T420 w/ Kingson Hyper-X 1866 - Works!

Hi All,

Just quickly to clarify that my brand new HyperX 1866 ram works at 1866Mhz on the T420. Like a charm.

Regards,

Harry

 

Interesting. What are the memory bandwidth, memory latency and video memory bandwidth according to SiSoftware Sandra.

John

 

Hi,

here go some results. apologies for the long post, but there you have it. Detailde to the max.

Regards,

Harry

Memory Benchmark

Benchmark Results
Aggregate Memory Performance : 23.59GB/s
Integer B/F AVX/128 Memory Bandwidth : 23.57GB/s
Float B/F AVX/128 Memory Bandwidth : 23.62GB/s
Results Interpretation : Higher scores are better.
Binary Numeral System (base 2) : 1GB(/s) = 1024MB(/s), 1MB(/s) = 1024kB(/s), 1kB(/s) = 1024 bytes(/s), etc.

Details:

Spoiler

Windows Experience Index
Current Chipset/Memory : 7.6
Results Interpretation : Higher scores are better.

Performance vs. Speed
Aggregate Memory Performance : 12.95MB/s/MHz
Integer B/F AVX/128 Memory Bandwidth : 12.93MB/s/MHz
Float B/F AVX/128 Memory Bandwidth : 12.96MB/s/MHz
Results Interpretation : Higher scores are better.

Performance vs. Power
Chipset(s)/Memory Power : 17.710W
Aggregate Memory Performance : 1364.09MB/s/W
Integer B/F AVX/128 Memory Bandwidth : 1362.62MB/s/W
Float B/F AVX/128 Memory Bandwidth : 1365.56MB/s/W
Results Interpretation : Higher scores are better.

Capacity vs. Power
Memory Capacity : 463MB/W
Results Interpretation : Higher scores are better.

Integer B/F AVX/128 Memory Bandwidth
Assignment : 23.7GB/s
Scaling : 23.81GB/s
Addition : 23.32GB/s
Triad : 23.43GB/s
Data Item Size : 16bytes
Buffering Used : Yes
Offset Displacement : Yes
Bandwidth Efficiency : 79.96%

Float B/F AVX/128 Memory Bandwidth
Assignment : 23.82GB/s
Scaling : 23.83GB/s
Addition : 23.43GB/s
Triad : 23.4GB/s
Data Item Size : 16bytes
Buffering Used : Yes
Offset Displacement : Yes
Bandwidth Efficiency : 80.06%

Performance Test Status
Result ID : Intel Core (Sandy Bridge) Mobile DRAM Controller (Integrated Graphics); 2x 4GB Kingston 9905428-048A00LF DDR3 SO-DIMM (1.87GHz 4% OC) PC3-14200 (11-11-11-32 5-43-14-7)
Computer : Lenovo 4180A32 ThinkPad T420
Platform Compliance : x64
Total Memory : 7.78GB
Memory Used by Test : 3.89GB
NUMA Support : No
SMP (Multi-Processor) Benchmark : No
Total Test Threads : 2
Multi-Core Test : Yes
SMT (Multi-Threaded) Benchmark : Yes
Processor Affinity : P0C0T0 P0C1T0
System Timer : 2.43MHz
Page Size : 4kB

Features
SSE Technology : Yes
SSE2 Technology : Yes
SSE3 Technology : Yes
Supplemental SSE3 Technology : Yes
SSE4.1 Technology : Yes
SSE4.2 Technology : Yes
AVX - Advanced Vector eXtensions : Yes
HTT - Hyper-Threading Technology : Yes

Chipset
Model : Lenovo Core (Sandy Bridge) Mobile DRAM Controller
OEM Device Name : Intel Core (Sandy Bridge) Mobile DRAM Controller
Revision : A10
Front Side Bus Speed : 100MHz
Width : 20-bit / 20-bit
Maximum Bus Bandwidth : 400MB/s

Logical/Chipset Memory Banks
Bank 0 : 4GB DDR3 SO-DIMM 11-11-11-32 5-43-14-7 1T
Bank 2 : 4GB DDR3 SO-DIMM 11-11-11-32 5-43-14-7 1T
Integrated in Chipset : Yes
Shared Memory : 66MB
Channels : 2
Memory Bus Speed : 2x 933MHz (1.87GHz)
Multiplier : 28/3x
Width : 64-bit
Integrated in Processor : Yes
Maximum Memory Bus Bandwidth : 29.16GB/s

