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Intel Core i7-3520M vs Intel Core i5-7287U vs Intel Core i7-3820QM

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 i5-7287U

► remove from comparison Intel i5-7287U

The Intel Core i5-7287U is a fast dual-core SoC for notebooks based on the Kaby Lake architecture and was announced in January 2017. The CPU has two processor cores clocked at 3.3-3.7 GHz (two cores also up to 3.7 GHz). The processor can execute up to four threads simultaneously thanks to Hyper Threading. It is also equipped with an Intel Iris Plus Graphics 650 GPU with 64 MB eDRAM, a dual-channel memory controller (DDR4) as well as VP9 and H.265 video decoding as well as encoding. The chip is still manufactured in a 14nm process with FinFET transistors.

Architecture

Intel basically uses the same micro architecture compared to Skylake, so the per-MHz performance does not differ. The manufacturer only reworked the Speed Shift technology for faster dynamic adjustments of voltages and clocks, and the improved 14nm process allows much higher frequencies combined with better efficiency than before.

Performance

The performance of the 28-Watt CPU should be on par with the Core i7-7560U (2.4-3.8 GHz, also 64 MB eDRAM, 15 Watts), where the Turbo Boost is usually shorter compared to the 7287U due to the lower TDP. This means the i5 is still one of the faster dual-core processors and should be sufficient for most scenarios. Some games might still require a real quad-core processor and therefore nit run perfectly on the dual-core processor, despite Hyper Threading.

Graphics

The integrated Intel Iris Plus 650 Graphics is the GT3e model of the Kaby Lake GPU (Intel Gen. 9.5). It has 48 Execution Units running at 300-1100 MHz and the performance is comparable to a GeForce 920MX thanks to fast eDRAM cache. However, there aren't any significant improvements compared to the old Iris Pro 550, so modern games can often not be played smoothly or only at the lowest or medium settings, respectively.

Contrary to Skylake, Kaby lake now also supports H.265/HEVC Main 10 with a 10-bit color depth as well as Google's VP9 codec. The dual-core Kaby Lake processors announced in January should also support HDCP 2.2.

Power Consumption

The chip is manufactured in an improved 14nm process with FinFET transistors, which improves the efficiency even further. Intel specifies the TDP with 28 Watts, which can be reduced to 23 Watts (cTDP Down) depending on the usage scenario. The TDP is pretty high compared to the common 15-Watt TDP for dual-core processors, but allows a better utilization of CPU and GPU Turbo.

Intel Core i7-3820QM

► remove from comparison Intel 3820QM

The Intel Core i7-3820QM 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 2.7 GHz but can dynamically increase clock rates with Turbo Boost up to 3.5 GHz (for 4 active cores), 3.6 GHz (for 2 active cores) and 3.7 GHz (for 1 active core). Furthermore, the CPU offers 8 MB Last Level 3 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 i7-3820QM is slightly above a similarly clocked Sandy Bridge processor due to slight architectural improvements. As a result, overall performance is clearly higher than the former fastest model, the Core i7-2920XM.

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 faster variants.

As with most quad-core Ivy Bridge models, the Core i7-3820QM 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.

