Intel Core i7-2620M vs Intel Core i7-2720QM vs Intel Core i7-2640M

Intel Core i7-2620M

► remove Intel 2620M

The Intel Core i7-2620M is the fastest dual core processor at the time of introduction in Q1 2011. It is based on the Sandy Bridge architecture and offers Hyperthreading to handle 4 threads at once (for a better usage of the pipeline). Compared to the slower Core i5, the i7 offers a larger last level cache of 4MB. The base clock speed is 2.7 GHz but due to Turbo Boost it can reach 3.2 GHz (2 cores active) and 3.4 GHz (1 core active).

Sandy Bridge is the evolutionary successor of the Arrandale architecture. The most noteable improvements are the new 256Bit AVX instructions, the improved Turbo 2.0 and the integration of the graphics card into the 32nm CPU core. 

Der i7-2620M offers an integrated graphics card ( Intel HD Graphics 3000) which is clearly faster then the older Intel HD Graphics in the Arrandale CPUs. As the new GPU is included in the CPU, it is also manufactured in 32nm and shares the fast level 3 cache with the CPU cores (using a new ring bus). In the 2620M it is clocked from 650-1300MHz (Turbo Boost).

Furthermore, an improved dual-channel DDR3 memory controller is included on the CPU die that is used by the CPU and GPU part.

Due to the improved architecture and the new Turbo Boost 2.0, the average performance of the Core i7-2620M is higher than a similar clocked Arrandale Core i7. In synthetic benchmarks the performance ranges from the old Core i7-620M to the Core i7-820QM quad core processor. On average it should be on a level of the fast Core i7-640M.

The 35W TDP rating includes the integrated GPU and memory controller.

Intel Core i7-2720QM

► remove Intel 2720QM

The Intel Core i7-2720QM is a fast high-end quad core processor for laptops. It is based on the Sandy Bridge architecture and offers Hyperthreading to handle 8 threads at once (for a better usage of the pipeline). Compared to the previous Clarksdale quad-cores, the i7-2720QM is now manufactured in 32nm and offers an integrated graphics card and AES functions. Compared to the faster clocked 2820QM, the 2720QM offers less level 3 cache (6 vs. 8MB).

Sandy Bridge is the evolutionary successor of the Arrandale architecture. The most noteable improvements are the new 256Bit AVX instructions, the improved Turbo Boost and the integration of the graphics card into the 32nm CPU core. Furthermore, the integrated memory controller was improved and supports up to 8 GB DDR3-1333.

The i7-2720QM offers an integrated graphics card (Intel HD Graphics 3000) which proved to be clearly faster than the old Intel HD Graphics in the Arrandale CPUs and on a level with entry level dedicated graphics cards like the GeForce 310M. The HD Graphics 3000 also supports Turbo Boost and clocks between 650 MHz and 1300 MHz. As the graphics card shares the fast last level cache, the processor is a bit slower with activated GPU.

The performance of the Core i7-2720QM is noticeable better than the old i7-720QM and even a bit faster than the fastest Clarksfield CPU the Core i7-940XM quad core. Therefore, the performance should be sufficient for modern 3D games and demanding applications. Thanks to the fast Turbo Boost 2.0 even single threaded applications run very fast. The detailed benchmark results of the 2720QM can be found in the lower section of this page, or in our detailed review of the new Sandy Bridge quad core processors.

The relative high TDP rating of the 2720QM of 45 Watt enables the usage of the quad core only in 15" laptops and up. However, compared to the previous generation of quad-cores, the TDP improved, as the integrated GPU is now included.

Intel Core i7-2640M

► remove Intel 2640M

The Intel Core i7-2640M is the fastest dual core processor at the time of introduction in Q3 2011 and successor of the slower clocked i7-2620M. It is based on the Sandy Bridge architecture and offers Hyperthreading to handle 4 threads at once (for a better usage of the pipeline). Compared to the slower Core i5, the i7 offers a larger last level cache of 4MB. The base clock speed is 2.8 GHz but due to Turbo Boost it can reach 3.3 GHz (2 cores active) and 3.5 GHz (1 core active).

Sandy Bridge is the evolutionary successor of the Arrandale architecture. The most noteable improvements are the new 256Bit AVX instructions, the improved Turbo 2.0 and the integration of the graphics card into the 32nm CPU core. 

Der i7-2640M offers an integrated graphics card ( Intel HD Graphics 3000) which is clearly faster then the older Intel HD Graphics in the Arrandale CPUs. As the new GPU is included in the CPU, it is also manufactured in 32nm and shares the fast level 3 cache with the CPU cores (using a new ring bus). In the 2620M it is clocked from 650-1300MHz (Turbo Boost), and in the 2640M it should be similar.

Furthermore, an improved dual-channel DDR3 memory controller is included on the CPU die that is used by the CPU and GPU part.

