Intel Core i7-3520M vs Intel Core i7-3635QM

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 i7-3635QM

► remove Intel 3635QM

The Intel Core i7-3635QM is a fast quad-core processor for laptops based on the Ivy Bridge architecture. Due to Hyperthreading, the four cores can handle up to eight threads in parallel leading to better utilization of the CPU. Each core offers a base speed of 2.4 GHz but can dynamically increase clock rates with Turbo Boost up to 3.2 GHz (for 4 active cores), 3.3 GHz (for 2 active cores) and 3.4 GHz (for 1 active core). In contrast to the 3630QM, the 3635QM has a different package (BGA) and a slightly higher GPU clock.

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 i7-3635QM is slightly above a similarly clocked Sandy Bridge processor due to slight architectural improvements. As a result, overall performance is similar to the fastest Sandy Bridge model, the Core i7-2960XM.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 650 MHz up to 1200 MHz with Turbo Boost, making it one of the faster variants.

As with most quad-core Ivy Bridge models, the Core i7-3635QM is specified at a TDP of 45 Watts including graphics card and memory controller. Therefore, the CPU is well-suited for laptops 15-inches or greater.

Intel Core i7-3520MIntel Core i7-3635QM
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 i7-3635QM2400 - 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 i7-3667U (compare)2000 - 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 i7-3635QM2400 - 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 i7-3667U (compare)2000 - 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
2900 - 3600 MHz2400 - 3400 MHz
128 KB256 KB
512 KB1 MB
4 MB6 MB
2 / 44 / 8
35 45
22 22
105 °C105 °C
BGA1023, PGA988BGA
HD Graphics 4000, DDR3-1600 Memory Controller, HyperThreading, AVX, Quick Sync, VirtualizationHD Graphics 4000, DDR3(L)-1600 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization
iGPUIntel HD Graphics 4000 (650 - 1250 MHz)Intel HD Graphics 4000 (650 - 1200 MHz)
$346 U.S.
Intel Core i7 3520MIntel Core i7 3635QM
1400
160 mm2

