Intel Core i7-3667U vs Intel Core i7-3520M

Intel Core i7-3667U

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The Intel Core i7-3667U is the fastest ULV-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 2.0 GHz but can dynamically increase clock rates with Turbo Boost up to 3.0 GHz (for 2 active cores) and 3.2 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 i7-3667U is slightly above a similarly clocked Sandy Bridge processor due to the architectural improvements. Therefore, and because of the higher clock speed, the Core i7-2677M is easily outperformed by 10 to 15%.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 350 MHz up to 1150 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 i7-3520M

► remove 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 i7-3667UIntel Core i7-3520M
Intel Core i7Intel Core i7
Ivy BridgeIvy Bridge
: Core i7 Ivy Bridge
Intel Core i7-3940XM (compare)3000 - 3900 MHz4 / 88 MB
Intel Core i7-3920XM (compare)2900 - 3800 MHz4 / 88 MB
Intel Core i7-3840QM (compare)2800 - 3800 MHz4 / 88 MB
Intel Core i7-3820QM (compare)2700 - 3700 MHz4 / 88 MB
Intel Core i7-3740QM (compare)2700 - 3700 MHz4 / 86 MB
Intel Core i7-3720QM (compare)2600 - 3600 MHz4 / 86 MB
Intel Core i7-3635QM (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-3630QM (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-3615QM (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-3610QM (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-3632QM (compare)2200 - 3200 MHz4 / 86 MB
Intel Core i7-3612QM (compare)2100 - 3100 MHz4 / 86 MB
Intel Core i7-3540M (compare)3000 - 3700 MHz2 / 44 MB
Intel Core i7-3520M2900 - 3600 MHz2 / 44 MB
Intel Core i7-3687U (compare)2100 - 3300 MHz2 / 44 MB
» Intel Core i7-3667U2000 - 3200 MHz2 / 44 MB
Intel Core i7-3537U (compare)2000 - 3100 MHz2 / 44 MB
Intel Core i7-3517U (compare)1900 - 3000 MHz2 / 44 MB
Intel Core i7-3689Y (compare)1500 - 2600 MHz2 / 44 MB
Intel Core i7-3940XM (compare)3000 - 3900 MHz4 / 88 MB
Intel Core i7-3920XM (compare)2900 - 3800 MHz4 / 88 MB
Intel Core i7-3840QM (compare)2800 - 3800 MHz4 / 88 MB
Intel Core i7-3820QM (compare)2700 - 3700 MHz4 / 88 MB
Intel Core i7-3740QM (compare)2700 - 3700 MHz4 / 86 MB
Intel Core i7-3720QM (compare)2600 - 3600 MHz4 / 86 MB
Intel Core i7-3635QM (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-3630QM (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-3615QM (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-3610QM (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-3632QM (compare)2200 - 3200 MHz4 / 86 MB
Intel Core i7-3612QM (compare)2100 - 3100 MHz4 / 86 MB
Intel Core i7-3540M (compare)3000 - 3700 MHz2 / 44 MB
» Intel Core i7-3520M2900 - 3600 MHz2 / 44 MB
Intel Core i7-3687U (compare)2100 - 3300 MHz2 / 44 MB
Intel Core i7-3667U2000 - 3200 MHz2 / 44 MB
Intel Core i7-3537U (compare)2000 - 3100 MHz2 / 44 MB
Intel Core i7-3517U (compare)1900 - 3000 MHz2 / 44 MB
Intel Core i7-3689Y (compare)1500 - 2600 MHz2 / 44 MB
2000 - 3200 MHz2900 - 3600 MHz
128 KB128 KB
512 KB512 KB
4 MB4 MB
2 / 42 / 4
17 35
22 22
105 °C105 °C
BGA1023BGA1023, PGA988
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 BitHD Graphics 4000, DDR3-1600 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization
iGPUIntel HD Graphics 4000 (350 - 1150 MHz)Intel HD Graphics 4000 (650 - 1250 MHz)
$346 U.S.$346 U.S.
Intel Core i7 3667UIntel Core i7 3520M