Due to the improved architecture and the new Turbo Boost 2.0, the average performance of the Core i7-2640M is higher than a similar clocked Arrandale Core i7 dual core. The performance should even excel the old high-end quad core models like the Core i7-820QM.

The 35W TDP rating includes the integrated GPU and memory controller.

Intel Core i7-2620MIntel Core i7-2720QMIntel Core i7-2640M
Intel Core i7Intel Core i7Intel Core i7
Sandy BridgeSandy BridgeSandy Bridge
: Core i7 Sandy Bridge
Intel Core i7-2960XM2700 - 3700 MHz4 / 88 MB
Intel Core i7-2860QM2500 - 3600 MHz4 / 88 MB
Intel Core i7-2920XM2500 - 3500 MHz4 / 88 MB
Intel Core i7-2760QM2400 - 3500 MHz4 / 86 MB
Intel Core i7-2820QM2300 - 3400 MHz4 / 88 MB
Intel Core i7-2720QM2200 - 3300 MHz4 / 86 MB
Intel Core i7-2675QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2670QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2635QM2000 - 2900 MHz4 / 86 MB
Intel Core i7-2630QM2000 - 2900 MHz4 / 86 MB
Intel Core i7-2640M2800 - 3500 MHz2 / 44 MB
» Intel Core i7-2620M2700 - 3400 MHz2 / 44 MB
Intel Core i7-2649M2300 - 3200 MHz2 / 44 MB
Intel Core i7-2629M2100 - 3000 MHz2 / 44 MB
Intel Core i7-2677M1800 - 2900 MHz2 / 44 MB
Intel Core i7-2637M1700 - 2800 MHz2 / 44 MB
Intel Core i7-2657M1600 - 2700 MHz2 / 44 MB
Intel Core i7-2617M1500 - 2600 MHz2 / 44 MB
Intel Core i7-2960XM2700 - 3700 MHz4 / 88 MB
Intel Core i7-2860QM2500 - 3600 MHz4 / 88 MB
Intel Core i7-2920XM2500 - 3500 MHz4 / 88 MB
Intel Core i7-2760QM2400 - 3500 MHz4 / 86 MB
Intel Core i7-2820QM2300 - 3400 MHz4 / 88 MB
» Intel Core i7-2720QM2200 - 3300 MHz4 / 86 MB
Intel Core i7-2675QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2670QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2635QM2000 - 2900 MHz4 / 86 MB
Intel Core i7-2630QM2000 - 2900 MHz4 / 86 MB
Intel Core i7-2640M2800 - 3500 MHz2 / 44 MB
Intel Core i7-2620M2700 - 3400 MHz2 / 44 MB
Intel Core i7-2649M2300 - 3200 MHz2 / 44 MB
Intel Core i7-2629M2100 - 3000 MHz2 / 44 MB
Intel Core i7-2677M1800 - 2900 MHz2 / 44 MB
Intel Core i7-2637M1700 - 2800 MHz2 / 44 MB
Intel Core i7-2657M1600 - 2700 MHz2 / 44 MB
Intel Core i7-2617M1500 - 2600 MHz2 / 44 MB
Intel Core i7-2960XM2700 - 3700 MHz4 / 88 MB
Intel Core i7-2860QM2500 - 3600 MHz4 / 88 MB
Intel Core i7-2920XM2500 - 3500 MHz4 / 88 MB
Intel Core i7-2760QM2400 - 3500 MHz4 / 86 MB
Intel Core i7-2820QM2300 - 3400 MHz4 / 88 MB
Intel Core i7-2720QM2200 - 3300 MHz4 / 86 MB
Intel Core i7-2675QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2670QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2635QM2000 - 2900 MHz4 / 86 MB
Intel Core i7-2630QM2000 - 2900 MHz4 / 86 MB
» Intel Core i7-2640M2800 - 3500 MHz2 / 44 MB
Intel Core i7-2620M2700 - 3400 MHz2 / 44 MB
Intel Core i7-2649M2300 - 3200 MHz2 / 44 MB
Intel Core i7-2629M2100 - 3000 MHz2 / 44 MB
Intel Core i7-2677M1800 - 2900 MHz2 / 44 MB
Intel Core i7-2637M1700 - 2800 MHz2 / 44 MB
Intel Core i7-2657M1600 - 2700 MHz2 / 44 MB
Intel Core i7-2617M1500 - 2600 MHz2 / 44 MB
2700 - 3400 MHz2200 - 3300 MHz2800 - 3500 MHz
128 KB256 KB128 KB
512 KB1 MB512 KB
4 MB6 MB4 MB
2 / 44 / 82 / 4
35 45 35
624 995 624
32 32 32
149 mm2216 mm2149 mm2
100 °C100 °C100 °C
rPGA988B, BGA1023FCBGA1224, FCPGA988
HD Graphics 3000 (650-1300MHz), DDR3-1066/1333 Memory Controller (max 8GB), HyperThreading, AVX, Quick Sync, VirtualizationHD Graphics 3000 (650-1300MHz), DDR-1600 Memory Controller, HyperThreading, AVX, Quick Sync, VirtualizationHD Graphics 3000, DDR3-1066/1333 Memory Controller (max 8GB), HyperThreading, AVX, Quick Sync, Virtualization
iGPUIntel HD Graphics 3000 (650 - 1300 MHz)Intel HD Graphics 3000 (650 - 1300 MHz)Intel HD Graphics 3000 (650 - 1300 MHz)
$346 U.S.$378 U.S.$346 U.S.
Intel Core i7 2620MIntel Core i7 2720QM