ModelIntel Core i7-3520MIntel Core i5-7287UIntel Core i7-3820QM
SeriesIntel Core i7Intel Kaby LakeIntel Core i7
CodenameIvy BridgeKaby LakeIvy Bridge
Series: Core i7 Ivy Bridge
Intel Core i7-3940XM3 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-3920XM2.9 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i7-3840QM2.8 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i7-3820QM2.7 - 3.7 GHz4 / 8 cores8 MB L3
Intel Core i7-3740QM2.7 - 3.7 GHz4 / 8 cores6 MB L3
Intel Core i7-3720QM2.6 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i7-3635QM2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-3630QM2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-3615QM2.3 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-3610QM2.3 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-3632QM2.2 - 3.2 GHz4 / 8 cores6 MB L3
Intel Core i7-3612QM2.1 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-3540M3 - 3.7 GHz2 / 4 cores4 MB L3
Intel Core i7-3520M « 2.9 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i7-3687U2.1 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i7-3667U2 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i7-3537U2 - 3.1 GHz2 / 4 cores4 MB L3
Intel Core i7-3517U1.9 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-3689Y1.5 - 2.6 GHz2 / 4 cores4 MB L3
Intel Core i7-7700K4.2 - 4.5 GHz4 / 8 cores8 MB L3
Intel Core i7-77003.6 - 4.2 GHz4 / 8 cores8 MB L3
Intel Xeon E3-1535M v63.1 - 4.2 GHz4 / 8 cores8 MB L3
Intel Core i7-7920HQ3.1 - 4.1 GHz4 / 8 cores8 MB L3
Intel Core i7-7700T2.9 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i5-7600K3.8 - 4.2 GHz4 / 4 cores8 MB L3
Intel Xeon E3-1505M v63 - 4 GHz4 / 8 cores8 MB L3
Intel Core i7-7820HQ2.9 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-7820HK2.9 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-7700HQ2.8 - 3.8 GHz4 / 8 cores6 MB L3
Intel Core i5-75003.4 - 3.8 GHz4 / 4 cores6 MB L3
Intel Core i5-7440HQ2.8 - 3.8 GHz4 / 4 cores6 MB L3
Intel Core i7-7567U3.5 - 4 GHz2 / 4 cores4 MB L3
Intel Core i7-7660U2.5 - 4 GHz2 / 4 cores4 MB L3
Intel Core i7-7600U2.8 - 3.9 GHz2 / 4 cores4 MB L3
Intel Core i5-7300HQ2.5 - 3.5 GHz4 / 4 cores6 MB L3
Intel Core i5-7500T2.7 - 3.3 GHz4 / 4 cores6 MB L3
Intel Core i5-7287U « 3.3 - 3.7 GHz2 / 4 cores4 MB L3
Intel Core i7-7560U2.4 - 3.8 GHz2 / 4 cores4 MB L3
Intel Core i5-7267U3.1 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i5-7360U2.3 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i7-7500U2.7 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i5-7300U2.6 - 3.5 GHz2 / 4 cores3 MB L3
Intel Core i5-7260U2.2 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i5-7200U2.5 - 3.1 GHz2 / 4 cores3 MB L3
Intel Core i3-7100H3 GHz2 / 4 cores3 MB L3
Intel Core i3-7167U2.8 GHz2 / 4 cores3 MB L3
Intel Core i7-7Y751.3 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i5-7Y571.2 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i5-7Y541.2 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i3-7100U2.4 GHz2 / 4 cores3 MB L3
Intel Core m3-7Y321 - 3 GHz2 / 4 cores4 MB L3
Intel Pentium Gold 4415U2.3 GHz2 / 4 cores2 MB L3
Intel Core m3-7Y301 - 2.6 GHz2 / 4 cores4 MB L3
Intel Celeron 3965U2.2 GHz2 / 2 cores2 MB L3
Intel Core i3-7020U2.3 GHz2 / 4 cores3 MB L3
Intel Celeron 3867U1.8 GHz2 / 2 cores2 MB L3
Intel Celeron 3865U1.8 GHz2 / 2 cores2 MB L3
Intel Pentium Gold 4425Y1.7 GHz2 / 4 cores2 MB L3
Intel Pentium Gold 4415Y1.6 GHz2 / 4 cores2 MB L3
Intel Pentium Gold 4410Y1.5 GHz2 / 4 cores2 MB L3
Intel Celeron 3965Y1.5 GHz2 / 2 cores2 MB L3
Intel Core i7-3940XM3 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-3920XM2.9 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i7-3840QM2.8 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i7-3820QM « 2.7 - 3.7 GHz4 / 8 cores8 MB L3
Intel Core i7-3740QM2.7 - 3.7 GHz4 / 8 cores6 MB L3
Intel Core i7-3720QM2.6 - 3.6 GHz4 / 8 cores6 MB L3
Intel Core i7-3635QM2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-3630QM2.4 - 3.4 GHz4 / 8 cores6 MB L3
Intel Core i7-3615QM2.3 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-3610QM2.3 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-3632QM2.2 - 3.2 GHz4 / 8 cores6 MB L3
Intel Core i7-3612QM2.1 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-3540M3 - 3.7 GHz2 / 4 cores4 MB L3
Intel Core i7-3520M2.9 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i7-3687U2.1 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i7-3667U2 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i7-3537U2 - 3.1 GHz2 / 4 cores4 MB L3
Intel Core i7-3517U1.9 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-3689Y1.5 - 2.6 GHz2 / 4 cores4 MB L3
Clock2900 - 3600 MHz3300 - 3700 MHz2700 - 3700 MHz
L1 Cache128 KB128 KB256 KB
L2 Cache512 KB512 KB1 MB
L3 Cache4 MB4 MB8 MB
Cores / Threads2 / 42 / 44 / 8
TDP35 Watt28 Watt45 Watt
Technology22 nm14 nm22 nm
max. Temp.105 °C100 °C105 °C
SocketBGA1023, PGA988BGA1356
FeaturesHD Graphics 4000, DDR3-1600 Memory Controller, HyperThreading, AVX, Quick Sync, VirtualizationDual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NIHD Graphics 4000, DDR3(L)-1600 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization
iGPUIntel HD Graphics 4000 (650 - 1250 MHz)Intel Iris Plus Graphics 650 (300 - 1100 MHz)Intel HD Graphics 4000 (650 - 1250 MHz)
Architecturex86x86x86
$346 U.S.$304 U.S.
Announced
Manufacturerark.intel.comark.intel.comark.intel.com
Transistors1400 Million
Die Size160 mm2

