Intel Core i7-2620M 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 i7-2640M

► 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 i7-2640M
Intel Core i7Intel Core i7
Sandy BridgeSandy Bridge
: Core i7 Sandy Bridge
Intel Core i7-2960XM compare2700 - 3700 MHz4 / 88 MB
Intel Core i7-2860QM compare2500 - 3600 MHz4 / 88 MB
Intel Core i7-2920XM compare2500 - 3500 MHz4 / 88 MB
Intel Core i7-2760QM compare2400 - 3500 MHz4 / 86 MB
Intel Core i7-2820QM compare2300 - 3400 MHz4 / 88 MB
Intel Core i7-2720QM compare2200 - 3300 MHz4 / 86 MB
Intel Core i7-2675QM compare2200 - 3100 MHz4 / 86 MB
Intel Core i7-2670QM compare2200 - 3100 MHz4 / 86 MB
Intel Core i7-2635QM compare2000 - 2900 MHz4 / 86 MB
Intel Core i7-2630QM compare2000 - 2900 MHz4 / 86 MB
Intel Core i7-2640M2800 - 3500 MHz2 / 44 MB
» Intel Core i7-2620M2700 - 3400 MHz2 / 44 MB
Intel Core i7-2649M compare2300 - 3200 MHz2 / 44 MB
Intel Core i7-2629M compare2100 - 3000 MHz2 / 44 MB
Intel Core i7-2677M compare1800 - 2900 MHz2 / 44 MB
Intel Core i7-2637M compare1700 - 2800 MHz2 / 44 MB
Intel Core i7-2657M compare1600 - 2700 MHz2 / 44 MB
Intel Core i7-2617M compare1500 - 2600 MHz2 / 44 MB
Intel Core i7-2960XM compare2700 - 3700 MHz4 / 88 MB
Intel Core i7-2860QM compare2500 - 3600 MHz4 / 88 MB
Intel Core i7-2920XM compare2500 - 3500 MHz4 / 88 MB
Intel Core i7-2760QM compare2400 - 3500 MHz4 / 86 MB
Intel Core i7-2820QM compare2300 - 3400 MHz4 / 88 MB
Intel Core i7-2720QM compare2200 - 3300 MHz4 / 86 MB
Intel Core i7-2675QM compare2200 - 3100 MHz4 / 86 MB
Intel Core i7-2670QM compare2200 - 3100 MHz4 / 86 MB
Intel Core i7-2635QM compare2000 - 2900 MHz4 / 86 MB
Intel Core i7-2630QM compare2000 - 2900 MHz4 / 86 MB
» Intel Core i7-2640M2800 - 3500 MHz2 / 44 MB
Intel Core i7-2620M2700 - 3400 MHz2 / 44 MB
Intel Core i7-2649M compare2300 - 3200 MHz2 / 44 MB
Intel Core i7-2629M compare2100 - 3000 MHz2 / 44 MB
Intel Core i7-2677M compare1800 - 2900 MHz2 / 44 MB
Intel Core i7-2637M compare1700 - 2800 MHz2 / 44 MB
Intel Core i7-2657M compare1600 - 2700 MHz2 / 44 MB
Intel Core i7-2617M compare1500 - 2600 MHz2 / 44 MB
2700 - 3400 MHz2800 - 3500 MHz
128 KB128 KB
512 KB512 KB
4 MB4 MB
2 / 42 / 4
35 35
624 624
32 32
149 mm2149 mm2
100 °C100 °C
rPGA988B, BGA1023
HD Graphics 3000 (650-1300MHz), DDR3-1066/1333 Memory Controller (max 8GB), 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)
$346 U.S.$346 U.S.
Intel Core i7 2620M

