Laptops Intel Dual Core T4200 vs T4300

[archish]

Trying to find out some info on these processors as many budget notebooks these days have this proccy. One strange thing I found is T4300 is slower in benchmark compared to T4200.
PassMark Software - CPU Benchmarks - List of Benchmarked CPUs

anyone got any further info on these processor. Looks like peryn with 1 mb cache.

 

[hunt3r]

Yea it essentially is penryn with 1 mb cache. It will perform similarly to the old E2180/E2200 processors which were conroe based and similar clock speeds.

That result is false, most likely results from two different laptops with different specifications. The only difference between them is clock speeds, ie 2.1 ghz for the T4300 vs 2 ghz for the T4200. Everything else the same, the T4300 will always perform better but even then by a max of 5%. Do note that they dont have VT

 

[archish]

hmm i find the VT missing in T6500 proccy also.

 

[hunt3r]

^^Yea thats true

 

[frr]

I have the T4300 in a shiny new Acer NTB.

Although the CPU looks like a Core Duo based on its spec, it does run 64bit code (64b Linux boots just fine) and it does have 36bit physical address space (that many address lines in the FSB).

Among its capabilities reported by Linux, I can see nx (not very surprising) and, interestingly, also "ht". HyperThreading? Well if that's possible, either it's not enabled on my notebook and there's no BIOS option to enable that, or it's enabled and Acer doesn't want you to know ) (just kidding, not likely)

This is a cpuinfo dump taken in 32b Linux (I have power management mostly turned off at compile time):

processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 23
model name	: Pentium(R) Dual-Core CPU       T4300  @ 2.10GHz
stepping	: 10
cpu MHz		: 2094.972
cache size	: 1024 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
apicid		: 0
initial apicid	: 0
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm
bogomips	: 4189.94
clflush size	: 64
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 23
model name	: Pentium(R) Dual-Core CPU       T4300  @ 2.10GHz
stepping	: 10
cpu MHz		: 2094.972
cache size	: 1024 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
apicid		: 1
initial apicid	: 1
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm
bogomips	: 4189.45
clflush size	: 64
power management:

And an excerpt from 32b Linux booting:

SMP: Allowing 2 CPUs, 0 hotplug CPUs
PERCPU: Allocating 36864 bytes of per cpu data
NR_CPUS: 16, nr_cpu_ids: 2, nr_node_ids 1
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 502102
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
xsave/xrstor: enabled xstate_bv 0x3, cntxt size 0x240
Detected 2094.972 MHz processor.
Checking if this processor honours the WP bit even in supervisor mode...Ok.
Calibrating delay loop (skipped), value calculated using timer frequency.. 4189.94 BogoMIPS (lpj=8379888)
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 1024K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
using mwait in idle threads.
Checking 'hlt' instruction... OK.
CPU0: Intel Pentium(R) Dual-Core CPU       T4300  @ 2.10GHz stepping 0a
Booting processor 1 APIC 0x1 ip 0x6000
Initializing CPU#1
Calibrating delay using timer specific routine.. 4189.45 BogoMIPS (lpj=8378918)
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 1024K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 1
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#1.
CPU1: Intel Pentium(R) Dual-Core CPU       T4300  @ 2.10GHz stepping 0a
checking TSC synchronization [CPU#0 -> CPU#1]: passed.
Brought up 2 CPUs
Total of 2 processors activated (8379.40 BogoMIPS).

At 45 nm, I couldn't wish for more in an entry-level notebook PC.