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Intel Core i5-540M vs Intel Core 2 Duo P7450

Intel Core i5-540M

► remove from comparison Intel 540M

The Intel Core i5-540M is a mid-range dual core CPU for laptops and clocks (due to the Turbo Mode) from 2.53 to 3.06 GHz. Each core is based on the Nehalem (Westmere) micro-architecture. Hyperthreading enables the Dual Core CPU to handle 4 threads at once (for a better usage of the pipeline). Compared to the faster Core i7-620M, the 540M only has 3 MB Level 3 Cache and a lower clock speed.

A feature of the new Core i5-540M is the integrated graphics card called GMA HD and memory controller. Both are on a separate die that is still manufactured in 45nm whereas the CPU die is already manufactured in the new 32nm process.

The performance of the Core i5-540M is on average faster than a 2.8 GHz Core 2 Duo T9800 and in some benchmarks even faster than the fastest Core 2 Duo T9900 (e.g. 3DMark 06 CPU Score). Therefore, the Core i5-540M is a high end dual core cpu which should handle all daily work and gaming tasks. Only the quad core i7 CPUs can be noticeably faster at tasks that require four or more threads (e.g. rendering).

The 32nm cpu cores of the Westmere generation can also process some new instructions to accelerate AES encryptions.

The integrated Intel Graphics Media Accelerator HD (GMA HD) graphics card is known to be clocked up to 500-766 MHz and should be clearly faster than the old GMA 4500MHD. A GeForce 9400M (ION) should still be a faster (especially as Nvidia and ATI cards have a better driver support than Intel up to now). According to rumors, the GMA core will also use the Turbo Mode regulate the clock speed.

The power consumption of 35 Watt TDP (max.) counts for the whole package and therefore it is clearly better than the 35 Watt TDP of the Core 2 Duo T-series (CPU alone). Due to the Turbo Boost, the Core i5 is likely to use the whole TDP of 35 Watt under load and therefore can use more power than a similar specified Core 2 Duo. In Idle mode, the i5 uses clearly less power than the Core 2 Duo CPUs.

Intel Core 2 Duo P7450

► remove from comparison

The Intel Core 2 Duo P7450 is a dual core processor for laptops. It features 2.1 GHz and a shared level 2 cache of 3 MB. It is based on the 45nm Penryn core, but Trusted Execution and Virtualization (VT-x) are disabled.

The P7450 uses a Penryn (Montevina Update) core that features 2 integer units, 1 floating point unit, 1 load unit, and 1 store unit in a 14-stages long pipeline. Due to the Wide Dynamic Execution Technology, the core is able to simultaneously execute up to four instructions.

The integrated Enhanced Speedstep is able to downclock the core dynamically as low as 800 MHz to save power (in idle mode).

ModelIntel Core i5-540MIntel Core 2 Duo P7450
SeriesIntel Core i5Intel Core 2 Duo
CodenameArrandalePenryn
Series: Core 2 Duo Penryn
Intel Core i5-580M compare2.67 - 3.33 GHz2 / 4 cores3 MB L3
Intel Core i5-560M compare2.67 - 3.2 GHz2 / 4 cores3 MB L3
Intel Core i5-480M compare2.67 - 2.93 GHz2 / 4 cores3 MB L3
Intel Core i5-540M « 2.53 - 3.07 GHz2 / 4 cores3 MB L3
Intel Core i5-460M compare2.53 - 2.8 GHz2 / 4 cores3 MB L3
Intel Core i5-520M compare2.4 - 2.93 GHz2 / 4 cores3 MB L3
Intel Core i5-450M compare2.4 - 2.66 GHz2 / 4 cores3 MB L3
Intel Core i5-430M compare2.26 - 2.53 GHz2 / 4 cores3 MB L3
Intel Core i5-560UM compare1.33 - 2.13 GHz2 / 4 cores3 MB L3
Intel Core i5-470UM compare1.33 - 1.87 GHz2 / 4 cores3 MB L3
Intel Core i5-540UM compare1.2 - 2 GHz2 / 4 cores3 MB L3
Intel Core i5-520UM compare1.06 - 1.87 GHz2 / 4 cores3 MB L3
Intel Core i5-430UM compare1.2 - 1.73 GHz2 / 4 cores3 MB L3
Intel Core 2 Duo T9900 compare3.06 GHz2 / 2 cores
Intel Core 2 Duo T9800 compare2.92 GHz2 / 2 cores
Intel Core 2 Duo P9700 compare2.8 GHz2 / 2 cores
Intel Core 2 Duo T9600 compare2.8 GHz2 / 2 cores
Intel Core 2 Duo P9600 compare2.66 GHz2 / 2 cores
Intel Core 2 Duo T9550 compare2.66 GHz2 / 2 cores
Intel Core 2 Duo T9500 compare2.6 GHz2 / 2 cores
Intel Core 2 Duo SP9600 compare2.53 GHz2 / 2 cores
Intel Core 2 Duo P9500 compare2.53 GHz2 / 2 cores
Intel Core 2 Duo T9400 compare2.53 GHz2 / 2 cores
Intel Core 2 Duo P8800 compare2.66 GHz2 / 2 cores
Intel Core 2 Duo T9300 compare2.5 GHz2 / 2 cores
Intel Core 2 Duo P8700 compare2.53 GHz2 / 2 cores
Intel Core 2 Duo SP9400 compare2.4 GHz2 / 2 cores
Intel Core 2 Duo P8600 compare2.4 GHz2 / 2 cores
Intel Core 2 Duo T8300 compare2.4 GHz2 / 2 cores
Intel Core 2 Duo SP9300 compare2.26 GHz2 / 2 cores
Intel Core 2 Duo P8400 compare2.26 GHz2 / 2 cores
Intel Core 2 Duo P7570 compare2.26 GHz2 / 2 cores
Intel Core 2 Duo P7550 compare2.26 GHz2 / 2 cores
Intel Core 2 Duo T6770 compare2.3 GHz2 / 2 cores
Intel Core 2 Duo SL9600 compare2.13 GHz2 / 2 cores
Intel Core 2 Duo P7450 « 2.13 GHz2 / 2 cores
Intel Core 2 Duo T6670 compare2.2 GHz2 / 2 cores
Intel Core 2 Duo T6600 compare2.2 GHz2 / 2 cores
Intel Core 2 Duo T8100 compare2.1 GHz2 / 2 cores
Intel Core 2 Duo P7370 compare2 GHz2 / 2 cores
Intel Core 2 Duo P7350 compare2 GHz2 / 2 cores
Intel Core 2 Duo T6570 compare2.1 GHz2 / 2 cores
Intel Core 2 Duo T6500 compare2.1 GHz2 / 2 cores
Intel Core 2 Duo SL9400 compare1.86 GHz2 / 2 cores
Intel Core 2 Duo SL9380 compare1.8 GHz2 / 2 cores
Intel Core 2 Duo T6400 compare2 GHz2 / 2 cores
Intel Core 2 Duo SL9300 compare1.6 GHz2 / 2 cores
Intel Core 2 Duo SU9600 compare1.6 GHz2 / 2 cores
Intel Core 2 Duo SU9400 compare1.4 GHz2 / 2 cores
Intel Core 2 Duo SU7300 compare1.3 GHz2 / 2 cores
Intel Core 2 Duo SU9300 compare1.2 GHz2 / 2 cores
Clock2530 - 3066 MHz2130 MHz
FSB25001066
L1 Cache128 KB
L2 Cache512 KB3 MB
L3 Cache3 MB
Cores / Threads2 / 42 / 2
TDP35 Watt25 Watt
Transistors382+177 Million410 Million
32 nm45 nm, 1.05-1.15V
Die Size81+114 mm2107 mm2
max. Temp.105 °C90 °C
SocketBGA1288, PGA988PGA478
FeaturesTurbo Boost, Hyper Threading, Enhanced Speedstep, integrierte GMA HD 733MHz,Intel 64, Enhanced Speedstep, Execute Disable Bit
Architecturex86x86
$257 U.S.
Announced
Manufacturerark.intel.comark.intel.com