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
100%
1 3520M +
min: 3     avg: 3.3     median: 3.4 (4%)     max: 3.44 Points
202%
1 3820QM +
min: 6.68     avg: 6.8     median: 6.8 (9%)     max: 6.94 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
100%
1 3520M +
min: 1.41     avg: 1.4     median: 1.5 (36%)     max: 1.47 Points
105%
1 3820QM +
1.5 Points (38%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
100%
1 3520M +
min: 4408     avg: 4813     median: 4855 (29%)     max: 4903 Points
103%
1 3820QM +
min: 4910     avg: 4986     median: 5008 (30%)     max: 5039 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
100%
1 3520M +
min: 9112     avg: 10167     median: 10467 (8%)     max: 10605 Points
185%
1 3820QM +
min: 19326     avg: 19491     median: 19364 (14%)     max: 19782 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
100%
1 3520M +
min: 11581     avg: 12766     median: 12889.5 (9%)     max: 13151 Points
187%
1 3820QM +
min: 23605     avg: 24083     median: 24069 (17%)     max: 24448 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
100%
1 3520M +
min: 6029     avg: 6128     median: 6146.5 (7%)     max: 6203 Points
101%
1 3820QM +
min: 6187     avg: 6245     median: 6214 (8%)     max: 6398 Points
wPrime 2.10 - wPrime 2.0 1024m *
100%
1 3520M +
min: 456     avg: 493.2     median: 492.1 (6%)     max: 570 s
103%
1 3820QM +
min: 223.9     avg: 236.3     median: 236.3 (3%)     max: 248.6 s
wPrime 2.10 - wPrime 2.0 32m *
100%
1 3520M +
min: 14.4     avg: 15.5     median: 15.4 (3%)     max: 17.1 s
102%
1 3820QM +
min: 7.314     avg: 7.5     median: 7.5 (2%)     max: 7.612 s
WinRAR - WinRAR 4.0
100%
1 3520M +
min: 2661     avg: 2863     median: 2715 (4%)     max: 3527 Points
169%
1 3820QM +
min: 4530     avg: 4575     median: 4575 (7%)     max: 4620 Points
X264 HD Benchmark 4.0 - x264 Pass 2
100%
1 3520M +
min: 6.7     avg: 16.1     median: 18.9 (7%)     max: 19.44 fps
197%
1 3820QM +
min: 37.1     avg: 37.2     median: 37.2 (13%)     max: 37.24 fps
X264 HD Benchmark 4.0 - x264 Pass 1
100%
1 3520M +
min: 35.1     avg: 86.2     median: 98.6 (23%)     max: 101.8 fps
153%
1 3820QM +
min: 147.9     avg: 150.4     median: 150.4 (35%)     max: 152.9 fps
TrueCrypt - TrueCrypt Serpent
100%
1 3520M +
min: 0.164     avg: 0.2     median: 0.2 (0%)     max: 0.176 GB/s
210%
1 3820QM +
0.4 GB/s (0%)
TrueCrypt - TrueCrypt Twofish
100%
1 3520M +
min: 0.249     avg: 0.3     median: 0.3 (5%)     max: 0.302 GB/s
210%
1 3820QM +
0.6 GB/s (11%)
TrueCrypt - TrueCrypt AES
100%
1 3520M +
min: 1.2     avg: 1.6     median: 1.7 (4%)     max: 1.7 GB/s
206%
1 3820QM +
3.5 GB/s (9%)
3DMark 06 - CPU - 3DMark 06 - CPU
100%
1 3520M +
min: 3528     avg: 4086     median: 4134 (9%)     max: 4212 Points
166%
1 3820QM +
min: 6720     avg: 6832     median: 6849 (15%)     max: 6910 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
100%
1 3520M +
min: 10     avg: 10.3     median: 10 (2%)     max: 10.94 s
100%
1 3820QM +
min: 10     avg: 10.1     median: 10 (2%)     max: 10.39 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
100%
1 3520M +
min: 24     avg: 24.8     median: 25 (1%)     max: 25.87 s
100%
1 3820QM +
min: 22     avg: 22.6     median: 22 (1%)     max: 23.7 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
100%
1 3520M +
min: 565     avg: 591     median: 594 (3%)     max: 612 s
100%
1 3820QM +
min: 550     avg: 555     median: 554.5 (2%)     max: 559 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
100%
1 3520M +
min: 55800     avg: 63808     median: 67130 (32%)     max: 69140 MIPS
204%
1 3820QM +
min: 134350     avg: 136990     median: 136990 (65%)     max: 139630 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
100%
1 3520M +
min: 41450     avg: 42502     median: 42450 (33%)     max: 44032 MFLOPS
202%
1 3820QM +
min: 84860     avg: 85585     median: 85585 (66%)     max: 86310 MFLOPS
Windows 7 Experience Index - Win7 CPU
100%
1 3520M +
7.2 Points (92%)
106%
1 3820QM +
min: 7.5     avg: 7.6     median: 7.6 (97%)     max: 7.7 Points
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
100%
1 3520M +
min: 9277     avg: 11188     median: 11511 (10%)     max: 11788 Points
210%
1 3820QM +
min: 23042     avg: 23979     median: 24158 (21%)     max: 24792 Points
3DMark 11 - 3DM11 Performance Physics
100%
1 3520M +
min: 3582     avg: 4275     median: 4466 (12%)     max: 4774 Points
202%
1 3820QM +
min: 8825     avg: 9006     median: 9040 (24%)     max: 9118 Points
3DMark - 3DMark Ice Storm Physics
100%
1 3520M +
39221 Points (32%)
3DMark - 3DMark Cloud Gate Physics
100%
1 3520M +
3393 Points (9%)
3DMark - 3DMark Fire Strike Standard Physics
100%
1 3520M +
4772 Points (9%)
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
min: 897     avg: 899     median: 898.5 (38%)     max: 900 Points
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
min: 2160     avg: 2193     median: 2193 (4%)     max: 2226 Points
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
min: 4419     avg: 4497     median: 4497 (45%)     max: 4575 Points
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
min: 8230     avg: 8839     median: 8838.5 (10%)     max: 9447 Points

