the 6000 kit so if any of my timings were off, I just revert back to EXPO.
Our community has rated this post as helpful. If you agree, why not thank OliveKestrel655
03-17-2023 at 06:44 AM.
Quote
from Doug5421
:
I had this debate w/ a Microcenter employee recently. Guy essentially said 6400 cl32 is pretty unstable on EXPO, but if you were tweaking yourself in bios, could be done to get same timings as 6000 ram. I just got the 6000 kit so if any of my timings were off, I just revert back to EXPO.
It entirely depends on your platform. I'll answer from the perspective of AMD
The "Sweet Spot" confirmed by AMD themselves is 6000mhz, DDR obviously means Double Data Rate, so it's 3000mhz effective, which is a perfect match for the new Ryzen 7000 CPU infinity fabric clock. Any slower or faster and you have to OC the CPU side or there is a delay to timing mismatch.
As a general rule by the way, if the MHZ compared to CAS latency is the same ratio, it's the exact same timing in Nanoseconds for Memory Response.
RL = CL *2000 / DR, so your Ram Latency to respond to a CPU command is ALWAYS CAS latency * 2000 / Data Rate (the DDR speed), so both 6000 CAS 30 and 6400 CAS 32 have the same latency in nanoseconds of 10 (if you noticed the CAS latency is exactly half of the first 2 digits of the speed in both RAM sets (60/30 and 64/32).
The faster RAM gets, the more CAS latency there is by default. You will start to pay exponentially more to combine higher speed with lower CAS, because that decreases nanosecond delay. (E.g. 7000 CAS 34 would be 9.7 Nanoseconds vs 10)
Thing is, some applications prefer faster speed (DR), some prefer faster CAS latency (CL), but ALL programs benefit from overall Ram Latency (RL).
TLR - Easiest way to get fast memory for AMD is to get the lowest CAS you can find while only looking for DDR5 6000 (DR) to match the CPU's Infinity Fabric Clock and also use the lowest CAS to lower the RAM Latency to CPU inputs
It entirely depends on your platform. I'll answer from the perspective of AMD
The "Sweet Spot" confirmed by AMD themselves is 6000mhz, DDR obviously means Double Data Rate, so it's 3000mhz effective, which is a perfect match for the new Ryzen 7000 CPU infinity fabric clock. Any slower or faster and you have to OC the CPU side or there is a delay to timing mismatch.
As a general rule by the way, if the MHZ compared to CAS latency is the same ratio, it's the exact same timing in Nanoseconds for Memory Response.
RL = CL *2000 / DR, so your Ram Latency to respond to a CPU command is ALWAYS CAS latency * 2000 / Data Rate (the DDR speed), so both 6000 CAS 30 and 6400 CAS 32 have the same latency in nanoseconds of 10 (if you noticed the CAS latency is exactly half of the first 2 digits of the speed in both RAM sets (60/30 and 64/32).
The faster RAM gets, the more CAS latency there is by default. You will start to pay exponentially more to combine higher speed with lower CAS, because that decreases nanosecond delay. (E.g. 7000 CAS 34 would be 9.7 Nanoseconds vs 10)
Thing is, some applications prefer faster speed (DR), some prefer faster CAS latency (CL), but ALL programs benefit from overall Ram Latency (RL).
TLR - Easiest way to get fast memory for AMD is to get the lowest CAS you can find while only looking for DDR5 6000 (DR) to match the CPU's Infinity Fabric Clock and also use the lowest CAS to lower the RAM Latency to CPU inputs
Got a question for you guys, which would be better, the one posted in the OP or G.Skill RipJaws S5 Series (Intel XMP) 32GB (2 × 16GB) 288-Pin
SDRAM DDR5 6400 CL32-39-39-102
Basically 6000 CL30 vs. 6400 CL32
These kits are both 10ns first word latency. Just depends if you want the best silicone currently or not.
For 99.9% of people, it doesn't matter since they don't overclock.
Also the poster above said, don't get anything faster than 6000 for AMD chips.
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The "Sweet Spot" confirmed by AMD themselves is 6000mhz, DDR obviously means Double Data Rate, so it's 3000mhz effective, which is a perfect match for the new Ryzen 7000 CPU infinity fabric clock. Any slower or faster and you have to OC the CPU side or there is a delay to timing mismatch.
As a general rule by the way, if the MHZ compared to CAS latency is the same ratio, it's the exact same timing in Nanoseconds for Memory Response.
RL = CL *2000 / DR, so your Ram Latency to respond to a CPU command is ALWAYS CAS latency * 2000 / Data Rate (the DDR speed), so both 6000 CAS 30 and 6400 CAS 32 have the same latency in nanoseconds of 10 (if you noticed the CAS latency is exactly half of the first 2 digits of the speed in both RAM sets (60/30 and 64/32).