Memory Module(s)
Memory Module : Kingston 9905428-048A00LF 4GB DDR3 SO-DIMM PC3-14200S DDR3-1778 (11-11-11-32 5-44-14-7)
Memory Module : Kingston 9905428-048A00LF 4GB DDR3 SO-DIMM PC3-14200S DDR3-1778 (11-11-11-32 5-44-14-7)

Memory Latency

Benchmark Results
Memory Latency : 76.7ns
Decimal Numeral System (base 10) : 1s = 1000ms, 1ms = 1000µs, 1µs = 1000ns, etc.
Speed Factor : 59.70
Results Interpretation : Lower scores are better.

Details:

Spoiler

Cache Information
Integrated Data Cache : 3clocks
L2 Cache : 10clocks
L3 Cache : 27clocks
Results Interpretation : Lower scores are better.

Windows Experience Index
Current Chipset/Memory : 7.6
Results Interpretation : Higher scores are better.

Performance vs. Speed
Memory Latency : 0.04ns/MHz
Results Interpretation : Lower scores are better.

Performance vs. Power
Chipset(s)/Memory Power : 17.710W
Memory Latency : 4.33ns/W
Results Interpretation : Lower scores are better.

Detailed Benchmark Results
1kB Range : 1.3ns / 3.2clocks
4kB Range : 1.3ns / 3.2clocks
16kB Range : 1.3ns / 3.2clocks
64kB Range : 3.9ns / 9.6clocks
256kB Range : 4.5ns / 11.2clocks
1MB Range : 10.7ns / 26.6clocks
4MB Range : 64.1ns / 159.7clocks
16MB Range : 73.5ns / 183.3clocks
64MB Range : 76.7ns / 191.1clocks

Performance Test Status
Result ID : Intel Core (Sandy Bridge) Mobile DRAM Controller (Integrated Graphics); 2x 4GB Kingston 9905428-048A00LF DDR3 SO-DIMM (1.87GHz 4% OC) PC3-14200 (11-11-11-32 5-43-14-7)
Computer : Lenovo 4180A32 ThinkPad T420
Platform Compliance : x64
System Timer : 2.43MHz
Memory Access : Random

Processor
Model : Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz
Speed : 3.19GHz
Peak Processing Performance (PPP) : 25.52GFLOPS
Adjusted Peak Performance (APP) : 7.66WG
Cores per Processor : 2 Unit(s)
Threads per Core : 2 Unit(s)
Type : Mobile, Dual-Core
Integrated Data Cache : 2x 32kB, Synchronous, Write-Thru, 8-way, 64 byte line size, 2 threads sharing
L2 Cache : 2x 256kB, ECC, Synchronous, ATC, 8-way, 64 byte line size, 2 threads sharing
L3 Cache : 3MB, ECC, Synchronous, ATC, 12-way, Exclusive, 64 byte line size, 16 threads sharing

Memory Controller
Integrated in Processor : Yes
Speed : 3.2GHz

Chipset
Model : Lenovo Core (Sandy Bridge) Mobile DRAM Controller
OEM Device Name : Intel Core (Sandy Bridge) Mobile DRAM Controller
Revision : A10
Front Side Bus Speed : 100MHz
Width : 20-bit / 20-bit
Maximum Bus Bandwidth : 400MB/s

Logical/Chipset Memory Banks
Bank 0 : 4GB DDR3 SO-DIMM 11-11-11-32 5-43-14-7 1T
Bank 2 : 4GB DDR3 SO-DIMM 11-11-11-32 5-43-14-7 1T
Integrated in Chipset : Yes
Shared Memory : 66MB
Channels : 2
Memory Bus Speed : 2x 933MHz (1.87GHz)
Multiplier : 28/3x
Width : 64-bit
Integrated in Processor : Yes
Maximum Memory Bus Bandwidth : 29.16GB/s

Video bandwidth

Benchmark Results
Aggregate Memory Performance : 9GB/s
Internal Memory Bandwidth : 19.74GB/s
Data Transfer Bandwidth : 4.15GB/s
Type : D3D11 SM5.0
Results Interpretation : Higher scores are better.
Binary Numeral System (base 2) : 1GB(/s) = 1024MB(/s), 1MB(/s) = 1024kB(/s), 1kB(/s) = 1024 bytes(/s), etc.