Cinebench R11.5 - CPU Multi 64Bit
min: 3     avg: 3.3     median: 3.4 (92%)     max: 3.44 Points
min: 6.38     avg: 6.4     median: 6.4 (177%)     max: 6.47 Points
Cinebench R11.5 - CPU Single 64Bit
min: 1.41     avg: 1.4     median: 1.5 (95%)     max: 1.47 Points
min: 1.37     avg: 1.4     median: 1.4 (90%)     max: 1.39 Points
Cinebench R10 - Rendering Single 32Bit
min: 4408     avg: 4805.5     median: 4846 (82%)     max: 4903 Points
min: 4600     avg: 4648.3     median: 4660 (79%)     max: 4685 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 9112     avg: 10194.6     median: 10456.5 (87%)     max: 10605 Points
min: 17688     avg: 17854.7     median: 17865 (149%)     max: 18011 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 11581     avg: 12750.3     median: 12866 (96%)     max: 13151 Points
min: 21471     avg: 21960.8     median: 22047.5 (165%)     max: 22277 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 6029     avg: 6124.3     median: 6143 (94%)     max: 6203 Points
min: 5819     avg: 5884.5     median: 5891 (90%)     max: 5937 Points
wPrime 2.0x - 1024m *
min: 456     avg: 493.2     median: 492.1 (6%)     max: 569.853 seconds
min: 267.2     avg: 301.2     median: 276.5 (3%)     max: 359.933 seconds
wPrime 2.0x - 32m *
min: 14.4     avg: 15.5     median: 15.4 (3%)     max: 17.097 seconds
min: 8.4     avg: 9.6     median: 8.9 (2%)     max: 11.424 seconds
WinRAR - Result
min: 2661     avg: 2862.9     median: 2715 (57%)     max: 3527 KB/s
min: 3855     avg: 4199.5     median: 4199.5 (89%)     max: 4544 KB/s
X264 HD Benchmark 4.0 - Pass 2
min: 6.7     avg: 16.1     median: 18.9 (83%)     max: 19.44 fps
min: 35.28     avg: 35.4     median: 35.4 (156%)     max: 35.6 fps
X264 HD Benchmark 4.0 - Pass 1
min: 35.1     avg: 86.2     median: 98.6 (91%)     max: 101.8 fps
min: 134.48     avg: 138     median: 138 (127%)     max: 141.6 fps
TrueCrypt - Serpent Mean 100MB
min: 0.164     avg: 0.2     median: 0.2 (18%)     max: 0.176 GB/s
min: 0.14     avg: 0.2     median: 0.2 (24%)     max: 0.327 GB/s
TrueCrypt - Twofish Mean 100MB
min: 0.249     avg: 0.3     median: 0.3 (46%)     max: 0.302 GB/s
min: 0.454     avg: 0.5     median: 0.5 (78%)     max: 0.549 GB/s
TrueCrypt - AES Mean 100MB
min: 1.2     avg: 1.6     median: 1.7 (77%)     max: 1.7 GB/s
min: 3     avg: 3.1     median: 3.1 (139%)     max: 3.1 GB/s
3DMark 06 - CPU
min: 3528     avg: 4090     median: 4128 (88%)     max: 4212 Points
min: 6432     avg: 6483.3     median: 6492 (138%)     max: 6517 Points
Super Pi mod 1.5 XS 1M *
min: 10     avg: 10.3     median: 10 (2%)     max: 10.94 Seconds
min: 11.16     avg: 11.3     median: 11.2 (2%)     max: 11.7 Seconds
Super Pi mod 1.5 XS 2M *
min: 24     avg: 24.8     median: 25 (1%)     max: 25.866 Seconds
min: 25.829     avg: 26.1     median: 25.8 (1%)     max: 26.5 Seconds
Super Pi Mod 1.5 XS 32M *
min: 565     avg: 590.6     median: 594 (3%)     max: 612 Seconds
min: 624     avg: 626.1     median: 625.3 (3%)     max: 629.05 Seconds
SiSoft Sandra Dhrystone (MIPS)
min: 55800     avg: 63808     median: 67130 (104%)     max: 69140 MIPS
min: 110140     avg: 118820     median: 118820 (184%)     max: 127500 MIPS
SiSoft Sandra Whetstone (MFLOPS)
min: 41450     avg: 42502.4     median: 42450 (83%)     max: 44032 MFLOPS
min: 80710     avg: 80855     median: 80855 (158%)     max: 81000 MFLOPS
Windows 7 Experience Index - Processor
7.2 points (95%)
3DMark Vantage - P CPU no PhysX 1280x1024
min: 9277     avg: 11216.9     median: 11510 (47%)     max: 11788 Points
min: 20530     avg: 21870.5     median: 22225.5 (92%)     max: 22501 Points
3DMark 11 - Performance Physics 1280x720
min: 3582     avg: 4290.7     median: 4452 (95%)     max: 4774 points
min: 6023     avg: 6731.8     median: 7054 (151%)     max: 7235 points
3DMark - Ice Storm Standard Physics 1280x720
39221 Points (25%)
min: 31200     avg: 33452.3     median: 34461 (22%)     max: 34696 Points
3DMark - Cloud Gate Standard Physics 1280x720
3393 Points (95%)
min: 5633     avg: 5721.7     median: 5740 (161%)     max: 5792 Points
3DMark - Fire Strike Physics 1920x1080
4772 Points (51%)
min: 7937     avg: 8037.3     median: 7965 (84%)     max: 8210 Points
Geekbench 2 - 32 Bit - Stream
8423 Points (81%)
Geekbench 2 - 32 Bit - Memory
7446 Points (90%)
Geekbench 2 - 32 Bit - Floating Point
11831 Points (56%)
Geekbench 2 - 32 Bit - Integer
10805 Points (114%)
Geekbench 2 - 32 Bit - Total Score
10254 Points (83%)
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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)