Lots and lots of graphs:
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_10.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_11.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_12.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_13.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_14.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_15.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_16.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_17.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_18.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_19.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_20.html
Their conclusion:
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_21.html
"As for the general situation between AMD and Intel in the today's processor market, we can now state that in terms of supported features Prescott 2M based CPUs have finally leveled out with the Athlon 64 processor family. Instead of 64-bit AMD64 extensions of Athlon 64 processors, Pentium 4 6XX support EM64T extensions. An analogue to AMD's Cool'n'Quiet technology is the EIST from Intel. Moreover, Intel processors acquired NX-bit support (XD-bit, as Intel calls it).
The performance of the top Intel CPUs is still somewhat lower than that of the top Athlon 64 solutions. Although Pentium 4 processors retain leadership in their traditionally strong fields such as video data encoding or final rendering, they still yield to AMD CPUs in most applications including contemporary games."
Keep in mind that this is one series of tests by one group of people. My research continues!
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_10.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_11.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_12.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_13.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_14.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_15.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_16.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_17.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_18.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_19.html
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_20.html
Their conclusion:
http://www.xbitlabs.com/articles/cpu/display/pentium4-6xx_21.html
"As for the general situation between AMD and Intel in the today's processor market, we can now state that in terms of supported features Prescott 2M based CPUs have finally leveled out with the Athlon 64 processor family. Instead of 64-bit AMD64 extensions of Athlon 64 processors, Pentium 4 6XX support EM64T extensions. An analogue to AMD's Cool'n'Quiet technology is the EIST from Intel. Moreover, Intel processors acquired NX-bit support (XD-bit, as Intel calls it).
The performance of the top Intel CPUs is still somewhat lower than that of the top Athlon 64 solutions. Although Pentium 4 processors retain leadership in their traditionally strong fields such as video data encoding or final rendering, they still yield to AMD CPUs in most applications including contemporary games."
Keep in mind that this is one series of tests by one group of people. My research continues!