Intel Core i7-2620M vs Intel Core i7-2820QM vs Intel Core i7-2640M

Intel Core i7-2620M

► remove from comparison 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 i7-2820QM

► remove from comparison Intel 2820QM

The Intel Core i7-2820QM is a fast high-end quad core processor for laptops. At the time of announcement (Jan. 2011) it was the fastest 45 Watt processor. 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 i7-2820QM is now manufactured in 32nm and offers an integrated graphics card and AES functions. Compared to the slower clocked 2720QM, the 2820QM offers more level 3 cache (8 vs. 6MB).

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 i7-2820QM 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 i7-2820QM is noticeable better (e.g. Cinebench versions) than the previous generation 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 2820QM can be found in the lower section of this page.

The relative high TDP rating of the 2820QM 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 from comparison 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 i7-2820QMIntel Core i7-2640M
Intel Core i7Intel Core i7Intel Core i7
Sandy BridgeSandy BridgeSandy Bridge
Series: Core i7 Sandy Bridge
Intel Core i7-2960XM2.7 - 3.7 GHz4 / 88 MB
Intel Core i7-2860QM2.5 - 3.6 GHz4 / 88 MB
Intel Core i7-2920XM2.5 - 3.5 GHz4 / 88 MB
Intel Core i7-2760QM2.4 - 3.5 GHz4 / 86 MB
Intel Core i7-2820QM2.3 - 3.4 GHz4 / 88 MB
Intel Core i7-2720QM2.2 - 3.3 GHz4 / 86 MB
Intel Core i7-2675QM2.2 - 3.1 GHz4 / 86 MB
Intel Core i7-2670QM2.2 - 3.1 GHz4 / 86 MB
Intel Core i7-2635QM2 - 2.9 GHz4 / 86 MB
Intel Core i7-2630QM2 - 2.9 GHz4 / 86 MB
Intel Core i7-2640M2.8 - 3.5 GHz2 / 44 MB
» Intel Core i7-2620M2.7 - 3.4 GHz2 / 44 MB
Intel Core i7-2649M2.3 - 3.2 GHz2 / 44 MB
Intel Core i7-2629M2.1 - 3 GHz2 / 44 MB
Intel Core i7-2677M1.8 - 2.9 GHz2 / 44 MB
Intel Core i7-2637M1.7 - 2.8 GHz2 / 44 MB
Intel Core i7-2657M1.6 - 2.7 GHz2 / 44 MB
Intel Core i7-2617M1.5 - 2.6 GHz2 / 44 MB
Intel Core i7-2960XM2.7 - 3.7 GHz4 / 88 MB
Intel Core i7-2860QM2.5 - 3.6 GHz4 / 88 MB
Intel Core i7-2920XM2.5 - 3.5 GHz4 / 88 MB
Intel Core i7-2760QM2.4 - 3.5 GHz4 / 86 MB
» Intel Core i7-2820QM2.3 - 3.4 GHz4 / 88 MB
Intel Core i7-2720QM2.2 - 3.3 GHz4 / 86 MB
Intel Core i7-2675QM2.2 - 3.1 GHz4 / 86 MB
Intel Core i7-2670QM2.2 - 3.1 GHz4 / 86 MB
Intel Core i7-2635QM2 - 2.9 GHz4 / 86 MB
Intel Core i7-2630QM2 - 2.9 GHz4 / 86 MB
Intel Core i7-2640M2.8 - 3.5 GHz2 / 44 MB
Intel Core i7-2620M2.7 - 3.4 GHz2 / 44 MB
Intel Core i7-2649M2.3 - 3.2 GHz2 / 44 MB
Intel Core i7-2629M2.1 - 3 GHz2 / 44 MB
Intel Core i7-2677M1.8 - 2.9 GHz2 / 44 MB
Intel Core i7-2637M1.7 - 2.8 GHz2 / 44 MB
Intel Core i7-2657M1.6 - 2.7 GHz2 / 44 MB
Intel Core i7-2617M1.5 - 2.6 GHz2 / 44 MB
Intel Core i7-2960XM2.7 - 3.7 GHz4 / 88 MB
Intel Core i7-2860QM2.5 - 3.6 GHz4 / 88 MB
Intel Core i7-2920XM2.5 - 3.5 GHz4 / 88 MB
Intel Core i7-2760QM2.4 - 3.5 GHz4 / 86 MB
Intel Core i7-2820QM2.3 - 3.4 GHz4 / 88 MB
Intel Core i7-2720QM2.2 - 3.3 GHz4 / 86 MB
Intel Core i7-2675QM2.2 - 3.1 GHz4 / 86 MB
Intel Core i7-2670QM2.2 - 3.1 GHz4 / 86 MB
Intel Core i7-2635QM2 - 2.9 GHz4 / 86 MB
Intel Core i7-2630QM2 - 2.9 GHz4 / 86 MB
» Intel Core i7-2640M2.8 - 3.5 GHz2 / 44 MB
Intel Core i7-2620M2.7 - 3.4 GHz2 / 44 MB
Intel Core i7-2649M2.3 - 3.2 GHz2 / 44 MB
Intel Core i7-2629M2.1 - 3 GHz2 / 44 MB
Intel Core i7-2677M1.8 - 2.9 GHz2 / 44 MB
Intel Core i7-2637M1.7 - 2.8 GHz2 / 44 MB
Intel Core i7-2657M1.6 - 2.7 GHz2 / 44 MB
Intel Core i7-2617M1.5 - 2.6 GHz2 / 44 MB
2700 - 3400 MHz2300 - 3400 MHz2800 - 3500 MHz
128 KB256 KB128 KB
512 KB1 MB512 KB
4 MB8 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-1066/1333/1600 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)
Architecturex86x86x86
$346 U.S.$568 U.S.$346 U.S.
Intel Core i7 2620MIntel Core i7 2820QM

