Intel Core i7-3520M vs Intel Core i7-3687U

Intel Core i7-3520M

► remove from comparison Intel 3520M

The Intel Core i7-3520M is the fastest dual-core processor for laptops based on the Ivy Bridge architecture at the time of introduction in Q2 2012. Due to Hyperthreading, the two cores can handle up to four threads in parallel leading to better utilization of the CPU. Each core offers a base speed of 2.9 GHz but can dynamically increase clock rates with Turbo Boost up to 3.4 GHz (for 2 active cores) and 3.6 GHz (for 1 active core). As its Sandy-Bridge-based predecessor Core i7-2640M, it offers a 4 MB L3-Cache.

Ivy Bridge is an enhanced die shrink of the Sandy Bridge architecture with improvements on both GPU and CPU performance. The CPUs are produced in 22nm (versus 32nm Sandy Bridge CPUs) and are the first to introduce 3D transistors for increased energy efficiency when compared to similarly clocked Sandy Bridge processors. Other new features are integrated PCI Express 3.0 and  DDR3(L)-1600 support.

The performance of the Core i7-3520M is slightly above a similarly clocked Sandy Bridge processor due to the architectural improvements. As a result, overall performance is about 5 - 10 % above the old i7-2640M (see benchmarks below).

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 650 MHz up to 1250 MHz with Turbo Boost, making it one of the fastest variants.

Just like most other Ivy Bridge dual-cores, the i7-3520M is rated at a TDP of 35 W. Therefore, even smaller laptops can use the Core i7.

Intel Core i7-3687U

► remove from comparison

The Intel Core i7-3687U is the fastest ULV-processor for laptops based on the Ivy Bridge architecture at the time of introduction in Q1 2013. Due to Hyperthreading, the two cores can handle up to four threads in parallel leading to better utilization of the CPU. Each core offers a base speed of 2.1 GHz but can dynamically increase clock rates with Turbo Boost up to 3.1 GHz (for 2 active cores) and 3.3 GHz (for 1 active core). As its Sandy-Bridge-based predecessors, it offers a 4 MB L3-Cache.

Ivy Bridge is an enhanced die shrink of the Sandy Bridge architecture with improvements on both GPU and CPU performance. The CPUs are produced in 22nm (versus 32nm Sandy Bridge CPUs) and are the first to introduce 3D transistors for increased energy efficiency when compared to similarly clocked Sandy Bridge processors. Other new features are integrated PCI Express 3.0 and  DDR3(L)-1600 support.

The performance of the Core i7-3687U is slightly above a similarly clocked Sandy Bridge processor due to the architectural improvements. Therefore, and because of the higher clock speed, the old Core i7-2677M is easily outperformed.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 350 MHz up to 1200 MHz with Turbo Boost, delivering a performance comparable with an AMD Radeon HD 6620G.

The ULV-CPUs are rated at a TDP of 17 W including graphics card and memory controller.  Therefore, the CPU is suited for small laptops and ultrabooks.

Intel Core i7-3520MIntel Core i7-3687U
Intel Core i7Intel Core i7
Ivy BridgeIvy Bridge
Series: Core i7 Ivy Bridge
Intel Core i7-3940XM compare3000 - 3900 MHz4 / 88 MB
Intel Core i7-3920XM compare2900 - 3800 MHz4 / 88 MB
Intel Core i7-3840QM compare2800 - 3800 MHz4 / 88 MB
Intel Core i7-3820QM compare2700 - 3700 MHz4 / 88 MB
Intel Core i7-3740QM compare2700 - 3700 MHz4 / 86 MB
Intel Core i7-3720QM compare2600 - 3600 MHz4 / 86 MB
Intel Core i7-3635QM compare2400 - 3400 MHz4 / 86 MB
Intel Core i7-3630QM compare2400 - 3400 MHz4 / 86 MB
Intel Core i7-3615QM compare2300 - 3300 MHz4 / 86 MB
Intel Core i7-3610QM compare2300 - 3300 MHz4 / 86 MB
Intel Core i7-3632QM compare2200 - 3200 MHz4 / 86 MB
Intel Core i7-3612QM compare2100 - 3100 MHz4 / 86 MB
Intel Core i7-3540M compare3000 - 3700 MHz2 / 44 MB
» Intel Core i7-3520M2900 - 3600 MHz2 / 44 MB
Intel Core i7-3687U2100 - 3300 MHz2 / 44 MB
Intel Core i7-3667U compare2000 - 3200 MHz2 / 44 MB
Intel Core i7-3537U compare2000 - 3100 MHz2 / 44 MB
Intel Core i7-3517U compare1900 - 3000 MHz2 / 44 MB
Intel Core i7-3689Y compare1500 - 2600 MHz2 / 44 MB
Intel Core i7-3940XM compare3000 - 3900 MHz4 / 88 MB
Intel Core i7-3920XM compare2900 - 3800 MHz4 / 88 MB
Intel Core i7-3840QM compare2800 - 3800 MHz4 / 88 MB
Intel Core i7-3820QM compare2700 - 3700 MHz4 / 88 MB
Intel Core i7-3740QM compare2700 - 3700 MHz4 / 86 MB
Intel Core i7-3720QM compare2600 - 3600 MHz4 / 86 MB
Intel Core i7-3635QM compare2400 - 3400 MHz4 / 86 MB
Intel Core i7-3630QM compare2400 - 3400 MHz4 / 86 MB
Intel Core i7-3615QM compare2300 - 3300 MHz4 / 86 MB
Intel Core i7-3610QM compare2300 - 3300 MHz4 / 86 MB
Intel Core i7-3632QM compare2200 - 3200 MHz4 / 86 MB
Intel Core i7-3612QM compare2100 - 3100 MHz4 / 86 MB
Intel Core i7-3540M compare3000 - 3700 MHz2 / 44 MB
Intel Core i7-3520M2900 - 3600 MHz2 / 44 MB
» Intel Core i7-3687U2100 - 3300 MHz2 / 44 MB
Intel Core i7-3667U compare2000 - 3200 MHz2 / 44 MB
Intel Core i7-3537U compare2000 - 3100 MHz2 / 44 MB
Intel Core i7-3517U compare1900 - 3000 MHz2 / 44 MB
Intel Core i7-3689Y compare1500 - 2600 MHz2 / 44 MB
2900 - 3600 MHz2100 - 3300 MHz
128 KB128 KB
512 KB512 KB
4 MB4 MB
2 / 42 / 4
35 17
22 22
105 °C105 °C
BGA1023, PGA988BGA1023
HD Graphics 4000, DDR3-1600 Memory Controller, HyperThreading, AVX, Quick Sync, VirtualizationHD Graphics 4000 (350-1200 MHz), Turbo Boost 2.0, Hyper-Threading, Virtualization VT-x, Virtualization for Directed I/O (VT-d), Trusted Execution, AES, Intel 64, Anti-Theft, My WiFi, Idle States, Enhanced SpeedStep, Thermal Monitorin, Execute Disable Bit
iGPUIntel HD Graphics 4000 (650 - 1250 MHz)Intel HD Graphics 4000 (350 - 1200 MHz)
$346 U.S.
Intel Core i7 3520MIntel Core i7 3687U