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
100%
1 540M +
min: 2.16     avg: 2.2     median: 2.2 (3%)     max: 2.29 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
100%
540M +
min: 3061     avg: 3141     median: 3132.5 (19%)     max: 3214 Points
min: 2242     avg: 2389     median: 2305.5 (14%)     max: 2575 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
100%
540M +
min: 6545     avg: 6950     median: 7030.5 (5%)     max: 7211 Points
min: 4121     avg: 4473     median: 4373 (3%)     max: 4863 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
100%
1 540M +
min: 7844     avg: 8349     median: 8408 (6%)     max: 8600 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
100%
1 540M +
min: 3237     avg: 3785     median: 3938 (5%)     max: 3991 Points
wPrime 2.10 - wPrime 2.0 1024m *
100%
540M +
min: 569     avg: 740     median: 577 (7%)     max: 1352 s
min: 1230     avg: 1237     median: 1239 (15%)     max: 1243 s
wPrime 2.10 - wPrime 2.0 32m *
100%
540M +
min: 18.1     avg: 18.8     median: 18.5 (4%)     max: 19.9 s
min: 35.9     avg: 38     median: 38.6 (8%)     max: 39 s
3DMark 06 - CPU - 3DMark 06 - CPU
100%
540M +
min: 2643     avg: 2814     median: 2826 (6%)     max: 2905 Points
min: 1845     avg: 1896     median: 1900 (4%)     max: 1938 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
100%
540M +
15 s (3%)
min: 22     avg: 23.5     median: 23.9 (5%)     max: 25 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
100%
540M +
min: 35     avg: 36.2     median: 36 (2%)     max: 37 s
min: 54     avg: 55.7     median: 55.4 (2%)     max: 59.6 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
100%
540M +
min: 822     avg: 848     median: 850 (4%)     max: 867 s
min: 1334     avg: 1338     median: 1337.5 (6%)     max: 1341 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
100%
540M +
min: 32820     avg: 34953     median: 33495 (16%)     max: 40000 MIPS
min: 16477     avg: 18533     median: 19560 (9%)     max: 19563 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
100%
540M +
min: 26630     avg: 27546     median: 26815 (21%)     max: 29923 MFLOPS
min: 14460     avg: 14811     median: 14700 (11%)     max: 15272 MFLOPS
PCMark 05 - PCMark 05 - Standard
100%
540M +
min: 6030     avg: 6499     median: 6498.5 (13%)     max: 6967 Points
min: 4809     avg: 5158     median: 5055 (10%)     max: 5712 Points
Windows Vista Experience Index - Windows Vista Leistungsindex - Prozessor
100%
1 P7450 +
5.1 Points (73%)
Windows 7 Experience Index - Win7 CPU
100%
540M +
min: 5.2     avg: 6.4     median: 6.6 (85%)     max: 6.8 Points
5.7 Points (73%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
100%
540M +
min: 7801     avg: 7897     median: 7904 (7%)     max: 7994 Points
min: 3804     avg: 3918     median: 3918 (3%)     max: 4032 Points

Average Benchmarks Intel Core i5-540M → 100% n=13

Average Benchmarks Intel Core 2 Duo P7450 → 78% n=13

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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v1.27
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Redaktion, 2017-09- 8 (Update: 2023-07- 1)