My sincerest thanks go out to Intel for providing both the QX6700 CPU as well as the Bad Axe 2 motherboard.
When you enter the computer world, one of the first companies you will come across is Intel. And quite rightly so. After all, you cannot have a functioning computer without a CPU – that would be like trying to build a car without an engine. Intel has been with us for almost 40 years. All that time, it has been powering PCs, constantly increasing their performance over time.
In the last years, however, Intel was struggling to deliver the performance we are used to. AMD gained advantage in both gaming and benchmarking, sponsoring many events, and bragging about the capabilities of its 64-bit processors. Intel wasn’t asleep though – it did what it could to offer high performance solutions, yet it wasn’t too successful. There was something “wrong” with Intel’s CPUs – either they ran hot, or had large power requirements, or were simply slower than the AMD counterpart. So, the PC enthusiast world split up into two groups – those that were running AMD, and enjoying performance, and those that stayed with Intel, hoping for the return of the king.
Intel took the world by storm when news about its new Conroe architecture started appearing all over the Internet. Intel fans started to rejoice. They knew that now was the time for the enterprise to strike back at AMD, and regain the performance crown. Those in favor of AMD simply didn’t know what to think. At first, waves of amazement started to appear. But then, doubt kicked in – how on earth could Intel possibly achieve such benchmark scores on a CPU that was going to be run 24/7, and not just some super-cooled test sample? Is Intel playing a trick on us? As the official launch date got closer, even the most die-hard AMD supporters knew that, in order to enjoy maximum performance, they would have to step over to the dark side. There was no turning back.
It has now been half a year that we have enjoyed the benefits of the Core 2 architecture. Intel has risen from its own dust, showing people all around the world that it is in better shape than ever. Being very ambitious, Intel is prepared to launch a new architecture every two years, prolonging the applicability of Moore’s law. Since Intel stepped away from its own race for Gigahertz, it has shown a healthy trend in producing fast CPUs. Now, the “hit of the season” (I sure hope it lasts more than a year) is parallel computing – having more cores on a CPU, which in turn means faster processing in applications that are multi threaded.
Today, we take a look at the latest and greatest from Intel – the Core 2 Extreme QX6700. Sporting 4 cores, this CPU is bound to scream. But are there enough programs and benchmarks to take full advantage of what this CPU has to offer? How much of a performance increase can we expect, going from two cores to four? Read on to find out!
Intel Conroe CPUs
Below, you can find a table that lists Intel’s current Core 2 offerings
Model
Core Clock (MHz)
Cores
L2 Cache (MB)
Front side bus (MHz)
TDP (W)
E6300
1866
2
2
1066
65
E6400
2133
2
2
1066
65
E6600
2394
2
4
1066
65
E6700
2667
2
4
1066
65
X6800
2933
2
4
1066
75
QX6700
2667
4
2x 4
1066
130
We received the test kit at the office in a large brown box. Inside waited some basic instructions, as well as the motherboard with the CPU already mounted, and Intel’s stock heatsink.
Intel QX6700
Intel’s Core 2 Extreme is to be considered the first Quad-core CPU out on the market. Below are its main features:
Brand ID
Intel Core 2 Extreme
Processor number
QX6700
Core Frequency
2.66 GHz
System bus frequency
1066 MHz
TDP
130 W
Stepping
B-3
Number of CPU cores
4
L2 Cache
8MB (2x 4MB)
CPUID
06F7
Core to bus ratio limit
10:1
Max Processor Input Voltage
1.350V
PECI Enabled
Yes
Enhanced Intel Speed Step Technology (EIST)
Yes
Extended HALT State (C1E) Enabled
Yes
Execute Disable Bit (XD) Enabled
Yes
Intel 64 Technology
Yes
Intel Virtualisation Technology
Yes
Package/Socket
FC-LGA775
Well, what is under the heatspreader? Intel’s engineers have managed to squeeze two E6700 cores under one IHS – a marvelous feat that offers quad-core performance today. After all, it makes a lot of sense from Intel’s stand point – instead of spending a lot of money on developing one die with four cores in it, it is much easier to put together two dies, each with two cores. Also, Intel can pick the best E6700 chips for its QX6700 CPUs, and not have to worry about refining the manufacturing process as it would with a whole new core. Worth noting is also the massive amount of L2 cache – 8 MB in total, 4 MB per die, 2 MB per core.
Below, you can see what the two cores look like in real life:
Intel Bad-Axe 2
I won’t go into a lot of detail with the motherboard that was used. It was supplied as part of the test kit, and is Intel’s top-of-the-line motherboard, utilizing the 975X chipset. The Bad-Axe 2 features numerous improvements over its predecessor, mainly in the overclocking segment. Most importantly, it supports Core 2 Quad CPUs.
Our Bad-Axe 2 motherboard was a pre-production sample. This meant that it did not have automatic fan control, so the fan had to be set to a specific percentage in the BIOS. Retail boards can control the fan speed automatically depending on temperature. I also hope that Intel provides a better manual with their retail motherboards, we only received a simple poster explaining the main features and a simplified diagram of how to put together a computer.