Intel Core i7-3840QM vs Intel Core i7-3720QM vs Intel Core i7-3520M

Intel Core i7-3840QM

The Intel Core i7-3840QM is a fast quad-core processor for laptops based on the Ivy Bridge architecture and successor of the i7-3820QM. 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 2.8 GHz but can dynamically increase clock rates with Turbo Boost up to 3.6 GHz (for 4 active cores), 3.7 GHz (for 2 active cores) and 3.8 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 i7-3840QM should be slightly above a similarly clocked Sandy Bridge processor due to slight architectural improvements. Overall, performance should be similar to the Core i7-3920XM.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 650 MHz up to 1300 MHz with Turbo Boost, making it one of the faster variants.

As with most quad-core Ivy Bridge models, the Core i7-3840QM 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 i7-3720QM

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The Intel Core i7-3720QM is a fast high-end 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 2.6 GHz but can dynamically increase clock rates with Turbo Boost up to 3.4 GHz (for 4 active cores), 3.5 GHz (for 2 active cores) and 3.6 GHz (for 1 active core).

The performance of the Core i7-3720QM is slightly above a similarly clocked Sandy Bridge processor due to slight architectural improvements. As a result, overall performance is 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 i7-3720QM 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 i7-3520M

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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.

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.

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Intel Core i7-3840QM

Intel Core i7-3720QM

Intel Core i7-3520M

Intel Core i7

Ivy Bridge

: Core i7 Ivy Bridge

Intel Core i7-3940XM	3000 - 3900 MHz	4 / 8	8 MB
Intel Core i7-3920XM	2900 - 3800 MHz	4 / 8	8 MB
» Intel Core i7-3840QM	2800 - 3800 MHz	4 / 8	8 MB
Intel Core i7-3820QM	2700 - 3700 MHz	4 / 8	8 MB
Intel Core i7-3740QM	2700 - 3700 MHz	4 / 8	6 MB
Intel Core i7-3720QM	2600 - 3600 MHz	4 / 8	6 MB
Intel Core i7-3635QM	2400 - 3400 MHz	4 / 8	6 MB
Intel Core i7-3630QM	2400 - 3400 MHz	4 / 8	6 MB
Intel Core i7-3615QM	2300 - 3300 MHz	4 / 8	6 MB
Intel Core i7-3610QM	2300 - 3300 MHz	4 / 8	6 MB
Intel Core i7-3632QM	2200 - 3200 MHz	4 / 8	6 MB
Intel Core i7-3612QM	2100 - 3100 MHz	4 / 8	6 MB
Intel Core i7-3540M	3000 - 3700 MHz	2 / 4	4 MB
Intel Core i7-3520M	2900 - 3600 MHz	2 / 4	4 MB
Intel Core i7-3687U	2100 - 3300 MHz	2 / 4	4 MB
Intel Core i7-3667U	2000 - 3200 MHz	2 / 4	4 MB
Intel Core i7-3537U	2000 - 3100 MHz	2 / 4	4 MB
Intel Core i7-3517U	1900 - 3000 MHz	2 / 4	4 MB
Intel Core i7-3689Y	1500 - 2600 MHz	2 / 4	4 MB

