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Intel Pentium D 940 3.2GHz Dual Core Processor Review

Intel Pentium D 940 3.2GHz Dual Core Processor Review - PCSTATS
Abstract: Built on Intel's 65 nanometer manufacturing process and with two physical processing cores running at 3.2 GHz each, backed up by 2MB of L2 cache, the socket 775 chip certainly makes quite a splash.
 82% Rating:   
Filed under: CPU / Processors Published:  Author: 
External Mfg. Website: Intel Jul 25 2006   Colin Sun  
Home > Reviews > CPU / Processors > Intel Pentium D 940

Overclocking the 3.2GHz chip

Overclocking Results:
Stock Max. OC
Processor Speed: 3.2 GHz

4.4 GHz

If you're new to Overclocking and not sure what to do, check out these two excellent Guides for some pointers:
Overclocking the CPU and Memory
Overclocking the Videocard

After the test system based on a Foxconn 975X7AA-8EKRS2H motherboard, 2GB of Corsair XMS2-8500 DDR-2 memory, a Western Digital Raptor WD740 hard drive, and a set of MSI NX7800GTX videocards (in SLI) was installed with Microsoft Windows XP, we set about overclocking the Intel Pentium D940 processor to the hilt!

We have high hopes for the little LGA775 chip because it is built on the 65nm manufacturing process and does not suffer from heat problems like the Prescott/Smithfield 90nm cores. We changed the memory divider from 1:1 to 2:3 in order to make the Corsair XMS-8500 DDR-2 memory run at DDR2-533 speeds. With this setting the memory will not max out before the processor does, and that allows us to find the true upper limits of CPU overclockability.

Starting at 200 MHz, the front side bus was increased in 4-5 MHz intervals, if you're a new overclocker you may want to take smaller increases in speed. The Intel Pentium D 940 responded positively to these changes and rapidly overclocked to a nice round 3.8 GHz (from 3.2GHz) before the CPU voltage needed to be increased to 1.4V. The Pentium D 940 hiccupped a bit when it passed by the 4 GHz mark, but this was resolved by increasing the CPU voltage by 0.05V to 1.45V.

After a few more tries the socket 775 Intel Pentium D 940 processor eventually settled on a maximum overclocked speed of 4.4 GHz. That is certainly a very healthy overclock up from 3.2 GHz!

Prelude to Benchmarks - Test System Configuration

Over the following page we'll be running the socket 775 Intel Pentium D 940 processor though PCSTATS standard set of gaming, productivity, and 64-bit processor benchmarks. There are a wide variety of gaming and synthetic benchmarks here to illustrate what kind of performance boost users can expect from these latest, dual core 64-bit capable processors.

The specific details of how the Intel Pentium D 940 processor test systems were configured for benchmarking - including the hardware, software drivers, operating system and benchmark versions - are indicated below. In the third and fourth columns are the general specs for the AMD and Intel reference platforms that the dual core Pentium D 940 processor is being compared against.

Please take a moment to look over PCSTATS test system configurations before moving on to the individual benchmark results on the next several pages.

PCSTATS Test System Configurations
Test System #1 Test System #2 AMD Reference Systems Intel Reference System
Processor: Intel Pentium D 940

Intel Pentium D 840

AMD Athlon64 FX-60
AMD Athlon64 4000+
AMD Athlon64 X2 5000+
AMD Athlon64 FX-62
Socket:

Socket 775

Socket 939

Socket AM2

Clock Speed: 16 x 200 MHz = 3.2 GHz
16 x 275 MHz = 4.4 GHz
16 x 200 MHz = 3.2 GHz 13 x 200 MHz = 2.6 GHz
12 x 200 MHz = 2.4 GHz
13 x 200 MHz = 2.6 GHz
14 x 200 MHz = 2.8 GHz
Chipset: Intel 975X nForce4 SLI nForce 590 SLI
Motherboards: Foxconn 975X7AA-8EKRS2H Asus A8N-SLI Premium Asus M2N32SLI-DLX
Videocard: 2x MSI NX7800GTX-VT2D256E in SLI
Memory: 2x 1024MB Corsair XMS2-8500
DDR-2
2x 512MB OCZ Gold GX PC3500
DDR
2x 1024MB Corsair XMS2-8500
DDR-2
Memory Latency: 5-5-5-15 2-2-2-5 4-4-4-12
Hard Drive: 74GB Western Digital Raptor WD740
CDROM: AOpen Combo 52x
PowerSupply: PC Power & Cooling TurboCool 510 SLI
Heatsink:

Thermaltake Jungle 512

Athlon64 4000+ Reference Heatsink

Athlon64 FX-62 Reference Heatsink

Software Setup:

Microsoft WindowsXP SP2
Microsoft WindowsXP x64 Edition
Intel INF 7.2.2
nVIDIA Forceware 91.27

Microsoft WindowsXP SP2
Microsoft WindowsXP x64 Edition
nVIDIA Forceware NF4 6.70
nVIDIA Forceware 91.27

Microsoft WindowsXP SP2
Microsoft WindowsXP x64 Edition
nVIDIA Forceware NF4 9.34
nVIDIA Forceware 91.27

Benchmarks:
32-Bit Benchmarks:
SYSmark 2004
Business Winstone 2004
Content Creation 2004
SiSoft Sandra 2005
Maya Render Test
Super Pi 1.1
PCMark05
3DMark05
3DMark06
Doom 3
Quake 4
FarCry
FEAR

64-Bit Benchmarks:
PCMark04
PCMark05
Cinebench 2003
ScienceMark 2.0
Mini-GZIP
DiVX Encoding

Dual Core 3D Tests:
Prime95 + 3DMark05
Prime95 + Doom 3
Prime95 + FEAR

< Previous Page © 2017 PCSTATS.com Next Page >

 

Contents of Article: Intel Pentium D 940
 Pg 1.  Intel Pentium D 940 3.2GHz Dual Core Processor Review
 Pg 2.  Intel Dual Core Technology
 Pg 3.  Quiet LGA775 Thermal Solution
 Pg 4.  — Overclocking the 3.2GHz chip
 Pg 5.  Pure 32 bit Benchmarks: Sysmark 2004
 Pg 6.  Pure 32 bit Benchmarks: Office Productivity, SiSoft Sandra 2005
 Pg 7.  Pure 32-Bit Benchmarks: Maya Render Test, Super Pi
 Pg 8.  Pure 32-Bit Benchmarks: PCMark05
 Pg 9.  Pure 32-Bit Benchmarks: 3DMark05
 Pg 10.  Pure 32-Bit Benchmarks: 3DMark06
 Pg 11.  Pure 32-Bit Benchmarks: Doom 3
 Pg 12.  Pure 32-Bit Benchmarks: Quake 4
 Pg 13.  Pure 32-Bit Benchmarks: FarCry
 Pg 14.  Pure 32-Bit Benchmarks: FEAR
 Pg 15.  64 Bit Benchmarks: ScienceMark 2
 Pg 16.  64 Bit Benchmarks: Mini-GZip, DiVX Encoding
 Pg 17.  Multi-Threaded Benchmarks: 3DMark05
 Pg 18.  Multi-Threaded Benchmarks: Doom 3
 Pg 19.  Multi-Threaded Benchmarks: FEAR
 Pg 20.  65nm Pentium D 940 - a step in the right direction?

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