Average Benchmarks Intel Core i7-3520M → 0% n=

Average Benchmarks Intel Core i5-7287U → 0% n=

Average Benchmarks Intel Core i7-3820QM → 0% 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

v1.27
log 15. 20:05:53

#0 checking url part for id 3065 +0s ... 0s

#1 checking url part for id 8452 +0s ... 0s

#2 checking url part for id 3063 +0s ... 0s

#3 not redirecting to Ajax server +0s ... 0s

#4 did not recreate cache, as it is less than 5 days old! Created at Thu, 13 Jun 2024 05:33:43 +0200 +0.001s ... 0.001s

#5 composed specs +0.039s ... 0.04s

#6 did output specs +0s ... 0.04s

#7 getting avg benchmarks for device 3065 +0.003s ... 0.043s

#8 got single benchmarks 3065 +0.033s ... 0.076s

#9 getting avg benchmarks for device 8452 +0.003s ... 0.079s

#10 got single benchmarks 8452 +0.006s ... 0.085s

#11 getting avg benchmarks for device 3063 +0.003s ... 0.088s

#12 got single benchmarks 3063 +0.024s ... 0.113s

#13 got avg benchmarks for devices +0s ... 0.113s

#14 min, max, avg, median took s +0.181s ... 0.294s

#15 return log +0s ... 0.294s

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Redaktion, 2017-09- 8 (Update: 2023-07- 1)