Details:

Spoiler

Detailed Benchmark Results
Internal Memory Bandwidth : 19.74GB/s
Bandwidth Efficiency : 67.71%
System to Device Bandwidth : 6.84GB/s
Device to System Bandwidth : 2.52GB/s
Results Interpretation : Higher scores are better.

Windows Experience Index
3D Graphics Performance : 6.4
Results Interpretation : Higher scores are better.

Performance vs. Speed
Aggregate Memory Performance : 4.97MB/s/MHz
Internal Memory Bandwidth : 10.83MB/s/MHz
Data Transfer Bandwidth : 2.28MB/s/MHz
Results Interpretation : Higher scores are better.

Performance vs. Power
Device(s) Power : 11.670W
Aggregate Memory Performance : 794.26MB/s/W
Internal Memory Bandwidth : 1732.31MB/s/W
Data Transfer Bandwidth : 364.18MB/s/W
Results Interpretation : Higher scores are better.

Capacity vs. Power
Memory Capacity : 5.48MB/W
Results Interpretation : Higher scores are better.

Performance Test Status
Result ID : Intel(R) HD Graphics Family (12 SM4.1 650MHz, 64MB DDR3 1.87GHz 128-bit, Integrated Graphics)
Computer : Lenovo 4180A32 ThinkPad T420
Platform Compliance : x64
Total Memory : 64MB
Memory Used by Test : 12.78MB
SMP (Multi-Processor) Benchmark : No
Total Test Threads : 1
System Timer : 2.43MHz

Video Adapter
Model : Intel(R) HD Graphics Family
Driver Version : 8.15.10.2418
Chipset : GT3000M
Speed : 650MHz
Shader Speed : 650MHz
Peak Processing Performance (PPP) : 15.6GFLOPS
Adjusted Peak Performance (APP) : 14WG
Unified Shaders : 12 Unit(s)
Raster Operation Units (ROP) : 1 Unit(s)
Texture Mapping Units (TMU) : 2 Unit(s)
Maximum Pixel Fillrate : 650MPix/s
Maximum Texture Fillrate : 1.3GTex/s

Logical/Chipset Memory Banks
Total Memory : 64MB DDR3
Memory Bus Speed : 2x 933MHz (1.87GHz)
Maximum Memory Bus Bandwidth : 29.16GB/s

 

Thanks, to compare with my results using 2 x 4GB 1333MHz RAM:

Memory Benchmark
Average 18 GB/s

Memory Latency
85.9 ns

Video bandwidth
8 GB/s

So you are getting a big boost to the raw memory bandwidth but a lesser boost to latency and the video memory bandwidth.

John

 

Errrr....don't you mean that he's getting a boost in all three departments?

Memory Benchmark
Results Interpretation : Higher scores are better.

Memory Latency
Results Interpretation : Lower scores are better.

Video bandwidth
Results Interpretation : Higher scores are better.

 

You might want to reread what you quoted. He DID state that there was a boost in all three aspects, just that one wasn't as large of a boost.

 

what about power usage? more speedy RAM = Less battery life? or it's doesn't play so big role?

 

Sorry, i did indeed misread what John Ratsey wrote. Apologies John

 

Hi,

Battery consuption is not really an issue with me. I have it pluged in all the time, or most of the time..... However, seeing as the memory runs at the same voltage ( 1.5v ), as as supposedly takes less time to execute a given process, it should in theory use slightly less energy..... Take the same analogy for cars and engines..... a 1.6 TDI engine at 120 km/h with 90Hp consumes more than the same engine with 110 Hp. You need less power to achieve the same results..... Think about it. Same principle appies to virtualization, and other areas in computing.

Regards,

Harry

 

Interesting theory. I believe that RAM power consumption should be in proportion to the frequency - faster RAM has more access functions per second. However, it will take fewer seconds to complete the activity, so no overall power increase (assuming that RAM idle power consumption is small). Also, the CPU can be getting back to sleep sooner, which is another power saving.

John