Intel Core i5-540UM vs Intel Core i5-580M vs Intel Core i5-520UM

Intel Core i5-540UM

► remove

The Intel Core i5-540UM is a Ultra Low Voltage dual-core processor for small and light laptops. It is clocked with 1.2 - 2 GHz (if Turbo Boost is enabled). 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). AES, VT-d and Trusted Execution are activated (compared to the 430UM).

A feature of the new Core i5-540UM is the integrated graphics card (called Intel HD Graphics) 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.

Due to the integrated memory controller, the HyperThreading and Turbo Boost, the  Core i5-540UM is faster than a similar clocked Core 2 Duo (1.2 GHz) in all (us known) applications and benchmarks. Still the Turbo Boost may not trigger very often (sometimes it is even not activated in the BIOS) and therefore the maximum of 2 GHz may not be important.

The integrated Intel Graphics Media Accelerator HD (GMA HD) graphics card is between 166-500 MHz (Turbo Boost) and therefore the base speed is clearly below the non low voltage versions. The performance should still be faster than the old GMA 4500MHD.

The power consumption of 18 Watt TDP (max.) counts for the whole package and therefore it is clearly better than the 17 Watt TDP of the Core 2 Duo SL-series (CPU alone).

Intel Core i5-580M

► remove Intel 580M

The Intel Core i5-580M is a high end dual core CPU for laptops and clocks (due to the Turbo Mode) from 2.66 to 3.33 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 Core i7-620M, the 580M only has 3 MB Level 3 Cache.

A feature of the new Core i5-580M is the integrated graphics card called GMA HD and memory controller for DDR3-800/1066. 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 i5-580M should be a bit beyond the Core i7-620M and therefore the second fastest dual core CPU for laptops in 2010. Compared to the older Core 2 Duo models, the i5-580M should be faster than the T9900. Therefore, the Core i5-580M 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 i5-520UM

► remove Intel 520UM

The Intel Core i5-520UM is a Ultra Low Voltage dual-core processor for small and light laptops. It is clocked with 1.06 - 1.86 GHz (if Turbo Boost is enabled). 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 Core i7-620UM, the i5 offers only 3MB Level 3 cache (i7 4MB) and a lower maximum Turbo Boost frequency. Other Core i5 CPUs (withouth the U in the name) are faster due to the higher clock speed, but need more power.

A feature of the new Core i5-520UM is the integrated graphics card (called Intel HD Graphics) 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.

Due to the integrated memory controller, the HyperThreading and Turbo Boost, the  Core i5-520UM is faster than a similar clocked Core 2 Duo (1.2 GHz) in all (us known) applications and benchmarks. Still the Turbo Boost may not trigger very often (sometimes it is even not activated in the BIOS) and therefore the maximum of 1.86 GHz is not very important. 

The 32nm cpu cores of the Westmere generation can also process some new instructions to accelerate AES encryptions. Modern applications that support AES encoding can profit significantly using the new instructions (e.g. the Communications Suite test in the PCMark Vantage boosts up to 70% using AES in the faster Core i5-520M).

The integrated Intel Graphics Media Accelerator HD (GMA HD) graphics card is between 166-500 MHz (Turbo Boost) and therefore the base speed is clearly below the non low voltage versions. The performance should still be faster than the old GMA 4500MHD.

The power consumption of 18 Watt TDP (max.) counts for the whole package and therefore it is clearly better than the 17 Watt TDP of the Core 2 Duo SL-series (CPU alone).

