Intel Core i7-2620M vs Intel Core i7-2820QM vs Intel Core i7-2675QM

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 i7-2675QM

► remove from comparison Intel 2675QM

The Intel Core i7-2675QM is a fast quad core processor for laptops and successor to the popular i7-2630QM. 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 2630QM, the 2675QM offers higher base and turbo frequencies by 200MHz. Compared to the faster Core i7, the 2675QM does not feature the Trusted Execution and the VT-d functions.

Sandy Bridge is the evolutionary successor of the Arrandale architecture. The most noteable improvements are the new 265Bit AVX instructions, the improved Turbo 2.0 and the integration of the graphics card into the 32nm CPU core. 

Der i7-2630QM 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). The Core i7-2630QM in comparison offers a lower Turbo Boost frequency of 1100MHz for the GPU part.

Furthermore, an improved (compared to Clarkdale) 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 i7-2675QM should be only slightly slower than the old Core i7-2720QM that offers only a slightly higher Turbo Boost frequencies. Therefore, even demanding applications and games should run without performance problems.

The quad core CPU is still rated at 45 Watt TDP but now the integrated graphics card is also included (compared to the old Clarksfield Quad Core processors).

Intel Core i7-2620MIntel Core i7-2820QMIntel Core i7-2675QM
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 MHz2200 - 3100 MHz
128 KB256 KB256 KB
512 KB1 MB1 MB
4 MB8 MB6 MB
2 / 44 / 84 / 8
35 45 45
624 995 995
32 32 32
149 mm2216 mm2216 mm2
100 °C100 °C
rPGA988B, BGA1023FCBGA1224, FCPGA988BGA
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, DDR-1333 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization (VT-x)
iGPUIntel HD Graphics 3000 (650 - 1300 MHz)Intel HD Graphics 3000 (650 - 1300 MHz)Intel HD Graphics 3000 (650 - 1200 MHz)
Architecturex86x86x86
$346 U.S.$568 U.S.
Intel Core i7 2620MIntel Core i7 2820QM

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
100%
1 2620M +
min: 2.6     avg: 3     median: 3.1 (6%)     max: 3.11 Points
179%
1 2820QM +
min: 4.41     avg: 5.2     median: 5.5 (11%)     max: 5.81 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
100%
1 2620M +
min: 3532     avg: 4200     median: 4333 (39%)     max: 4384
98%
1 2820QM +
min: 4200     avg: 4274     median: 4249.5 (38%)     max: 4365
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
100%
1 2620M +
min: 7650     avg: 9124     median: 9433 (16%)     max: 9632
159%
1 2820QM +
min: 12641     avg: 14782     median: 15043.5 (25%)     max: 16105
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
100%
1 2620M +
min: 9634     avg: 11273     median: 11444 (11%)     max: 11711 Points
169%
1 2820QM +
min: 16327     avg: 18631     median: 19316 (18%)     max: 20393 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
100%
1 2620M +
min: 4462     avg: 5325     median: 5412 (41%)     max: 5479 Points
99%
1 2820QM +
min: 5232     avg: 5368     median: 5372 (40%)     max: 5468 Points
wPrime 2.10 - wPrime 2.0 1024m *
100%
1 2620M +
min: 494     avg: 525     median: 505 (6%)     max: 593.5 s
102%
1 2820QM +
min: 281     avg: 366     median: 360.2 (4%)     max: 458.561 s
wPrime 2.10 - wPrime 2.0 32m *
100%
1 2620M +
min: 11.565     avg: 16.3     median: 16.2 (3%)     max: 19.4 s
101%
1 2820QM +
min: 8.27     avg: 10.7     median: 10 (2%)     max: 13.635 s
3DMark 06 - CPU - 3DMark 06 - CPU
100%
1 2620M +
min: 3039     avg: 3753     median: 3827 (21%)     max: 3884 Points
152%
1 2820QM +
min: 4427     avg: 5486     median: 5818.5 (32%)     max: 5923 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
100%
1 2620M +
min: 11     avg: 11.4     median: 11 (2%)     max: 14.3 s
100%
1 2820QM +
min: 11     avg: 11.2     median: 11 (2%)     max: 11.6 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
100%
1 2620M +
min: 26     avg: 27.3     median: 27 (1%)     max: 32.9 s
100%
1 2820QM +
min: 23.1     avg: 29.7     median: 25 (1%)     max: 54 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
100%
1 2620M +
min: 620     avg: 685     median: 640.1 (3%)     max: 1098.43 s
100%
1 2820QM +
min: 618     avg: 628     median: 625 (3%)     max: 643.96 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
100%
1 2620M +
min: 53030     avg: 55805     median: 53870 (26%)     max: 62450 MIPS
161%
1 2820QM +
min: 83000     avg: 90497     median: 87000 (41%)     max: 101490 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
100%
1 2620M +
min: 37790     avg: 37923     median: 37950 (29%)     max: 38000 MFLOPS
175%
1 2820QM +
min: 23590     avg: 53623     median: 66280 (51%)     max: 71000 MFLOPS
PCMark 05 - PCMark 05 - Standard
100%
1 2820QM +
13842 Points (87%)
Windows 7 Experience Index - Win7 CPU
100%
1 2620M +
min: 6.9     avg: 7.1     median: 7.1 (91%)     max: 7.1 Points
106%
1 2820QM +
min: 7.4     avg: 7.5     median: 7.5 (96%)     max: 7.5 Points
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
100%
1 2620M +
min: 8605     avg: 11161     median: 10271 (12%)     max: 21984 Points
180%
1 2820QM +
min: 16115     avg: 18441     median: 18520 (21%)     max: 20526 Points
3DMark 11 - 3DM11 Performance Physics
100%
1 2620M +
min: 3296     avg: 3947     median: 4060 (17%)     max: 4362 Points
166%
1 2820QM +
min: 5165     avg: 6335     median: 6724 (28%)     max: 7245 Points
Geekbench 4.0 - Geekbench 4.0 64 Bit Single-Core
100%
1 2675QM +
3100 (48%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Multi-Core
100%
1 2675QM +
10090 (25%)
Geekbench 4.1 - 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
100%
1 2675QM +
3100 (42%)
Geekbench 4.1 - 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
100%
1 2675QM +
9800 (15%)
Geekbench 5.3 - Geekbench 5.1 - 5.3 64 Bit Single-Core
100%
1 2675QM +
536 (30%)
Geekbench 5.3 - Geekbench 5.1 - 5.3 64 Bit Multi-Core
100%
1 2675QM +
1928 (11%)

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

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

Average Benchmarks Intel Core i7-2675QM → NAN% n=

- 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)