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 2.6     avg: 3     median: 3.1 (7%)     max: 3.11 Points
min: 5.12     avg: 5.3     median: 5.3 (12%)     max: 5.64 Points
min: 3.07     avg: 3.1     median: 3.2 (7%)     max: 3.2 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 3532     avg: 4200     median: 4333 (45%)     max: 4384
min: 4114     avg: 4168     median: 4167 (43%)     max: 4219
min: 4009     avg: 4383     median: 4443 (46%)     max: 4506
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 7650     avg: 9124     median: 9433 (16%)     max: 9632
min: 13961     avg: 14649     median: 14852 (25%)     max: 15301
min: 9691     avg: 9766     median: 9778 (16%)     max: 9833
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 9634     avg: 11273     median: 11444 (13%)     max: 11711 Points
min: 15819     avg: 17946     median: 18193 (21%)     max: 19061 Points
min: 11067     avg: 11767     median: 11874 (14%)     max: 12037 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 4462     avg: 5325     median: 5412 (47%)     max: 5479 Points
min: 4204     avg: 5084     median: 5236 (46%)     max: 5299 Points
min: 5445     avg: 5549     median: 5534 (48%)     max: 5665 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 494     avg: 525     median: 505 (6%)     max: 593.5 s
min: 410.2     avg: 423     median: 423.5 (5%)     max: 435.633 s
min: 478.5     avg: 494     median: 489 (6%)     max: 523.632 s
wPrime 2.10 - wPrime 2.0 32m *
min: 11.565     avg: 16.3     median: 16.2 (3%)     max: 19.4 s
min: 12.13     avg: 13     median: 13.1 (3%)     max: 13.729 s
min: 15     avg: 15.5     median: 15.1 (3%)     max: 16.614 s
3DMark 06 - CPU - 3DMark 06 - CPU
min: 3039     avg: 3753     median: 3827 (26%)     max: 3884 Points
min: 5133     avg: 5529     median: 5616 (38%)     max: 5772 Points
min: 3882     avg: 3934     median: 3927 (26%)     max: 3978 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 11     avg: 11.4     median: 11 (2%)     max: 14.3 s
min: 11     avg: 11.4     median: 11 (2%)     max: 12.3 s
min: 11     avg: 11.2     median: 11 (2%)     max: 11.66 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 26     avg: 27.3     median: 27 (1%)     max: 32.9 s
min: 26     avg: 27     median: 27 (1%)     max: 28.2 s
min: 25     avg: 26     median: 26 (1%)     max: 27.04 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 620     avg: 685     median: 640.1 (3%)     max: 1098.43 s
min: 635     avg: 650     median: 647 (3%)     max: 671 s
min: 604     avg: 626     median: 634 (3%)     max: 639 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
min: 53030     avg: 55805     median: 53870 (26%)     max: 62450 MIPS
109640 MIPS (52%)
min: 64300     avg: 64523     median: 64545 (31%)     max: 64700 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
min: 37790     avg: 37923     median: 37950 (29%)     max: 38000 MFLOPS
66400 MFLOPS (51%)
min: 39000     avg: 39255     median: 39135 (30%)     max: 39750 MFLOPS
Windows 7 Experience Index - Win7 CPU
min: 6.9     avg: 7.1     median: 7.1 (91%)     max: 7.1 Points
7.5 Points (96%)
min: 7     avg: 7.2     median: 7.1 (91%)     max: 7.6 Points
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 8605     avg: 11161     median: 10271 (14%)     max: 21984 Points
min: 11457     avg: 17984     median: 18725 (26%)     max: 19716 Points
min: 10127     avg: 10509     median: 10559 (15%)     max: 10838 Points
3DMark 11 - 3DM11 Performance Physics
min: 3296     avg: 3947     median: 4060 (18%)     max: 4362 Points
min: 5473     avg: 6495     median: 6627 (30%)     max: 7334 Points
min: 3902     avg: 4140     median: 4172 (19%)     max: 4320 Points

Average Benchmarks Intel Core i7-2620M → 100% n=16

Average Benchmarks Intel Core i7-2720QM → 135% n=16

Average Benchmarks Intel Core i7-2640M → 103% n=16

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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)