Intel Core i5-540UMIntel Core i5-580MIntel Core i5-520UM
Intel Core i5Intel Core i5Intel Core i5
ArrandaleArrandaleArrandale
: Core i5 Arrandale
Intel Core i5-580M2666 - 3333 MHz2 / 43 MB
Intel Core i5-560M2667 - 3200 MHz2 / 43 MB
Intel Core i5-480M2666 - 2933 MHz2 / 43 MB
Intel Core i5-540M2530 - 3066 MHz2 / 43 MB
Intel Core i5-460M2530 - 2800 MHz2 / 43 MB
Intel Core i5-520M2400 - 2933 MHz2 / 43 MB
Intel Core i5-450M2400 - 2660 MHz2 / 43 MB
Intel Core i5-430M2260 - 2533 MHz2 / 43 MB
Intel Core i5-560UM1333 - 2130 MHz2 / 43 MB
Intel Core i5-470UM1333 - 1867 MHz2 / 43 MB
» Intel Core i5-540UM1200 - 2000 MHz2 / 43 MB
Intel Core i5-520UM1060 - 1866 MHz2 / 43 MB
Intel Core i5-430UM1200 - 1730 MHz2 / 43 MB
» Intel Core i5-580M2666 - 3333 MHz2 / 43 MB
Intel Core i5-560M2667 - 3200 MHz2 / 43 MB
Intel Core i5-480M2666 - 2933 MHz2 / 43 MB
Intel Core i5-540M2530 - 3066 MHz2 / 43 MB
Intel Core i5-460M2530 - 2800 MHz2 / 43 MB
Intel Core i5-520M2400 - 2933 MHz2 / 43 MB
Intel Core i5-450M2400 - 2660 MHz2 / 43 MB
Intel Core i5-430M2260 - 2533 MHz2 / 43 MB
Intel Core i5-560UM1333 - 2130 MHz2 / 43 MB
Intel Core i5-470UM1333 - 1867 MHz2 / 43 MB
Intel Core i5-540UM1200 - 2000 MHz2 / 43 MB
Intel Core i5-520UM1060 - 1866 MHz2 / 43 MB
Intel Core i5-430UM1200 - 1730 MHz2 / 43 MB
Intel Core i5-580M2666 - 3333 MHz2 / 43 MB
Intel Core i5-560M2667 - 3200 MHz2 / 43 MB
Intel Core i5-480M2666 - 2933 MHz2 / 43 MB
Intel Core i5-540M2530 - 3066 MHz2 / 43 MB
Intel Core i5-460M2530 - 2800 MHz2 / 43 MB
Intel Core i5-520M2400 - 2933 MHz2 / 43 MB
Intel Core i5-450M2400 - 2660 MHz2 / 43 MB
Intel Core i5-430M2260 - 2533 MHz2 / 43 MB
Intel Core i5-560UM1333 - 2130 MHz2 / 43 MB
Intel Core i5-470UM1333 - 1867 MHz2 / 43 MB
Intel Core i5-540UM1200 - 2000 MHz2 / 43 MB
» Intel Core i5-520UM1060 - 1866 MHz2 / 43 MB
Intel Core i5-430UM1200 - 1730 MHz2 / 43 MB
1200 - 2000 MHz2666 - 3333 MHz1060 - 1866 MHz
250048002500
512 KB512 KB512 KB
3 MB3 MB3 MB
2 / 42 / 42 / 4
18 35 18
382+177 382+177 382+177
32 32 32
81+114 mm281+114 mm281+114 mm2
105 °C105 °C105 °C
BGA1288BGA1288, PGA988BGA1288
Intel HD Graphics 166-500MHz, DDR3-800 Memory Controller, Turbo Boost, Hyper-Threading, Virtualization Technology VT-x, Intel 64, Idle States, Enhanced Speedstep, Thermal Monitoring, Fast Memory Access, Flex Memory Access, Execute Disable BitTurbo Boost, Hyper Threading, Enhanced Speedstep, integrierte GMA HD 500-733MHz, Dual Channel DDR3 memory controllerTurbo Boost (1.86 GHz max), Hyper Threading, Enhanced Speedstep, integrated GMA HD 166-500MHz
$250 U.S.$266 U.S.$241 U.S.
Intel Core i5 540UMIntel Core i5 580MIntel Core i5 520UM
128 KB

Cinebench R11.5 - CPU Multi 64Bit
100%
580M +
2.5 Points (6%)
1.2 Points (3%)
Cinebench R10 - Rendering Single 32Bit
100%
580M +
min: 3511     avg: 3545.3     median: 3519 (38%)     max: 3606 Points
min: 1471     avg: 1981.3     median: 1942 (21%)     max: 2569 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
100%
580M +
min: 7591     avg: 7699.7     median: 7666 (12%)     max: 7842 Points
min: 2785     avg: 3670.3     median: 3778 (6%)     max: 4340 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
100%
580M +
min: 7549     avg: 8744.3     median: 9273 (12%)     max: 9411 Points
min: 3946     avg: 4599.5     median: 4632 (6%)     max: 5187 Points
Cinebench R10 - Rendering Single CPUs 64Bit
100%
580M +
min: 3535     avg: 4095.3     median: 4374 (42%)     max: 4377 Points
min: 2263     avg: 2561.3     median: 2423 (23%)     max: 3135 Points
wPrime 2.0x - 1024m *
min: 995     avg: 1110     median: 1109 (13%)     max: 1224 seconds
wPrime 2.0x - 32m *
min: 31     avg: 35.2     median: 35 (7%)     max: 38 seconds
3DMark 06 - CPU
100%
580M +
min: 3126     avg: 3174     median: 3174 (21%)     max: 3222 Points
min: 982     avg: 1429.2     median: 1492 (10%)     max: 1718 Points
Super Pi mod 1.5 XS 1M *
100%
580M +
min: 13     avg: 13.3     median: 13 (3%)     max: 14 Seconds
min: 24     avg: 26.7     median: 25 (5%)     max: 31 Seconds
Super Pi mod 1.5 XS 2M *
100%
580M +
min: 32     avg: 33     median: 33 (1%)     max: 34 Seconds
min: 56     avg: 62.3     median: 58 (2%)     max: 73 Seconds
Super Pi Mod 1.5 XS 32M *
100%
580M +
min: 769     avg: 781     median: 773 (3%)     max: 801 Seconds
min: 1303     avg: 1439.3     median: 1341 (6%)     max: 1674 Seconds
SiSoft Sandra Dhrystone (MIPS)
100%
580M +
43800 MIPS (21%)
SiSoft Sandra Whetstone (MFLOPS)
100%
580M +
31750 MFLOPS (24%)
PCMark 05 - Standard 1024x768
min: 2848     avg: 3571     median: 3925 (25%)     max: 3940 Points
Windows 7 Experience Index - Processor
100%
580M +
6.9 points (99%)
min: 3     avg: 4.7     median: 4 (57%)     max: 5 points
3DMark Vantage - P CPU no PhysX 1280x1024
100%
580M +
min: 8375     avg: 8457.5     median: 8457 (12%)     max: 8540 Points
min: 3751     avg: 4064.5     median: 4064 (6%)     max: 4378 Points

Average Benchmarks Intel Core i5-580M → 100%

Average Benchmarks Intel Core i5-520UM → 73%

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)