Intel Core i7-3940XM	3000 - 3900 MHz	4 / 8	8 MB
Intel Core i7-3920XM	2900 - 3800 MHz	4 / 8	8 MB
Intel Core i7-3840QM	2800 - 3800 MHz	4 / 8	8 MB
Intel Core i7-3820QM	2700 - 3700 MHz	4 / 8	8 MB
Intel Core i7-3740QM	2700 - 3700 MHz	4 / 8	6 MB
» Intel Core i7-3720QM	2600 - 3600 MHz	4 / 8	6 MB
Intel Core i7-3635QM	2400 - 3400 MHz	4 / 8	6 MB
Intel Core i7-3630QM	2400 - 3400 MHz	4 / 8	6 MB
Intel Core i7-3615QM	2300 - 3300 MHz	4 / 8	6 MB
Intel Core i7-3610QM	2300 - 3300 MHz	4 / 8	6 MB
Intel Core i7-3632QM	2200 - 3200 MHz	4 / 8	6 MB
Intel Core i7-3612QM	2100 - 3100 MHz	4 / 8	6 MB
Intel Core i7-3540M	3000 - 3700 MHz	2 / 4	4 MB
Intel Core i7-3520M	2900 - 3600 MHz	2 / 4	4 MB
Intel Core i7-3687U	2100 - 3300 MHz	2 / 4	4 MB
Intel Core i7-3667U	2000 - 3200 MHz	2 / 4	4 MB
Intel Core i7-3537U	2000 - 3100 MHz	2 / 4	4 MB
Intel Core i7-3517U	1900 - 3000 MHz	2 / 4	4 MB
Intel Core i7-3689Y	1500 - 2600 MHz	2 / 4	4 MB

Intel Core i7-3940XM	3000 - 3900 MHz	4 / 8	8 MB
Intel Core i7-3920XM	2900 - 3800 MHz	4 / 8	8 MB
Intel Core i7-3840QM	2800 - 3800 MHz	4 / 8	8 MB
Intel Core i7-3820QM	2700 - 3700 MHz	4 / 8	8 MB
Intel Core i7-3740QM	2700 - 3700 MHz	4 / 8	6 MB
Intel Core i7-3720QM	2600 - 3600 MHz	4 / 8	6 MB
Intel Core i7-3635QM	2400 - 3400 MHz	4 / 8	6 MB
Intel Core i7-3630QM	2400 - 3400 MHz	4 / 8	6 MB
Intel Core i7-3615QM	2300 - 3300 MHz	4 / 8	6 MB
Intel Core i7-3610QM	2300 - 3300 MHz	4 / 8	6 MB
Intel Core i7-3632QM	2200 - 3200 MHz	4 / 8	6 MB
Intel Core i7-3612QM	2100 - 3100 MHz	4 / 8	6 MB
Intel Core i7-3540M	3000 - 3700 MHz	2 / 4	4 MB
» Intel Core i7-3520M	2900 - 3600 MHz	2 / 4	4 MB
Intel Core i7-3687U	2100 - 3300 MHz	2 / 4	4 MB
Intel Core i7-3667U	2000 - 3200 MHz	2 / 4	4 MB
Intel Core i7-3537U	2000 - 3100 MHz	2 / 4	4 MB
Intel Core i7-3517U	1900 - 3000 MHz	2 / 4	4 MB
Intel Core i7-3689Y	1500 - 2600 MHz	2 / 4	4 MB

2800 - 3800 MHz

2600 - 3600 MHz

2900 - 3600 MHz

256 KB

128 KB

1 MB

512 KB

8 MB

6 MB

4 MB

4 / 8

2 / 4

1400

160 mm²

105 °C

HD Graphics 4000, DDR3(L)-1600 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization

HD Graphics 4000 (650-1250MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization

HD Graphics 4000, DDR3-1600 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization

iGPU

Intel HD Graphics 4000 (650 - 1300 MHz)

Intel HD Graphics 4000 (650 - 1250 MHz)

$568 U.S.

$378 U.S.

$346 U.S.

