Intel Core i5-520UM

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).

SeriesIntel Core i5
CodenameArrandale
Clock Rate1060 - 1866 MHz
Front Side Bus2500 MHz
Level 2 Cache512 KB
Level 3 Cache3072 KB
Number of Cores / Threads2 / 4
Max. Power Consumption (TDP = Thermal Design Power)18 Watt
Transistor Count382+177 Million
Manufacturing Technology32 nm
Die Size81+114 mm2
Max. Temperature105 °C
SocketBGA1288
FeaturesTurbo Boost (1.86 GHz max), Hyper Threading, Enhanced Speedstep, integrated GMA HD 166-500MHz
64 Bit64 Bit support
Hardware VirtualizationVT-x
Starting Price $241 U.S.
Announcement Date01/04/2010
Product Link (external)Intel Core i5 520UM

CPU Benchmarks

3DMark 06 - CPU:
0% 100%
min: 982     avg: 1429.2 (14.83%)     max: 1718 Points
Super Pi mod 1.5 XS 1M:
0% 100%
min: 24     avg: 26.7 (96.11%)     max: 31 Seconds*
Super Pi mod 1.5 XS 2M:
0% 100%
min: 56     avg: 62.3 (98.21%)     max: 73 Seconds*
Super Pi Mod 1.5 XS 32M:
0% 100%
min: 1303     avg: 1439.3 (93.66%)     max: 1674 Seconds*
PCMark 05: Standard 1024x768
0% 100%
min: 2848     avg: 3571 (18.88%)     max: 3940 Points
PCMark Vantage: Result 1024x768
0% 100%
min: 2679     avg: 4049.3 (14.24%)     max: 5457 Points
Cinebench R10: Rendering Single 32Bit
0% 100%
min: 1471     avg: 1981.3 (29.58%)     max: 2569 Points
Cinebench R10: Rendering Multiple CPUs 32Bit
0% 100%
min: 2785     avg: 3670.3 (13.45%)     max: 4340 Points
Cinebench R10: Rendering Multiple CPUs 64Bit
0% 100%
min: 3946     avg: 4599.5 (10.45%)     max: 5187 Points
Cinebench R10: Rendering Single CPUs 64Bit
0% 100%
min: 2263     avg: 2561.3 (10.19%)     max: 3135 Points
3DMark Vantage: P CPU no PhysX 1280x1024
0% 100%
min: 3751     avg: 4064.5 (7.15%)     max: 4378 Points
wPrime 2.0x: 32m
0% 100%
min: 31.8     avg: 35.2 (93.79%)     max: 38.5 seconds*
wPrime 2.0x: 1024m
0% 100%
min: 995     avg: 1110 (88.24%)     max: 1224.9 seconds*
Windows 7 Experience Index: Processor
0% 100%
min: 3.9     avg: 4.7 (50.79%)     max: 5.4 points
Cinebench R11.5: CPU Multi 64Bit
0% 100%
min: 1.02     avg: 1.2 (8.23%)     max: 1.33 Points
- Range of benchmarks for this CPU
- Average benchmark score

Reviews for the Intel Core i5 520UM processor

Acer Aspire 1830T-52U4G32n (Intel Graphics Media Accelerator (GMA) HD Graphics, 11.6")
» Review Acer Aspire 1830T Subnotebook - Review
» Acer Aspire 1830T-52U4G32n - External Review

Acer Aspire 1830T-52U4G32nk (Intel Graphics Media Accelerator (GMA) HD Graphics, 11.6")
» Acer Aspire 1830T-52U4G32nk - External Review

Alienware M11x R2 (NVIDIA GeForce GT 335M, 11.6")
» Review Alienware M11x R2 Subnotebook - Review
» Alienware M11x R2 - External Review

Asus PL30JT-RO030V (NVIDIA GeForce 310M, 13.3")
» Asus PL30JT-RO030V - External Review

Asus PL30JT-RO030X (NVIDIA GeForce 310M, 13.3")
» Review Asus PL30JT-RO030X Subnotebook - Review
» Asus PL30JT-RO030X - External Review

Asus PL80J (NVIDIA GeForce 310M, 14.0")
» Asus PL80J - External Review

Asus UL30JT (NVIDIA GeForce 310M, 13.3")
» Asus UL30JT - External Review

Lenovo IdeaPad U160 (Intel Graphics Media Accelerator (GMA) HD Graphics, 11.6")
» Review Lenovo IdeaPad U160 Subnotebook - Review
» Lenovo IdeaPad U160 - External Review

MSI X360 (Intel Graphics Media Accelerator (GMA) 4500MHD, 13.0")
» MSI X360 - External Review

Packard Bell EasyNote Butterfly S (NVIDIA GeForce 310M, 13.3")
» Review Packard Bell EasyNote Butterfly S 520UM Subnotebook - Review

Sony VAIO VPCEC2A4E/BI (ATI Mobility Radeon HD 5650, 17.3")
» Sony VAIO VPCEC2A4E/BI - External Review

» Mobile CPU Comparison
Comparison of all mobile CPU series

» Mobile Processors - Benchmarklist
Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series Intel Core i5