Cinebench R11.5 - CPU Multi 64Bit
min: 2.6     avg: 3     median: 3.1 (7%)     max: 3.11 Points
min: 3.07     avg: 3.1     median: 3.2 (7%)     max: 3.2 Points
Cinebench R11.5 - CPU Single 64Bit
1.4 Points (53%)
Cinebench R10 - Rendering Single 32Bit
min: 3532     avg: 4200     median: 4333 (45%)     max: 4384 Points
min: 4009     avg: 4383     median: 4443 (46%)     max: 4506 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 7650     avg: 9124     median: 9433 (16%)     max: 9632 Points
min: 9691     avg: 9766     median: 9778 (16%)     max: 9833 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 9634     avg: 11273     median: 11444 (13%)     max: 11711 Points
min: 11067     avg: 11767     median: 11874 (14%)     max: 12037 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 4462     avg: 5325     median: 5412 (50%)     max: 5479 Points
min: 5445     avg: 5549     median: 5534 (51%)     max: 5665 Points
wPrime 2.10 - 1024m *
min: 494     avg: 525     median: 505 (6%)     max: 593.5 seconds
min: 478.5     avg: 494     median: 489 (6%)     max: 523.632 seconds
wPrime 2.10 - 32m *
min: 11.565     avg: 16.3     median: 16.2 (3%)     max: 19.4 seconds
min: 15     avg: 15.5     median: 15.1 (3%)     max: 16.614 seconds
WinRAR - Result
min: 2555     avg: 2632     median: 2620 (27%)     max: 2733 KB/s
X264 HD Benchmark 4.0 - Pass 2
min: 16.38     avg: 16.9     median: 17 (10%)     max: 17.21 fps
X264 HD Benchmark 4.0 - Pass 1
min: 88.74     avg: 91     median: 89.4 (31%)     max: 95 fps
TrueCrypt - Serpent Mean 100MB
min: 0.124     avg: 0.1     median: 0.1 (0%)     max: 0.152 GB/s
TrueCrypt - Twofish Mean 100MB
min: 0.198     avg: 0.2     median: 0.3 (0%)     max: 0.27 GB/s
TrueCrypt - AES Mean 100MB
1.6 GB/s (0%)
3DMark 06 - CPU - CPU Score
min: 3039     avg: 3753     median: 3827 (26%)     max: 3884 Points
min: 3882     avg: 3934     median: 3927 (26%)     max: 3978 Points
Super Pi mod 1.5 XS 1M - 1M *
min: 11     avg: 11.4     median: 11 (2%)     max: 14.3 Seconds
min: 11     avg: 11.2     median: 11 (2%)     max: 11.66 Seconds
Super Pi mod 1.5 XS 2M - 2M *
min: 26     avg: 27.3     median: 27 (1%)     max: 32.9 Seconds
min: 25     avg: 26     median: 26 (1%)     max: 27.04 Seconds
Super Pi Mod 1.5 XS 32M - 32M *
min: 620     avg: 685     median: 640.1 (3%)     max: 1098.43 Seconds
min: 604     avg: 626     median: 634 (3%)     max: 639 Seconds
SiSoft Sandra Dhrystone (MIPS)
min: 53030     avg: 55805     median: 53870 (26%)     max: 62450 MIPS
min: 64300     avg: 64523     median: 64545 (31%)     max: 64700 MIPS
SiSoft Sandra Whetstone (MFLOPS)
min: 37790     avg: 37923     median: 37950 (29%)     max: 38000 MFLOPS
min: 39000     avg: 39255     median: 39135 (30%)     max: 39750 MFLOPS
Windows 7 Experience Index - Processor
min: 6.9     avg: 7.1     median: 7.1 (91%)     max: 7.1 points
min: 7     avg: 7.2     median: 7.1 (91%)     max: 7.6 points
3DMark Vantage - P CPU no PhysX 1280x1024
min: 8605     avg: 11161     median: 10271 (14%)     max: 21984 Points
min: 10127     avg: 10509     median: 10559 (15%)     max: 10838 Points
3DMark 11 - Performance Physics 1280x720
min: 3296     avg: 3947     median: 4060 (18%)     max: 4362 points
min: 3902     avg: 4140     median: 4172 (19%)     max: 4320 points
3DMark - Ice Storm Standard Physics 1280x720
26569 Points (17%)
3DMark - Cloud Gate Standard Physics 1280x720
2876 Points (7%)
Geekbench 2 - 32 Bit - Stream
7873 Points (64%)
Geekbench 2 - 32 Bit - Memory
6847 Points (62%)
Geekbench 2 - 32 Bit - Floating Point
7293 Points (14%)
Geekbench 2 - 32 Bit - Integer
6298 Points (13%)
Geekbench 2 - 32 Bit - Total Score
6913 Points (18%)

Average Benchmarks Intel Core i7-2620M → 100%

Average Benchmarks Intel Core i7-2640M → 102%

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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)