FCBGA1224, FCPGA988

BGA1023, PGA988

Intel Core i7 3720QM

Intel Core i7 3520M

Cinebench R15 - CPU Multi 64Bit

100%


Asus N56VM	GeForce GT 630M	8192	662 / 897 MHz	2048MB DDR3 296.35	610


Maingear Nomad 15	GeForce GTX 680M	16384	757 / 1800 MHz	4096MB 306.97	7
One M73-2N, Ivy Bridge	HD Graphics 4000	8192			7.15


Sony Vaio SV-S13A1Z9E/S	GeForce GT 640M LE	12288	500 - 570 / 900 MHz	2048MB DDR3-VRAM ForceWare 296.18	3
Lenovo ThinkPad T430	NVS 5400M	4096	660 - 800 / 900 MHz	1024MB DDR3-VRAM ForceWare 295.80	3.33
HP EliteBook 8570p-B6Q03EA-ABD	Radeon HD 7570M	4096	500 / 800 MHz	1024MB DX11, Shader 5.0, GDDR5, 64bit atiumdag 8.951.6.1500 Win7/64	3.33
Samsung 600B5C-S03	NVS 5200M	8192	625-713 / 900 MHz	1024MB Speicherbus 64 bit nvlddmkm 8.17.12.9687 (Forceware 296.87) / Win7 64	3.34
Lenovo ThinkPad T530 2429-5XG	NVS 5400M	8192	660 / 900 MHz	1024MB	3.36
Lenovo ThinkPad T430s	HD Graphics 4000	4096	650 - 1250 / 800 MHz	8.15.10.2639	3.37
HP Elitebook 2570p-B6Q10EA	HD Graphics 4000	4096		8.15.10.2712	3.38
HP EliteBook 8470p	Radeon HD 7570M	4096	500 / 800 MHz	1024MB GDDR5, 64 Bit atiumdag 8.951.6.0 / Win 7 64	@3.4 GHz 3.41
Toshiba Tecra R940-S9440	Radeon HD 7570M	4096	450 - 650 / 800 / 900 MHz	1024MB 8.932.5.6000	3.41
One M73-2O	HD Graphics 4000				3.44


Fujitsu Celsius H920	Quadro K3000M	16384	654 / 700 MHz	2048MB nvlddmkm 9.18.13.697 (Forceware 306.97)/ Win7 64	4749
Fujitsu Celsius H720 H7200WXP11DE	Quadro K1000M	8192	850 / 900 MHz	2048MB DDR3 nvlddmkm 8.17.12.9679 (Forceware 296.79) Win7/64	4761
Schenker XMG P702 PRO	GeForce GTX 680M	8192	720 / 1800 MHz	4096MB GDDR5, Optimus ForceWare 302.71 / 302.72	4797
Schenker XMG P502 PRO	GeForce GTX 675M	8192			4803
XMG A502 Clevo Barebone	HD Graphics 4000				4818
Schenker XMG P702 PRO	GeForce GTX 670M	8192			4824
Dell Precision M4700	Quadro K2000M	16384	745 / 900 MHz	2048MB GDDR3 296.79	4836
Asus G75V	GeForce GTX 670M	16384	598 / 1500 MHz	3072MB GDDR5-VRAM ForceWare 296.39	4868
Alienware M14x R2	GeForce GT 650M	8192	745 / 1000 MHz	1024MB Turbo bis 835 MHz ForceWare 296.16	4893
One M73-2O	GeForce GT 650M	8192	735 / 1000 MHz	2048MB GDDR5, Optimus ForceWare 295.93	4916


One M73-2O	HD Graphics 4000				55800
HP Elitebook 2570p-B6Q10EA	HD Graphics 4000	4096		8.15.10.2712	58540
HP EliteBook 8570p-B6Q03EA-ABD	Radeon HD 7570M	4096	500 / 800 MHz	1024MB DX11, Shader 5.0, GDDR5, 64bit atiumdag 8.951.6.1500 Win7/64	67130
Samsung 600B5C-S03	NVS 5200M	8192	625-713 / 900 MHz	1024MB Speicherbus 64 bit nvlddmkm 8.17.12.9687 (Forceware 296.87) / Win7 64	68430
Toshiba Tecra R940-S9440	Radeon HD 7570M	4096	450 - 650 / 800 / 900 MHz	1024MB 8.932.5.6000	69140

Intel Core i7-3840QM vs Intel Core i7-3720QM vs Intel Core i7-3520M