Benchmarks

Cinebench R11.5 - CPU Multi 64Bit
100%
1 3520M +
min: 3     avg: 3.3     median: 3.4 (8%)     max: 3.44 Points
Cinebench R11.5 - CPU Single 64Bit
100%
1 3520M +
min: 1.41     avg: 1.4     median: 1.5 (57%)     max: 1.47 Points
Cinebench R10 - Rendering Single 32Bit
100%
1 3520M +
min: 4408     avg: 4813     median: 4855 (50%)     max: 4903 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
100%
1 3520M +
min: 9112     avg: 10167     median: 10467 (18%)     max: 10605 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
100%
1 3520M +
min: 11581     avg: 12766     median: 12889.5 (15%)     max: 13151 Points
Cinebench R10 - Rendering Single CPUs 64Bit
100%
1 3520M +
min: 6029     avg: 6128     median: 6146.5 (54%)     max: 6203 Points
wPrime 2.10 - 1024m *
100%
1 3520M +
min: 456     avg: 493     median: 492.1 (6%)     max: 569.853 seconds
wPrime 2.10 - 32m *
100%
1 3520M +
min: 14.4     avg: 15.5     median: 15.4 (3%)     max: 17.097 seconds
WinRAR - Result
100%
1 3520M +
min: 2661     avg: 2863     median: 2715 (28%)     max: 3527 KB/s
X264 HD Benchmark 4.0 - Pass 2
100%
1 3520M +
min: 6.7     avg: 16.1     median: 18.9 (11%)     max: 19.44 fps
X264 HD Benchmark 4.0 - Pass 1
100%
1 3520M +
min: 35.1     avg: 86.2     median: 98.6 (34%)     max: 101.8 fps
TrueCrypt - Serpent Mean 100MB
100%
1 3520M +
min: 0.164     avg: 0.2     median: 0.2 (0%)     max: 0.176 GB/s
TrueCrypt - Twofish Mean 100MB
100%
1 3520M +
min: 0.249     avg: 0.3     median: 0.3 (0%)     max: 0.302 GB/s
TrueCrypt - AES Mean 100MB
100%
1 3520M +
min: 1.2     avg: 1.6     median: 1.7 (0%)     max: 1.7 GB/s
3DMark 06 - CPU - CPU Score
100%
1 3520M +
min: 3528     avg: 4086     median: 4134 (28%)     max: 4212 Points
Super Pi mod 1.5 XS 1M - 1M *
100%
1 3520M +
min: 10     avg: 10.3     median: 10 (2%)     max: 10.94 Seconds
Super Pi mod 1.5 XS 2M - 2M *
100%
1 3520M +
min: 24     avg: 24.8     median: 25 (1%)     max: 25.866 Seconds
Super Pi Mod 1.5 XS 32M - 32M *
100%
1 3520M +
min: 565     avg: 591     median: 594 (3%)     max: 612 Seconds
SiSoft Sandra Dhrystone (MIPS) - Dhrystone
100%
1 3520M +
min: 55800     avg: 63808     median: 67130 (32%)     max: 69140 MIPS
SiSoft Sandra Whetstone (MFLOPS) - Whetstone
100%
1 3520M +
min: 41450     avg: 42502     median: 42450 (33%)     max: 44032 MFLOPS
Windows 7 Experience Index - Processor
100%
1 3520M +
7.2 points (92%)
3DMark Vantage - P CPU no PhysX 1280x1024
100%
1 3520M +
min: 9277     avg: 11188     median: 11511 (16%)     max: 11788 Points
3DMark 11 - Performance Physics 1280x720
100%
1 3520M +
min: 3582     avg: 4275     median: 4466 (20%)     max: 4774 points
3DMark - Ice Storm Standard Physics 1280x720
100%
1 3520M +
39221 Points (25%)
3DMark - Cloud Gate Standard Physics 1280x720
100%
1 3520M +
3393 Points (9%)
3DMark - Fire Strike Physics 1920x1080
100%
1 3520M +
4772 Points (15%)

Average Benchmarks Intel Core i7-3520M → NAN% n=

- 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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Redaktion, 2017-09- 8 (Update: 2017-09-11)