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 2.6     avg: 3     median: 3.1 (6%)     max: 3.11 Points
min: 4.41     avg: 5.2     median: 5.5 (11%)     max: 5.81 Points
min: 3.07     avg: 3.1     median: 3.2 (6%)     max: 3.2 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
100%
1 2640M +
1.4 Points (43%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 3532     avg: 4200     median: 4333 (39%)     max: 4384
min: 4200     avg: 4274     median: 4249.5 (38%)     max: 4365
min: 4009     avg: 4383     median: 4443 (40%)     max: 4506
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 7650     avg: 9124     median: 9433 (16%)     max: 9632
min: 12641     avg: 14782     median: 15043.5 (25%)     max: 16105
min: 9691     avg: 9766     median: 9778 (16%)     max: 9833
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 9634     avg: 11273     median: 11444 (11%)     max: 11711 Points
min: 16327     avg: 18631     median: 19316 (18%)     max: 20393 Points
min: 11067     avg: 11767     median: 11874 (11%)     max: 12037 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 4462     avg: 5325     median: 5412 (41%)     max: 5479 Points
min: 5232     avg: 5368     median: 5372 (40%)     max: 5468 Points
min: 5445     avg: 5549     median: 5534 (42%)     max: 5665 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 494     avg: 525     median: 505 (6%)     max: 593.5 s
min: 281     avg: 366     median: 360.2 (4%)     max: 458.561 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: 8.27     avg: 10.7     median: 10 (2%)     max: 13.635 s
min: 15     avg: 15.5     median: 15.1 (3%)     max: 16.614 s
WinRAR - WinRAR 4.0
100%
1 2640M +
min: 2555     avg: 2632     median: 2620 (17%)     max: 2733
X264 HD Benchmark 4.0 - x264 Pass 2
100%
1 2640M +
min: 16.38     avg: 16.9     median: 17 (8%)     max: 17.21 fps
X264 HD Benchmark 4.0 - x264 Pass 1
100%
1 2640M +
min: 88.74     avg: 91     median: 89.4 (26%)     max: 95 fps
TrueCrypt - TrueCrypt Serpent
100%
1 2640M +
min: 0.124     avg: 0.1     median: 0.1 (6%)     max: 0.152 GB/s
TrueCrypt - TrueCrypt Twofish
100%
1 2640M +
min: 0.198     avg: 0.2     median: 0.3 (7%)     max: 0.27 GB/s
TrueCrypt - TrueCrypt AES
100%
1 2640M +
1.6 GB/s (6%)
3DMark 06 - CPU - 3DMark 06 - CPU
min: 3039     avg: 3753     median: 3827 (21%)     max: 3884 Points
min: 4427     avg: 5486     median: 5818.5 (32%)     max: 5923 Points
min: 3882     avg: 3934     median: 3927 (22%)     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: 11.2     median: 11 (2%)     max: 11.6 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: 23.1     avg: 29.7     median: 25 (1%)     max: 54 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: 618     avg: 628     median: 625 (3%)     max: 643.96 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
min: 83000     avg: 90497     median: 87000 (41%)     max: 101490 MIPS
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
min: 23590     avg: 53623     median: 66280 (51%)     max: 71000 MFLOPS
min: 39000     avg: 39255     median: 39135 (30%)     max: 39750 MFLOPS
PCMark 05 - PCMark 05 - Standard
100%
1 2820QM +
13842 Points (87%)
Windows 7 Experience Index - Win7 CPU
min: 6.9     avg: 7.1     median: 7.1 (91%)     max: 7.1 Points
min: 7.4     avg: 7.5     median: 7.5 (96%)     max: 7.5 Points
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 (12%)     max: 21984 Points
min: 16115     avg: 18441     median: 18520 (21%)     max: 20526 Points
min: 10127     avg: 10509     median: 10559 (12%)     max: 10838 Points
3DMark 11 - 3DM11 Performance Physics
min: 3296     avg: 3947     median: 4060 (17%)     max: 4362 Points
min: 5165     avg: 6335     median: 6724 (28%)     max: 7245 Points
min: 3902     avg: 4140     median: 4172 (17%)     max: 4320 Points
3DMark - 3DMark Ice Storm Physics
100%
1 2640M +
26569 Points (17%)
3DMark - 3DMark Cloud Gate Physics
100%
1 2640M +
2876 Points (7%)
Geekbench 2 - 32 Bit - Geekbench Stream
100%
1 2640M +
7873 Points (64%)
Geekbench 2 - 32 Bit - Geekbench Memory
100%
1 2640M +
6847 Points (62%)
Geekbench 2 - 32 Bit - Geekbench Floating Point
100%
1 2640M +
7293 Points (14%)
Geekbench 2 - 32 Bit - Geekbench Integer
100%
1 2640M +
6298 Points (13%)
Geekbench 2 - 32 Bit - Geekbench Total Score
100%
1 2640M +
6913 Points (18%)

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

Average Benchmarks Intel Core i7-2820QM → 134% n=16

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

- 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

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Redaktion, 2017-09- 8 (Update: 2017-09-11)