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 (compare)2700 - 3700 MHz4 / 88 MB
Intel Core i7-2860QM (compare)2500 - 3600 MHz4 / 88 MB
Intel Core i7-2920XM (compare)2500 - 3500 MHz4 / 88 MB
Intel Core i7-2760QM (compare)2400 - 3500 MHz4 / 86 MB
Intel Core i7-2820QM (compare)2300 - 3400 MHz4 / 88 MB
Intel Core i7-2720QM (compare)2200 - 3300 MHz4 / 86 MB
Intel Core i7-2675QM (compare)2200 - 3100 MHz4 / 86 MB
Intel Core i7-2670QM (compare)2200 - 3100 MHz4 / 86 MB
Intel Core i7-2635QM2000 - 2900 MHz4 / 86 MB
Intel Core i7-2630QM (compare)2000 - 2900 MHz4 / 86 MB
Intel Core i7-2640M (compare)2800 - 3500 MHz2 / 44 MB
» Intel Core i7-2620M2700 - 3400 MHz2 / 44 MB
Intel Core i7-2649M (compare)2300 - 3200 MHz2 / 44 MB
Intel Core i7-2629M (compare)2100 - 3000 MHz2 / 44 MB
Intel Core i7-2677M (compare)1800 - 2900 MHz2 / 44 MB
Intel Core i7-2637M (compare)1700 - 2800 MHz2 / 44 MB
Intel Core i7-2657M (compare)1600 - 2700 MHz2 / 44 MB
Intel Core i7-2617M (compare)1500 - 2600 MHz2 / 44 MB
Intel Core i7-2960XM (compare)2700 - 3700 MHz4 / 88 MB
Intel Core i7-2860QM (compare)2500 - 3600 MHz4 / 88 MB
Intel Core i7-2920XM (compare)2500 - 3500 MHz4 / 88 MB
Intel Core i7-2760QM (compare)2400 - 3500 MHz4 / 86 MB
Intel Core i7-2820QM (compare)2300 - 3400 MHz4 / 88 MB
Intel Core i7-2720QM (compare)2200 - 3300 MHz4 / 86 MB
Intel Core i7-2675QM (compare)2200 - 3100 MHz4 / 86 MB
Intel Core i7-2670QM (compare)2200 - 3100 MHz4 / 86 MB
» Intel Core i7-2635QM2000 - 2900 MHz4 / 86 MB
Intel Core i7-2630QM (compare)2000 - 2900 MHz4 / 86 MB
Intel Core i7-2640M (compare)2800 - 3500 MHz2 / 44 MB
Intel Core i7-2620M2700 - 3400 MHz2 / 44 MB
Intel Core i7-2649M (compare)2300 - 3200 MHz2 / 44 MB
Intel Core i7-2629M (compare)2100 - 3000 MHz2 / 44 MB
Intel Core i7-2677M (compare)1800 - 2900 MHz2 / 44 MB
Intel Core i7-2637M (compare)1700 - 2800 MHz2 / 44 MB
Intel Core i7-2657M (compare)1600 - 2700 MHz2 / 44 MB
Intel Core i7-2617M (compare)1500 - 2600 MHz2 / 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)
$346 U.S.
Intel Core i7 2620MIntel Core i7 2635QM

Cinebench R11.5 - CPU Multi 64Bit
min: 2     avg: 3     median: 3 (7%)     max: 3 Points
4.7 Points (11%)
Cinebench R10 - Rendering Single 32Bit
min: 3532     avg: 4200.4     median: 4333 (45%)     max: 4384 Points
min: 3677     avg: 3696.6     median: 3699 (38%)     max: 3699 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 7650     avg: 9124.2     median: 9433 (14%)     max: 9632 Points
min: 13045     avg: 13521.4     median: 13581 (21%)     max: 13581 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 9634     avg: 11272.8     median: 11444 (15%)     max: 11711 Points
15522 Points (20%)
Cinebench R10 - Rendering Single CPUs 64Bit
min: 4462     avg: 5324.6     median: 5412 (52%)     max: 5479 Points
4583 Points (44%)
wPrime 2.0x - 1024m *
min: 494     avg: 525.1     median: 505 (6%)     max: 593 seconds
486 seconds (6%)
wPrime 2.0x - 32m *
min: 11     avg: 16.3     median: 16 (3%)     max: 19 seconds
15 seconds (3%)
3DMark 06 - CPU
min: 3039     avg: 3753.1     median: 3827 (26%)     max: 3884 Points
4906 Points (33%)
Super Pi mod 1.5 XS 1M *
min: 11     avg: 11.5     median: 11 (2%)     max: 14 Seconds
14 Seconds (3%)
Super Pi mod 1.5 XS 2M *
min: 26     avg: 27.3     median: 27 (1%)     max: 32 Seconds
31 Seconds (1%)
Super Pi Mod 1.5 XS 32M *
min: 620     avg: 685.4     median: 640 (3%)     max: 1098 Seconds
719 Seconds (3%)
SiSoft Sandra Dhrystone (MIPS)
min: 53030     avg: 55805     median: 53870 (26%)     max: 62450 MIPS
SiSoft Sandra Whetstone (MFLOPS)
min: 37790     avg: 37922.5     median: 37950 (29%)     max: 38000 MFLOPS
Windows 7 Experience Index - Processor
min: 6     avg: 7.1     median: 7 (100%)     max: 7 points
7.4 points (106%)
3DMark Vantage - P CPU no PhysX 1280x1024
min: 8605     avg: 11160.9     median: 10271 (14%)     max: 21984 Points
16710 Points (23%)
3DMark 11 - Performance Physics 1280x720
min: 3296     avg: 3946.6     median: 4060 (21%)     max: 4362 points
5658 points (29%)

Average Benchmarks Intel Core i7-2620M → 100%

Average Benchmarks Intel Core i7-2635QM → 115%

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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)