Cinebench R11.5 - CPU Multi 64Bit
min: 2.55     avg: 2.8     median: 2.9 (11%)     max: 2.96 Points
min: 3     avg: 3.3     median: 3.4 (12%)     max: 3.44 Points
Cinebench R11.5 - CPU Single 64Bit
min: 1.3     avg: 1.3     median: 1.3 (54%)     max: 1.33 Points
min: 1.41     avg: 1.4     median: 1.5 (60%)     max: 1.47 Points
Cinebench R10 - Rendering Single 32Bit
min: 3975     avg: 4215     median: 4215 (46%)     max: 4455 Points
min: 4408     avg: 4813.4     median: 4855 (53%)     max: 4903 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 8290     avg: 8809.5     median: 8809.5 (18%)     max: 9329 Points
min: 9112     avg: 10166.7     median: 10467 (21%)     max: 10605 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 10253     avg: 11057.2     median: 11294.5 (15%)     max: 11387 Points
min: 11581     avg: 12766     median: 12889.5 (17%)     max: 13151 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 5363     avg: 5524     median: 5563 (54%)     max: 5607 Points
min: 6029     avg: 6127.8     median: 6146.5 (60%)     max: 6203 Points
wPrime 2.0x - 1024m *
min: 529     avg: 591.2     median: 569.7 (7%)     max: 674.715 seconds
min: 456     avg: 493.2     median: 492.1 (6%)     max: 569.853 seconds
wPrime 2.0x - 32m *
min: 16.27     avg: 17.4     median: 17.8 (4%)     max: 18.096 seconds
min: 14.4     avg: 15.5     median: 15.4 (3%)     max: 17.097 seconds
WinRAR - Result
min: 2413     avg: 2474     median: 2474 (29%)     max: 2535 KB/s
min: 2661     avg: 2862.9     median: 2715 (32%)     max: 3527 KB/s
X264 HD Benchmark 4.0 - Pass 2
min: 14.54     avg: 15.4     median: 15.4 (0%)     max: 16.32 fps
min: 6.7     avg: 16.1     median: 18.9 (0%)     max: 19.44 fps
X264 HD Benchmark 4.0 - Pass 1
min: 86.29     avg: 87     median: 87 (32%)     max: 87.72 fps
min: 35.1     avg: 86.2     median: 98.6 (37%)     max: 101.8 fps
TrueCrypt - Serpent Mean 100MB
0.2 GB/s (8%)
min: 0.164     avg: 0.2     median: 0.2 (9%)     max: 0.176 GB/s
TrueCrypt - Twofish Mean 100MB
min: 0.259     avg: 0.3     median: 0.3 (9%)     max: 0.265 GB/s
min: 0.249     avg: 0.3     median: 0.3 (10%)     max: 0.302 GB/s
TrueCrypt - AES Mean 100MB
min: 1.4     avg: 1.5     median: 1.5 (8%)     max: 1.5 GB/s
min: 1.2     avg: 1.6     median: 1.7 (9%)     max: 1.7 GB/s
3DMark 06 - CPU
min: 3393     avg: 3566.8     median: 3594.5 (25%)     max: 3685 Points
min: 3528     avg: 4086.2     median: 4134 (29%)     max: 4212 Points
Super Pi mod 1.5 XS 1M *
min: 11     avg: 11.5     median: 11.4 (2%)     max: 12 Seconds
min: 10     avg: 10.3     median: 10 (2%)     max: 10.94 Seconds
Super Pi mod 1.5 XS 2M *
min: 27     avg: 27.4     median: 27.2 (1%)     max: 28 Seconds
min: 24     avg: 24.8     median: 25 (1%)     max: 25.866 Seconds
Super Pi Mod 1.5 XS 32M *
min: 640     avg: 647.6     median: 647.7 (3%)     max: 655 Seconds
min: 565     avg: 590.6     median: 594 (3%)     max: 612 Seconds
SiSoft Sandra Dhrystone (MIPS)
52000 MIPS (25%)
min: 55800     avg: 63808     median: 67130 (32%)     max: 69140 MIPS
SiSoft Sandra Whetstone (MFLOPS)
36570 MFLOPS (28%)
min: 41450     avg: 42502.4     median: 42450 (33%)     max: 44032 MFLOPS
Windows 7 Experience Index - Processor
7.1 points (91%)
7.2 points (92%)
3DMark Vantage - P CPU no PhysX 1280x1024
min: 8295     avg: 9039     median: 9222 (15%)     max: 9600 Points
min: 9277     avg: 11188.2     median: 11511 (19%)     max: 11788 Points
3DMark 11 - Performance Physics 1280x720
min: 2618     avg: 3129     median: 3231 (17%)     max: 3436 points
min: 3582     avg: 4274.6     median: 4466 (24%)     max: 4774 points
3DMark - Ice Storm Standard Physics 1280x720
39221 Points (25%)
3DMark - Cloud Gate Standard Physics 1280x720
3393 Points (9%)
3DMark - Fire Strike Physics 1920x1080
4772 Points (18%)
Sunspider - 0.9.1 Total Score *
128 ms (1%)

Average Benchmarks Intel Core i7-3667U → 100%

Average Benchmarks Intel Core i7-3520M → 111%

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* 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)