DDR3 Memory Scaling: Intel's Core 2 Quad Examined

Test Setup

System Hardware
Hardware
Details
CPU Intel
Intel Core 2 Extreme QX9770 (45 nm, 3.2 GHz, 12 MB L2 Cache, TDP 130 W, Rev. D0)
Motherboard (Socket 775)
Gigabyte X48T-DQ6 (Rev. 1.0)
Chipset: Intel X48, ICH9R
BIOS: F6D (04/24/2009)
RAM DDR3 (dual)
2 x 2 GB DDR3-1600 (Corsair CM3X2G1600C9DHX)
2 x 1 GB DDR3-1600 (Crucial BL12864BA1608.8SFB)
Graphics
Zotac Geforce GTX 260²
GPU: Geforce GTX 260 (576 MHz)
Graphics RAM: 896 MB DDR3 (1998 MHz)
Stream Processors: 216
Shader Clock: 1242 MHz
Hard Drive
Western Digital VelociRaptor, 300 GB (WD3000HLFS)
10,000 RPM, SATA/300, 16 MB Cache
Blu-Ray Drive
LG GGW-H20L, SATA/150
Power Supply
Fortron Everest 1010, 1010 W
System Software & Drivers
Operating System
Windows Vista Enterprise Version 6.0 x64
Service Pack 2 (Build 6000)
Drivers and Settings
Nvidia GeForce Drivers
Forceware 185.85
Intel Chipset Drivers
Chipset Installation Utility Ver. 9.1.0.1012
Intel Storage Drivers
Matrix Storage Drivers Ver. 8.8.0.1009
3D Games Benchmarks
Far Cry 2
Version: 1.0.1
Far Cry 2 Benchmark Tool
Video Mode: 1280x800
Direct3D 9
Overall Quality: Medium
Bloom activated
HDR off
Demo: Ranch Small
GTA IV
Version: 1.0.3
Video Mode: 1280x1024
- 1280x1024
- Aspect Ratio: Auto
- All options: Medium
- View Distance: 30
- Detail Distance: 100
- Vehicle Density: 100
- Shadow Density: 16
- Definition: On
- Vsync: Off
Ingame Benchmark
Left 4 Dead
Version: 1.0.0.5
Video Mode: 1280x800
Game Settings
- Anti Aliasing none
- Filtering Trilinear
- Wait for vertical sync disabled
- Shader Detail Medium
- Effect Detail Medium
- Model/Texture Detail Medium
Demo: THG Demo 1
Audio Benchmarks and Settings
iTunes
Version: 8.1.0.52
Audio CD ("Terminator II" SE), 53 min.
Convert to AAC audio format
Lame MP3
Version 3.98
Audio CD "Terminator II SE", 53 min
convert wav to mp3 audio format
Command: -b 160 --nores (160 kbps)
Video Benchmarks and Settings
TMPEG 4.6
Version: 4.6.3.268
Video: Terminator 2 SE DVD (720x576, 16:9) 5 Minutes
Audio: Dolby Digital, 48000 Hz, 6-Channel, English
Advanced Acoustic Engine MP3 Encoder (160 kbps, 44.1 KHz)
DiVX  6.8.5
Version: 6.8.5
== Main Menu ==
default
== Codec Menu ==
Encoding mode: Insane Quality
Enhanced multithreading
Enabled using SSE4
Quarter-pixel search
== Video Menu ==
Quantization: MPEG-2
XviD 1.2.1
Version: 1.2.1
Other Options / Encoder Menu -
Display encoding status = off
Mainconcept Reference 1.6.1
Version: 1.6.1
MPEG2 to MPEG2 (H.264)
MainConcept H.264/AVC Codec
28 sec HDTV 1920x1080 (MPEG2)
Audio:
MPEG2 (44.1 kHz, 2 Channel, 16 Bit, 224 kbps)
Codec: H.264
Mode: PAL (25 FPS)
Profile: Settings for eight threads
Adobe Premiere Pro CS4
Version: 4.0
WMV 1920x1080 (39 sec)
Export: Adobe Media Encoder
== Video ==
H.264 Blu-ray
1440x1080i 25 High Quality
Encoding Passes: one
Bitrate Mode: Vbr
Frame: 1440x1080
Frame Rate: 25
== Audio ==
PCM Audio, 48 kHz, Stereo
EncodingPasses: one
Application Benchmarks and Settings
Grisoft AVG Anti-Virus 8
Version: 8.5.287
Virus base: 270.12.16/2094
Benchmark
Scan: compressed ZIP and RAR archives
Winrar 3.9
Version 3.90 x64 BETA 1
Best compression
Benchmark: THG Workload
Winzip 12
Version 12.0 (8252)
WinZIP command line Version 3
Compression = Best
Dictionary = 4096 KB
Benchmark: THG Workload
Autodesk 3D Studio Max 2009
Version: 9.0, x64
Rendering Dragon Image
Resolution: 1920 x 1280 (frame 1-5)
Adobe Photoshop CS 4 (64-bit)
Version: 11
Filtering a 16 MB TIF (15000x7266)
Filters:
Radial Blur (Amount: 10; Method: zoom; Quality: good)
Shape Blur (Radius: 46 px; custom shape: Trademark symbol)
Median (Radius: 1px)
Polar Coordinates (Rectangular to Polar)
Adobe Acrobat 9 Professional
Version: 9.0.0 (Extended)
== Printing Preferences Menu ==
Default Settings: Standard
== Adobe PDF Security - Edit Menu ==
Encrypt all documents (128 bit RC4)
Open Password: 123
Permissions Password: 321
Synthetic Benchmarks and Settings
3DMark Vantage
Version: 1.02
Options: Performance
Graphics Test 1
Graphics Test 2
CPU Test 1
CPU Test 2
PCMark Vantage
Version: 1.00
PCMark Benchmark
Memories Benchmark
SiSoftware Sandra 2009
Version: 2009 SP3
Processor Arithmetic, Cryptography, Memory Bandwidth