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AMD Athlon64 X2 4800+ 65nm Processor Review
AMD Athlon64 X2 4800+ 65nm Processor Review - PCSTATS
Today the money is with 65nm SOI processor manufacturing, and with the AMD Athlon64 X2 4800+ the company has finally done the die shrink.
 84% Rating:   
Filed under: CPU / Processors Published:  Author: 
External Mfg. Website: AMD Mar 07 2007   C. Sun  
Home > Reviews > CPU / Processors > AMD Athlon64 X2 4800+

Will 65nm improve overclocking potential?

Overclocking Results:
stock max. oc
processor speed: 2.5 ghz

3.03 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

The Socket AM2 90nm AMD Athlon64 processors were pretty good at overclocking and usually when a processor architecture goes through a die shrink, overclocking potential increases. It'll be interesting to see how this first batch of 65nm Athlon64 X2 CPUs handle being pushed to the limit.

Before the overclocking tests got underway, the Corsair Twin2X PC2-8500 memory was first set to run at DDR2-533 MHz mode, this way it will not hold the CPU back. Keeping the 12.5x CPU clock multiplier, the Asus M2N32-SLI motherboard clock speed was increased slowly from 200 MHz on up.

Overclocking in 5 MHz increments, the AMD Athlon64 X2 4800+ was slowly pushed to 215 MHz before the system began experiencing any signs of instability. At that point the processor voltage had to be increased to 1.35V to stabilize the system.

At 225 MHz the Athlon64 X2 4800+ flaked out, this time the processor voltage was increased to 1.4V. To reach 235 MHz (or 2.94 GHz) the processor voltage required another tweak to 1.45V in order to keep the system stable.

The AMD Athlon64 X2 4800+ maxed at a motherboard clock speed of 242 MHz (or 3.03 GHz), anything higher and the system was just too unstable to run benchmarks. Increasing the voltages didn't help and I have a feeling that heat might be the issue as the CPU temperatures according to the Asus M2N32SLI-DLX motherboard were in the range of 70 degrees Celsius.

Enthusiasts should note at stock speeds the AMD Athlon64 X2 4800+ processor did not generate a lot of heat, only when overclocked with a high voltage did heat loads jumped dramatically. Don't put away that watercooling or phase change system just yet, you'll still need it for AMD's 65nm processors.

Prelude to Benchmarks - Test System Configuration

Over the following page we'll be running the socket AM2 2.5 GHz Athlon64 X2 4800+ 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 K8 processors.

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 Configuations
test system #1 amd reference systems #1 amd reference systems #2 intel reference system
processor: amd athlon64 x2 4800+ amd Sempron 3600+
AMD Athlon64 FX-62
AMD Athlon64 X2 5000+
AMD Athlon64 FX-60
AMD Athlon64 4000+

Intel Core 2 Duo E6600
Intel Pentium D 840
Intel Pentium D 940

Socket: Socket AM2 Socket AM2 Socket 939 Socket 775
Clock Speed: 12.5 x 200 MHz = 2.5 GHz
12.5 x 242 MHz = 3.03 GHz

10 x 200 MHz = 2.0 GHz
14 x 200 MHz = 2.8 GHz
13 x 200 MHz = 2.6 GHz

13 x 200 MHz = 2.6 GHz
12 x 200 MHz = 2.4 GHz
16 x 200 MHz = 3.2 GHz
16 x 200 MHz = 3.2 GHz
Chipset: nForce 590 SLI nForce4 SLI Intel 975X
Motherboards: Asus M2N32SLI-DLX Asus A8N-SLI Premium (NF4 SLI) Foxconn 975X7AA-8EKRS2H
Videocard: 2x MSI NX7800GTX-VT2D256E in SLI
Memory: 2x 1024MB Corsair XMS2-8500
2x 512MB OCZ Gold GX PC3500
2x 1024MB Corsair XMS2-8500
Memory Latency: 4-4-4-12 2-2-2-5 5-5-5-15
Hard Drive: 74GB Western Digital Raptor WD740
CDROM: AOpen Combo 52x
PowerSupply: PC Power & Cooling TurboCool 510 SLI
Heatsink: Athlon64 FX-62 Reference Heatsink Athlon64 4000+ Reference Heatsink Intel Reference Heatsink
Software Setup: Microsoft WindowsXP SP2
Microsoft WindowsXP x64 Edition
nVIDIA Forceware NF4 9.34
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
Intel INF 7.2.2
nVIDIA Forceware 91.27
32-Bit Benchmarks:
SYSmark 2004
Business Winstone 2004
Content Creation 2004
SiSoft Sandra 2005
Maya Render Test
Super Pi 1.1
Doom 3
Quake 4

64-Bit Benchmarks:
Cinebench 2003
ScienceMark 2.0
DiVX Encoding

CPU Load 3D Tests:
Prime95 + 3DMark05
Prime95 + Doom 3
Prime95 + FEAR

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Contents of Article: AMD Athlon64 X2 4800+
 Pg 1.  AMD Athlon64 X2 4800+ 65nm Processor Review
 Pg 2.  65nm manufacturing for AMD at Fab36
 Pg 3.  Athlon64 X2 Performance-Per-Watt Metrics
 Pg 4.  Athlon64 X2 4800+ AM2 System Power Draw Tests
 Pg 5.  Technologies Behind the Athlon64 X2 4800+
 Pg 6.  — Will 65nm improve overclocking potential?
 Pg 7.  Pure 32-Bit Benchmarks: SYSMark 2004
 Pg 8.  Pure 32-Bit Benchmarks: Office Productivity, SiSoft Sandra
 Pg 9.  Pure 32-Bit Benchmarks: Maya Render Test, Super Pi
 Pg 10.  Pure 32-Bit Benchmarks: PCMark05, 3DMark05
 Pg 11.  Pure 32-Bit Benchmarks: 3DMark06, Doom 3
 Pg 12.  Pure 32-Bit Benchmarks: Quake 4, FarCry
 Pg 13.  Pure 32-Bit Benchmarks: FEAR
 Pg 14.  64 Bit Benchmarks: ScienceMark 2
 Pg 15.  64 Bit Benchmarks: Mini-GZip, DiVX Encoding
 Pg 16.  Multi-Threaded Benchmarks: 3DMark05, Doom 3
 Pg 17.  Multi-Threaded Benchmarks: FEAR / Conclusions

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