The faster RAM gets, the more CAS latency there is by default. You will start to pay exponentially more to combine higher speed with lower CAS, because that decreases nanosecond delay. (E.g. 7000 CAS 34 would be 9.7 Nanoseconds vs 10)
Thing is, some applications prefer faster speed (DR), some prefer faster CAS latency (CL), but ALL programs benefit from overall Ram Latency (RL).
TLR - Easiest way to get fast memory for AMD is to get the lowest CAS you can find while only looking for DDR5 6000 (DR) to match the CPU's Infinity Fabric Clock and also use the lowest CAS to lower the RAM Latency to CPU inputs
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https://www.newegg.com/g-skill-32...6820374451
https://www.newegg.com/g-skill-32...6820374422
https://www.newegg.com/g-skill-32...6820374451 [newegg.com]
SDRAM DDR5 6400 CL32-39-39-102
Basically 6000 CL30 vs. 6400 CL32
Sign up for a Slickdeals account to remove this ad.
SDRAM DDR5 6400 CL32-39-39-102
Basically 6000 CL30 vs. 6400 CL32
I had this debate w/ a Microcenter employee recently. Guy essentially said 6400 cl32 is pretty unstable on EXPO, but if you were tweaking yourself in bios, could be done to get same timings as 6000 ram. I just got the 6000 kit so if any of my timings were off, I just revert back to EXPO.
Our community has rated this post as helpful. If you agree, why not thank OliveKestrel655
The "Sweet Spot" confirmed by AMD themselves is 6000mhz, DDR obviously means Double Data Rate, so it's 3000mhz effective, which is a perfect match for the new Ryzen 7000 CPU infinity fabric clock. Any slower or faster and you have to OC the CPU side or there is a delay to timing mismatch.
As a general rule by the way, if the MHZ compared to CAS latency is the same ratio, it's the exact same timing in Nanoseconds for Memory Response.
RL = CL *2000 / DR, so your Ram Latency to respond to a CPU command is ALWAYS CAS latency * 2000 / Data Rate (the DDR speed), so both 6000 CAS 30 and 6400 CAS 32 have the same latency in nanoseconds of 10 (if you noticed the CAS latency is exactly half of the first 2 digits of the speed in both RAM sets (60/30 and 64/32).
The faster RAM gets, the more CAS latency there is by default. You will start to pay exponentially more to combine higher speed with lower CAS, because that decreases nanosecond delay. (E.g. 7000 CAS 34 would be 9.7 Nanoseconds vs 10)
Thing is, some applications prefer faster speed (DR), some prefer faster CAS latency (CL), but ALL programs benefit from overall Ram Latency (RL).
TLR - Easiest way to get fast memory for AMD is to get the lowest CAS you can find while only looking for DDR5 6000 (DR) to match the CPU's Infinity Fabric Clock and also use the lowest CAS to lower the RAM Latency to CPU inputs
The "Sweet Spot" confirmed by AMD themselves is 6000mhz, DDR obviously means Double Data Rate, so it's 3000mhz effective, which is a perfect match for the new Ryzen 7000 CPU infinity fabric clock. Any slower or faster and you have to OC the CPU side or there is a delay to timing mismatch.
As a general rule by the way, if the MHZ compared to CAS latency is the same ratio, it's the exact same timing in Nanoseconds for Memory Response.
RL = CL *2000 / DR, so your Ram Latency to respond to a CPU command is ALWAYS CAS latency * 2000 / Data Rate (the DDR speed), so both 6000 CAS 30 and 6400 CAS 32 have the same latency in nanoseconds of 10 (if you noticed the CAS latency is exactly half of the first 2 digits of the speed in both RAM sets (60/30 and 64/32).
The faster RAM gets, the more CAS latency there is by default. You will start to pay exponentially more to combine higher speed with lower CAS, because that decreases nanosecond delay. (E.g. 7000 CAS 34 would be 9.7 Nanoseconds vs 10)
Thing is, some applications prefer faster speed (DR), some prefer faster CAS latency (CL), but ALL programs benefit from overall Ram Latency (RL).
TLR - Easiest way to get fast memory for AMD is to get the lowest CAS you can find while only looking for DDR5 6000 (DR) to match the CPU's Infinity Fabric Clock and also use the lowest CAS to lower the RAM Latency to CPU inputs
Awesome summary!
SDRAM DDR5 6400 CL32-39-39-102
Basically 6000 CL30 vs. 6400 CL32
These kits are both 10ns first word latency. Just depends if you want the best silicone currently or not.
For 99.9% of people, it doesn't matter since they don't overclock.
Also the poster above said, don't get anything faster than 6000 for AMD chips.