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Intel Pentium 987 vs Intel Core i5-470UM vs Intel Core i5-540UM

Intel Pentium 987

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The Intel Pentium 987 is an Ultra Low Voltage (ULV) dual core processor for entry-level laptops. It is based on the Sandy Bridge architecture but many of the features like Turbo Boost, Virtualization (VT-x, VT-d), HyperThreading, AES or Trusted Execution are deactivated. The Pentium 987 integrates a graphics card called Intel HD Graphics that is based on the HD Graphics 2000 and clocked from 350 - 1000 MHz.

The performance of the Pentium 987 is a bit higher than a similar clocked Arrandale Pentium CPU and therefore significantly faster than a 1.3 GHz Pentium U5600.

The 17W TDP rating includes the integrated GPU and memory controller and therefore the 987 is suited for small subnotebooks.

Intel Core i5-470UM

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The Intel Core i5-470UM is a Ultra Low Voltage dual-core processor for small and light laptops. It is clocked with 1.3 - 1.8 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 deactivated for the 470UM, compared to the i7 UM CPUs.

The faster i5-560UM and i7-660UM are also clocked at 1.3 GHz but feature a higher TurboBoost frequency.

A feature of the Core i5-470UM 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 i5-470UM is faster than a similar clocked Core 2 Duo (1.3 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 1.8 GHz may not be important.

The integrated Intel Graphics Media Accelerator HD (GMA HD) graphics card is clocked 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 i5-540UM

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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).

ModelIntel Pentium 987Intel Core i5-470UMIntel Core i5-540UM
CodenameSandy BridgeArrandaleArrandale
SeriesIntel PentiumIntel Core i5Intel Core i5
Series: Core i5 Arrandale
Intel Pentium B9802.4 GHz2 / 2 cores2 MB L3
Intel Pentium B9702.3 GHz2 / 2 cores2 MB L3
Intel Pentium B9602.2 GHz2 / 2 cores2 MB L3
Intel Pentium B9502.1 GHz2 / 2 cores2 MB L3
Intel Pentium B9402 GHz2 / 2 cores2 MB L3
Intel Pentium 9971.6 GHz2 / 2 cores2 MB L3
Intel Pentium 987 « 1.5 GHz2 / 2 cores2 MB L3
Intel Pentium 9771.4 GHz2 / 2 cores2 MB L3
Intel Pentium 9671.3 GHz2 / 2 cores2 MB L3
Intel Pentium 9571.2 GHz2 / 2 cores2 MB L3
Intel Core i5-580M2.67 - 3.33 GHz2 / 4 cores3 MB L3
Intel Core i5-560M2.67 - 3.2 GHz2 / 4 cores3 MB L3
Intel Core i5-480M2.67 - 2.93 GHz2 / 4 cores3 MB L3
Intel Core i5-540M2.53 - 3.07 GHz2 / 4 cores3 MB L3
Intel Core i5-460M2.53 - 2.8 GHz2 / 4 cores3 MB L3
Intel Core i5-520M2.4 - 2.93 GHz2 / 4 cores3 MB L3
Intel Core i5-450M2.4 - 2.66 GHz2 / 4 cores3 MB L3
Intel Core i5-430M2.26 - 2.53 GHz2 / 4 cores3 MB L3
Intel Core i5-560UM1.33 - 2.13 GHz2 / 4 cores3 MB L3
Intel Core i5-470UM « 1.33 - 1.87 GHz2 / 4 cores3 MB L3
Intel Core i5-540UM1.2 - 2 GHz2 / 4 cores3 MB L3
Intel Core i5-520UM1.06 - 1.87 GHz2 / 4 cores3 MB L3
Intel Core i5-430UM1.2 - 1.73 GHz2 / 4 cores3 MB L3
Intel Core i5-580M2.67 - 3.33 GHz2 / 4 cores3 MB L3
Intel Core i5-560M2.67 - 3.2 GHz2 / 4 cores3 MB L3
Intel Core i5-480M2.67 - 2.93 GHz2 / 4 cores3 MB L3
Intel Core i5-540M2.53 - 3.07 GHz2 / 4 cores3 MB L3
Intel Core i5-460M2.53 - 2.8 GHz2 / 4 cores3 MB L3
Intel Core i5-520M2.4 - 2.93 GHz2 / 4 cores3 MB L3
Intel Core i5-450M2.4 - 2.66 GHz2 / 4 cores3 MB L3
Intel Core i5-430M2.26 - 2.53 GHz2 / 4 cores3 MB L3
Intel Core i5-560UM1.33 - 2.13 GHz2 / 4 cores3 MB L3
Intel Core i5-470UM1.33 - 1.87 GHz2 / 4 cores3 MB L3
Intel Core i5-540UM « 1.2 - 2 GHz2 / 4 cores3 MB L3
Intel Core i5-520UM1.06 - 1.87 GHz2 / 4 cores3 MB L3
Intel Core i5-430UM1.2 - 1.73 GHz2 / 4 cores3 MB L3
Clock1500 MHz1333 - 1867 MHz1200 - 2000 MHz
L1 Cache128 KB
L2 Cache512 KB512 KB512 KB
L3 Cache2 MB3 MB3 MB
Cores / Threads2 / 22 / 42 / 4
TDP17 Watt18 Watt18 Watt
Technology32 nm32 nm32 nm
max. Temp.100 °C105 °C
SocketBGA1023BGA1288BGA1288
FeaturesHD Graphics, DDR3 Memory Controller, Enhanced Speedstep, Thermal Monitoring, Execute Disable BitIntel 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 BitIntel 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 Bit
iGPUIntel HD Graphics (Sandy Bridge) (350 - 1000 MHz)
Architecturex86x86x86
$134 U.S.$250 U.S.
Announced
Manufacturerark.intel.comark.intel.comark.intel.com
FSB25002500
Transistors382+177 Million382+177 Million
Die Size81+114 mm281+114 mm2

