Intel Core i7-2620M vs Intel Core i7-2635QM

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 i7-2635QM

► remove Intel 2635QM

The Intel Core i7-2635QM is a fast 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 i7-2635QM is now manufactured in 32nm and offers an integrated graphics card and AES functions. Compared to the faster Core i7, the 2635QM does not support Trusted Execution functions and VT-d (VT-x Virtualization only).

Compared to the Core i7-2630QM, the 2635QM offers a slightly higher Turbo Boost frequency for the GPU (1200MHz versus 1100MHz) and is offered in the BGA Package (2630QM rPGA).

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 i7-2635QM 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 2635QM it is clocked from 650-1200MHz (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.

The performance of the Core i7-2635QM should be about 10-15% faster than a similar clocked Clarksfield Core i7 (see first tests by Anandtech). Therefore, the 2635QM should be on a level (or even faster) than a Core i7-920XM Quad-Core.

Intel Core i7-2620MIntel Core i7-2635QM
Intel Core i7Intel Core i7
Sandy BridgeSandy Bridge
: Core i7 Sandy Bridge
Intel Core i7-2960XM compare2.7 - 3.7 GHz4 / 88 MB
Intel Core i7-2860QM compare2.5 - 3.6 GHz4 / 88 MB
Intel Core i7-2920XM compare2.5 - 3.5 GHz4 / 88 MB
Intel Core i7-2760QM compare2.4 - 3.5 GHz4 / 86 MB
Intel Core i7-2820QM compare2.3 - 3.4 GHz4 / 88 MB
Intel Core i7-2720QM compare2.2 - 3.3 GHz4 / 86 MB
Intel Core i7-2675QM compare2.2 - 3.1 GHz4 / 86 MB
Intel Core i7-2670QM compare2.2 - 3.1 GHz4 / 86 MB
Intel Core i7-2635QM2 - 2.9 GHz4 / 86 MB
Intel Core i7-2630QM compare2 - 2.9 GHz4 / 86 MB
Intel Core i7-2640M compare2.8 - 3.5 GHz2 / 44 MB
» Intel Core i7-2620M2.7 - 3.4 GHz2 / 44 MB
Intel Core i7-2649M compare2.3 - 3.2 GHz2 / 44 MB
Intel Core i7-2629M compare2.1 - 3 GHz2 / 44 MB
Intel Core i7-2677M compare1.8 - 2.9 GHz2 / 44 MB
Intel Core i7-2637M compare1.7 - 2.8 GHz2 / 44 MB
Intel Core i7-2657M compare1.6 - 2.7 GHz2 / 44 MB
Intel Core i7-2617M compare1.5 - 2.6 GHz2 / 44 MB
Intel Core i7-2960XM compare2.7 - 3.7 GHz4 / 88 MB
Intel Core i7-2860QM compare2.5 - 3.6 GHz4 / 88 MB
Intel Core i7-2920XM compare2.5 - 3.5 GHz4 / 88 MB
Intel Core i7-2760QM compare2.4 - 3.5 GHz4 / 86 MB
Intel Core i7-2820QM compare2.3 - 3.4 GHz4 / 88 MB
Intel Core i7-2720QM compare2.2 - 3.3 GHz4 / 86 MB
Intel Core i7-2675QM compare2.2 - 3.1 GHz4 / 86 MB
Intel Core i7-2670QM compare2.2 - 3.1 GHz4 / 86 MB
» Intel Core i7-2635QM2 - 2.9 GHz4 / 86 MB
Intel Core i7-2630QM compare2 - 2.9 GHz4 / 86 MB
Intel Core i7-2640M compare2.8 - 3.5 GHz2 / 44 MB
Intel Core i7-2620M2.7 - 3.4 GHz2 / 44 MB
Intel Core i7-2649M compare2.3 - 3.2 GHz2 / 44 MB
Intel Core i7-2629M compare2.1 - 3 GHz2 / 44 MB
Intel Core i7-2677M compare1.8 - 2.9 GHz2 / 44 MB
Intel Core i7-2637M compare1.7 - 2.8 GHz2 / 44 MB
Intel Core i7-2657M compare1.6 - 2.7 GHz2 / 44 MB
Intel Core i7-2617M compare1.5 - 2.6 GHz2 / 44 MB
2700 - 3400 MHz2000 - 2900 MHz
128 KB256 KB
512 KB1 MB
4 MB6 MB
2 / 44 / 8
35 45
624 995
32 32
149 mm2216 mm2
100 °C100 °C
rPGA988B, BGA1023FCBGA1224
HD Graphics 3000 (650-1300MHz), DDR3-1066/1333 Memory Controller (max 8GB), HyperThreading, AVX, Quick Sync, VirtualizationHD Graphics 3000 (650-1200MHz), DDR-1333 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization
iGPUIntel HD Graphics 3000 (650 - 1300 MHz)Intel HD Graphics 3000 (650 - 1200 MHz)
Architecturex86x86
$346 U.S.
Intel Core i7 2620MIntel Core i7 2635QM

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 2.6     avg: 3     median: 3.1 (6%)     max: 3.11 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 3532     avg: 4200     median: 4333 (39%)     max: 4384
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 7650     avg: 9124     median: 9433 (16%)     max: 9632
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 9634     avg: 11273     median: 11444 (11%)     max: 11711 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 4462     avg: 5325     median: 5412 (41%)     max: 5479 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 494     avg: 525     median: 505 (6%)     max: 593.5 s
wPrime 2.10 - wPrime 2.0 32m *
min: 11.565     avg: 16.3     median: 16.2 (3%)     max: 19.4 s
3DMark 06 - CPU - 3DMark 06 - CPU
min: 3039     avg: 3753     median: 3827 (21%)     max: 3884 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
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
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
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
100%
1 2620M +
min: 53030     avg: 55805     median: 53870 (26%)     max: 62450 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
100%
1 2620M +
min: 37790     avg: 37923     median: 37950 (29%)     max: 38000 MFLOPS
Windows 7 Experience Index - Win7 CPU
min: 6.9     avg: 7.1     median: 7.1 (91%)     max: 7.1 Points
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 8605     avg: 11161     median: 10271 (12%)     max: 21984 Points
3DMark 11 - 3DM11 Performance Physics
min: 3296     avg: 3947     median: 4060 (17%)     max: 4362 Points

Average Benchmarks Intel Core i7-2620M → 100% n=14

Average Benchmarks Intel Core i7-2635QM → 117% n=14

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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)