Intel Core i7-2675QM vs Intel Core i7-2640M vs Intel Core i7-2920XM

Intel Core i7-2675QM

► remove 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 i7-2640M

► 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 i7-2920XM

► remove Intel 2920XM

The Intel Core i7-2920XM is the fastest quad-core processor for laptops in Q1-2011. Due to the Extreme Edition branding, the CPU should be easy to overclock (unlocked multiplicator). 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 i7-2920XM is now manufactured in 32nm, offers an integrated graphics card and AES functions. Compared to the slower clocked 2820QM, the 2920XM is specified with a higher TDP.

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 Core i7-2920XM 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.

Due to the high Turbo Boost and Hyperthreading, the performance of the Core i7-2920XM can reach levels of the fast desktop Core i5-2500K processor. Compared to the previous generation, the i7-2920XM is up to 42% faster than the old Core i7-940XM processor. Therefore, the performance should be sufficient for even the most demanding tasks like HD video editing or 3D games. Extensive benchmarks can be found at the end of this page and in our review of the new Sandy Bridge quad core processors.

The high TDP rating of the 2920XM enables the usage of the quad core only in large and heavy laptops (usually 15" and up). Compared to the previous generation of quad-cores, however, the TDP improved, as the integrated GPU is now included.

Intel Core i7-2675QMIntel Core i7-2640MIntel Core i7-2920XM
Intel Core i7Intel Core i7Intel Core i7
Sandy BridgeSandy BridgeSandy Bridge
: Core i7 Sandy Bridge
Intel Core i7-2960XM2700 - 3700 MHz4 / 88 MB
Intel Core i7-2860QM2500 - 3600 MHz4 / 88 MB
Intel Core i7-2920XM2500 - 3500 MHz4 / 88 MB
Intel Core i7-2760QM2400 - 3500 MHz4 / 86 MB
Intel Core i7-2820QM2300 - 3400 MHz4 / 88 MB
Intel Core i7-2720QM2200 - 3300 MHz4 / 86 MB
» Intel Core i7-2675QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2670QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2635QM2000 - 2900 MHz4 / 86 MB
Intel Core i7-2630QM2000 - 2900 MHz4 / 86 MB
Intel Core i7-2640M2800 - 3500 MHz2 / 44 MB
Intel Core i7-2620M2700 - 3400 MHz2 / 44 MB
Intel Core i7-2649M2300 - 3200 MHz2 / 44 MB
Intel Core i7-2629M2100 - 3000 MHz2 / 44 MB
Intel Core i7-2677M1800 - 2900 MHz2 / 44 MB
Intel Core i7-2637M1700 - 2800 MHz2 / 44 MB
Intel Core i7-2657M1600 - 2700 MHz2 / 44 MB
Intel Core i7-2617M1500 - 2600 MHz2 / 44 MB
Intel Core i7-2960XM2700 - 3700 MHz4 / 88 MB
Intel Core i7-2860QM2500 - 3600 MHz4 / 88 MB
Intel Core i7-2920XM2500 - 3500 MHz4 / 88 MB
Intel Core i7-2760QM2400 - 3500 MHz4 / 86 MB
Intel Core i7-2820QM2300 - 3400 MHz4 / 88 MB
Intel Core i7-2720QM2200 - 3300 MHz4 / 86 MB
Intel Core i7-2675QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2670QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2635QM2000 - 2900 MHz4 / 86 MB
Intel Core i7-2630QM2000 - 2900 MHz4 / 86 MB
» Intel Core i7-2640M2800 - 3500 MHz2 / 44 MB
Intel Core i7-2620M2700 - 3400 MHz2 / 44 MB
Intel Core i7-2649M2300 - 3200 MHz2 / 44 MB
Intel Core i7-2629M2100 - 3000 MHz2 / 44 MB
Intel Core i7-2677M1800 - 2900 MHz2 / 44 MB
Intel Core i7-2637M1700 - 2800 MHz2 / 44 MB
Intel Core i7-2657M1600 - 2700 MHz2 / 44 MB
Intel Core i7-2617M1500 - 2600 MHz2 / 44 MB
Intel Core i7-2960XM2700 - 3700 MHz4 / 88 MB
Intel Core i7-2860QM2500 - 3600 MHz4 / 88 MB
» Intel Core i7-2920XM2500 - 3500 MHz4 / 88 MB
Intel Core i7-2760QM2400 - 3500 MHz4 / 86 MB
Intel Core i7-2820QM2300 - 3400 MHz4 / 88 MB
Intel Core i7-2720QM2200 - 3300 MHz4 / 86 MB
Intel Core i7-2675QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2670QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2635QM2000 - 2900 MHz4 / 86 MB
Intel Core i7-2630QM2000 - 2900 MHz4 / 86 MB
Intel Core i7-2640M2800 - 3500 MHz2 / 44 MB
Intel Core i7-2620M2700 - 3400 MHz2 / 44 MB
Intel Core i7-2649M2300 - 3200 MHz2 / 44 MB
Intel Core i7-2629M2100 - 3000 MHz2 / 44 MB
Intel Core i7-2677M1800 - 2900 MHz2 / 44 MB
Intel Core i7-2637M1700 - 2800 MHz2 / 44 MB
Intel Core i7-2657M1600 - 2700 MHz2 / 44 MB
Intel Core i7-2617M1500 - 2600 MHz2 / 44 MB
2200 - 3100 MHz2800 - 3500 MHz2500 - 3500 MHz
256 KB128 KB256 KB
1 MB512 KB1 MB
6 MB4 MB8 MB
4 / 82 / 44 / 8
45 35 55
995 624 995
32 32 32
216 mm2149 mm2216 mm2
BGAFCPGA988
HD Graphics 3000, DDR-1333 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization (VT-x)HD Graphics 3000, DDR3-1066/1333 Memory Controller (max 8GB), HyperThreading, AVX, Quick Sync, VirtualizationHD Graphics 3000 (650-1300MHz), DDR3-1066/1333/1600 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization
iGPUIntel HD Graphics 3000 (650 - 1200 MHz)Intel HD Graphics 3000 (650 - 1300 MHz)Intel HD Graphics 3000 (650 - 1300 MHz)
100 °C100 °C
$346 U.S.$1096 U.S.
Intel Core i7 2920XM