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
100%
1 987 +
1.1 Points (1%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
100%
1 987 +
0.6 Points (14%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
100%
1 470UM +
min: 1906     avg: 1970     median: 1972.5 (12%)     max: 2022 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
100%
1 470UM +
min: 3775     avg: 3987     median: 3940 (3%)     max: 4255 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
100%
1 987 +
4467 Points (3%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
100%
1 987 +
2409 Points (3%)
wPrime 2.10 - wPrime 2.0 1024m *
100%
1 987 +
1548 s (18%)
144%
1 470UM +
min: 980     avg: 1087     median: 1072.5 (13%)     max: 1222 s
wPrime 2.10 - wPrime 2.0 32m *
100%
1 987 +
48 s (10%)
141%
1 470UM +
min: 31.5     avg: 34.7     median: 34 (7%)     max: 39.34 s
WinRAR - WinRAR 4.0
100%
1 987 +
1107 Points (2%)
TrueCrypt - TrueCrypt Serpent
100%
1 987 +
0 GB/s (1%)
TrueCrypt - TrueCrypt Twofish
100%
1 987 +
0.1 GB/s (1%)
TrueCrypt - TrueCrypt AES
100%
1 987 +
0.1 GB/s (0%)
3DMark 06 - CPU - 3DMark 06 - CPU
100%
1 987 +
1487 Points (3%)
114%
1 470UM +
min: 1602     avg: 1684     median: 1689 (4%)     max: 1755 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
100%
1 987 +
26 s (6%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
100%
1 987 +
58 s (2%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
100%
1 987 +
1332 s (6%)
102%
1 470UM +
min: 1297     avg: 1315     median: 1305 (6%)     max: 1353 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
100%
1 470UM +
20970 MIPS (10%)
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
100%
1 470UM +
16180 MFLOPS (12%)
PCMark 05 - PCMark 05 - Standard
100%
1 470UM +
4329 Points (9%)
Windows 7 Experience Index - Win7 CPU
100%
1 987 +
5.1 Points (65%)
109%
1 470UM +
min: 5.4     avg: 5.5     median: 5.6 (71%)     max: 5.6 Points
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
100%
1 987 +
3553 Points (3%)

Average Benchmarks Intel Pentium 987 → 0% n=0

Average Benchmarks Intel Core i5-470UM → 0% n=0

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

v1.33
log 17. 16:23:52

#0 ran 0s before starting gpusingle class +0s ... 0s

#1 checking url part for id 3340 +0s ... 0s

#2 checking url part for id 1242 +0s ... 0s

#3 checking url part for id 999 +0s ... 0s

#4 redirected to Ajax server, took 1755440631s time from redirect:0 +0s ... 0s

#5 did not recreate cache, as it is less than 5 days old! Created at Sat, 16 Aug 2025 05:18:17 +0200 +0s ... 0s

#6 composed specs +0.005s ... 0.005s

#7 did output specs +0s ... 0.005s

#8 getting avg benchmarks for device 3340 +0.001s ... 0.005s

#9 got single benchmarks 3340 +0.006s ... 0.011s

#10 getting avg benchmarks for device 1242 +0.001s ... 0.012s

#11 got single benchmarks 1242 +0.007s ... 0.019s

#12 getting avg benchmarks for device 999 +0s ... 0.019s

#13 got single benchmarks 999 +0.003s ... 0.022s

#14 got avg benchmarks for devices +0s ... 0.022s

#15 min, max, avg, median took s +0.014s ... 0.036s

#16 return log +0s ... 0.036s

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2023-07- 1)