» Intel Core i5 4340M
   2.9 GHz / 0.5 MB + 3 MB
» Intel Core i5 4330M
   2.8 GHz / 0.5 MB + 3 MB
» Intel Core i5 4200H
   2.8 GHz / 0.5 MB + 3 MB
» Intel Core i5 4310M
   2.7 GHz / 0.5 MB + 3 MB
» Intel Core i5 4400E
   2.7 GHz / 0.5 MB + 3 MB
» Intel Core i5 4300M
   2.6 GHz / 0.5 MB + 3 MB
» Intel Core i5 3380M
   2.9 GHz / 0.5 MB + 3 MB
» Intel Core i5 3360M
   2.8 GHz / 0.5 MB + 3 MB
» Intel Core i5 4200M
   2.5 GHz / 0.5 MB + 3 MB
» Intel Core i5 3340M
   2.7 GHz / 0.5 MB + 3 MB
» Intel Core i5 4288U
   2.6 GHz / 0.5 MB + 3 MB
» Intel Core i5 3320M
   2.6 GHz / 0.5 MB + 3 MB
» Intel Core i5 4258U
   2.4 GHz / 0.5 MB + 3 MB
» Intel Core i5 3230M
   2.6 GHz / 0.5 MB + 3 MB
» Intel Core i5 3210M
   2.5 GHz / 0.5 MB + 3 MB
» Intel Core i5 2540M
   2.6 GHz / 0.5 MB + 3 MB
» Intel Core i5 4310U
   2 GHz / 0.5 MB + 3 MB
» Intel Core i5 4360U
   1.5 GHz / 0.5 MB + 3 MB
» Intel Core i5 4300U
   1.9 GHz / 0.5 MB + 3 MB
» Intel Core i5 4350U
   1.4 GHz / 0.5 MB + 3 MB
» Intel Core i5 2520M
   2.5 GHz / 0.5 MB + 3 MB
» Intel Core i5 2450M
   2.5 GHz / 0.5 MB + 3 MB
» Intel Core i5 580M
   2.67 GHz / 0.5 MB + 3 MB
» Intel Core i5 2435M
   2.4 GHz / 0.5 MB + 3 MB
» Intel Core i5 2430M
   2.4 GHz / 0.5 MB + 3 MB
» Intel Core i5 2415M
   2.3 GHz / 0.5 MB + 3 MB
» Intel Core i5 2410M
   2.3 GHz / 0.5 MB + 3 MB
» Intel Core i5 3437U
   1.9 GHz / 0.5 MB + 3 MB
» Intel Core i5 560M
   2.67 GHz / 0.5 MB + 3 MB
» Intel Core i5 3427U
   1.8 GHz / 0.5 MB + 3 MB
» Intel Core i5 4402E
   1.6 GHz / 0.5 MB + 3 MB
» Intel Core i5 4200U
   1.6 GHz / 0.5 MB + 3 MB
» Intel Core i5 4250U
   1.3 GHz / 0.5 MB + 3 MB
» Intel Core i5 480M
   2.67 GHz / 0.5 MB + 3 MB
» Intel Core i5 540M
   2.53 GHz / 0.5 MB + 3 MB
» Intel Core i5 460M
   2.53 GHz / 0.5 MB + 3 MB
» Intel Core i5 3337U
   1.8 GHz / 0.5 MB + 3 MB
» Intel Core i5 520M
   2.4 GHz / 0.5 MB + 3 MB
» Intel Core i5 450M
   2.4 GHz / 0.5 MB + 3 MB
» Intel Core i5 3317U
   1.7 GHz / 0.5 MB + 3 MB
» Intel Core i5 430M
   2.26 GHz / 0.5 MB + 3 MB
» Intel Core i5 4300Y
   1.6 GHz / 0.5 MB + 3 MB
» Intel Core i5 4302Y
   1.6 GHz / 0.5 MB + 3 MB
» Intel Core i5 2557M
   1.7 GHz / 0.5 MB + 3 MB
» Intel Core i5 3439Y
   1.5 GHz / 0.5 MB + 3 MB
» Intel Core i5 4202Y
   1.6 GHz / 0.5 MB + 3 MB
» Intel Core i5 4210Y
   1.5 GHz / 0.5 MB + 3 MB
» Intel Core i5 2467M
   1.6 GHz / 0.5 MB + 3 MB
» Intel Core i5 3339Y
   1.5 GHz / 0.5 MB + 3 MB
» Intel Core i5 4200Y
   1.4 GHz / 0.5 MB + 3 MB
» Intel Core i5 2537M
   1.4 GHz / 0.5 MB + 3 MB
» Intel Core i5 560UM
   1.33 GHz / 0.5 MB + 3 MB
» Intel Core i5 470UM
   1.33 GHz / 0.5 MB + 3 MB
» Intel Core i5 540UM
   1.2 GHz / 0.5 MB + 3 MB
» Intel Core i5 520UM
   1.06 GHz / 0.5 MB + 3 MB
» Intel Core i5 430UM
   1.2 GHz / 0.5 MB + 3 MB

Surrounding CPUs

- AMD Turion 64 X2 TL-64
   2.2 GHz / 1 MB
- Intel Core 2 Duo SL9300
   1.6 GHz / 6 MB
- Intel Core 2 Duo T5600
   1.83 GHz / 2 MB
- AMD Athlon II M300
   2 GHz / 1 MB
- AMD Turion X2 Ultra ZM-80
   2.1 GHz / 2 MB
» Intel Core i5 520UM
   1.06 GHz / 0.5 MB + 3 MB
+ Intel Celeron J1750
   2.41 GHz / 1024 KB
+ NVIDIA Tegra K1
   2.3 GHz / 2048 KB
+ AMD Athlon X2 QL-65
   2.1 GHz / 1024 KB
+ AMD Athlon X2 QL-64
   2.1 GHz / 1024 KB
+ Intel Celeron N2910
   1.6 GHz / 2048 KB
> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Notebook Processors > Intel Core i5 520UM Notebook Processor
Author: Klaus Hinum (Update: 2012-05-26)