Cinebench R11.5 - CPU Multi 64Bit
3.1 Points (7%)
min: 5     avg: 6     median: 6 (14%)     max: 6 Points
Cinebench R11.5 - CPU Single 64Bit
1.4 Points (68%)
Cinebench R10 - Rendering Single 32Bit
min: 4009     avg: 4382.9     median: 4443 (46%)     max: 4506 Points
min: 4282     avg: 4386.5     median: 4378 (45%)     max: 4507 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 9691     avg: 9765.9     median: 9778 (15%)     max: 9833 Points
min: 16067     avg: 16949.2     median: 17187 (26%)     max: 17355 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 11067     avg: 11766.9     median: 11874 (16%)     max: 12037 Points
min: 19727     avg: 20763     median: 20959 (28%)     max: 21407 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 5445     avg: 5549.1     median: 5534 (51%)     max: 5665 Points
min: 5343     avg: 5525.3     median: 5565 (52%)     max: 5628 Points
wPrime 2.0x - 1024m *
min: 478     avg: 493.5     median: 489 (6%)     max: 523 seconds
min: 264     avg: 276.9     median: 273 (3%)     max: 295 seconds
wPrime 2.0x - 32m *
min: 15     avg: 15.5     median: 15 (3%)     max: 16 seconds
8.5 seconds (2%)
WinRAR - Result
min: 2555     avg: 2632     median: 2620 (31%)     max: 2733 KB/s
min: 3296     avg: 3923     median: 3923 (46%)     max: 4550 KB/s
X264 HD Benchmark 4.0 - Pass 2
min: 16     avg: 16.9     median: 17 (10%)     max: 17 fps
min: 30     avg: 30.8     median: 30 (17%)     max: 31 fps
X264 HD Benchmark 4.0 - Pass 1
min: 88     avg: 91     median: 89 (32%)     max: 95 fps
min: 129     avg: 131.4     median: 131 (47%)     max: 133 fps
TrueCrypt - Serpent Mean 100MB
0.1 GB/s (7%)
0.3 GB/s (15%)
TrueCrypt - Twofish Mean 100MB
0.2 GB/s (8%)
0.5 GB/s (17%)
TrueCrypt - AES Mean 100MB
1.6 GB/s (8%)
min: 2     avg: 3     median: 2 (10%)     max: 3 GB/s
3DMark 06 - CPU
min: 3882     avg: 3933.5     median: 3927 (26%)     max: 3978 Points
min: 5944     avg: 6100     median: 6131 (41%)     max: 6206 Points
Super Pi mod 1.5 XS 1M *
11.2 Seconds (2%)
min: 10     avg: 10.5     median: 10 (2%)     max: 11 Seconds
Super Pi mod 1.5 XS 2M *
min: 25     avg: 26     median: 26 (1%)     max: 27 Seconds
min: 24     avg: 24.6     median: 24 (1%)     max: 25 Seconds
Super Pi Mod 1.5 XS 32M *
min: 604     avg: 626.2     median: 634 (3%)     max: 639 Seconds
min: 580     avg: 599.9     median: 594 (3%)     max: 620 Seconds
SiSoft Sandra Dhrystone (MIPS)
min: 64300     avg: 64522.5     median: 64545 (31%)     max: 64700 MIPS
min: 118300     avg: 121717     median: 121780 (58%)     max: 125070 MIPS
SiSoft Sandra Whetstone (MFLOPS)
min: 39000     avg: 39255     median: 39135 (30%)     max: 39750 MFLOPS
min: 71200     avg: 74190     median: 75680 (58%)     max: 75690 MFLOPS
Windows 7 Experience Index - Processor
7.2 points (103%)
7.6 points (108%)
3DMark Vantage - P CPU no PhysX 1280x1024
min: 10127     avg: 10509.3     median: 10559 (15%)     max: 10838 Points
min: 20540     avg: 21107     median: 21148 (30%)     max: 21592 Points
3DMark 11 - Performance Physics 1280x720
min: 3902     avg: 4140.4     median: 4172 (21%)     max: 4320 points
min: 7804     avg: 7914.5     median: 7914 (41%)     max: 8025 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 (12%)
Geekbench 2 - 32 Bit - Integer
6298 Points (11%)
Geekbench 2 - 32 Bit - Total Score
6913 Points (16%)
Geekbench 4.0 - 64 Bit Multi-Core Score
10090 Points (34%)
Geekbench 4.0 - 64 Bit Single-Core Score
3100 Points (52%)

Average Benchmarks Intel Core i7-2675QM → 100%

Average Benchmarks Intel Core i7-2640M → 100%

Average Benchmarks Intel Core i7-2920XM → 148%

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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)