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Intel Core i7-2649M vs Intel Core i7-2675QM vs Intel Core i7-2820QM

Intel Core i7-2649M

► remove from comparison

The Intel Core i7-2649M is power efficient LV (Low Voltage) processor for laptops. The base frequency of 2.3 GHz is relatively low, but due to Turbo Boost 2.0, the CPU may clock up to 3.2 GHz (one core loaded, 2.9 GHz with both cores loaded). However, this is depending on the cooling and power consumption of the laptop. Due to HyperThreading, the i7-2649M is able to handle 4 threads in parallel. Compared to the similar called Core i7-2620M, the 2649M is slower but also needs less power (25W versus 35W TDP).

Sandy Bridge is the evolutionary successor of the Arrandale architecture. The most noteable improvements is the improved Turbo 2.0 and the integration of the graphics card into the 32nm CPU core. 

The integrated Intel HD Graphics 3000 clocked at 500 or 1100MHz (Turbo Boost). Due to the slower base clock rate, compared to HD Graphics 3000 in 35W and 45W processors (usually clocked at 650), the performance should be a bit lower.

The performance of the CPU should be a bit higher than a similar clocked Arrandale Core i7 LV. Therefore, the performance should a bit above the Core i3-390M if the Turbo can be used often.

The TDP of 25W (includes the integrated GPU and memory controller) allows the use of the 2649M CPU in thin notebooks.

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 i7-2820QM

► 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.

ModelIntel Core i7-2649MIntel Core i7-2675QMIntel Core i7-2820QM
SeriesIntel Core i7Intel Core i7Intel Core i7
CodenameSandy BridgeSandy BridgeSandy Bridge
Series: Core i7 Sandy Bridge
Intel Core i7-2960XM2.7 - 3.7 GHz4 / 8 cores8 MB L3
Intel Core i7-2860QM2.5 - 3.6 GHz4 / 8 cores8 MB L3
Intel Core i7-2920XM2.5 - 3.5 GHz4 / 8 cores8 MB L3
Intel Core i7-2760QM2.4 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-2820QM2.3 - 3.4 GHz4 / 8 cores8 MB L3
Intel Core i7-2720QM2.2 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-2675QM2.2 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-2670QM2.2 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-2635QM2 - 2.9 GHz4 / 8 cores6 MB L3
Intel Core i7-2630QM2 - 2.9 GHz4 / 8 cores6 MB L3
Intel Core i7-2640M2.8 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i7-2620M2.7 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i7-2649M « 2.3 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i7-2629M2.1 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-2677M1.8 - 2.9 GHz2 / 4 cores4 MB L3
Intel Core i7-2637M1.7 - 2.8 GHz2 / 4 cores4 MB L3
Intel Core i7-2657M1.6 - 2.7 GHz2 / 4 cores4 MB L3
Intel Core i7-2617M1.5 - 2.6 GHz2 / 4 cores4 MB L3
Intel Core i7-2960XM2.7 - 3.7 GHz4 / 8 cores8 MB L3
Intel Core i7-2860QM2.5 - 3.6 GHz4 / 8 cores8 MB L3
Intel Core i7-2920XM2.5 - 3.5 GHz4 / 8 cores8 MB L3
Intel Core i7-2760QM2.4 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-2820QM2.3 - 3.4 GHz4 / 8 cores8 MB L3
Intel Core i7-2720QM2.2 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-2675QM « 2.2 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-2670QM2.2 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-2635QM2 - 2.9 GHz4 / 8 cores6 MB L3
Intel Core i7-2630QM2 - 2.9 GHz4 / 8 cores6 MB L3
Intel Core i7-2640M2.8 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i7-2620M2.7 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i7-2649M2.3 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i7-2629M2.1 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-2677M1.8 - 2.9 GHz2 / 4 cores4 MB L3
Intel Core i7-2637M1.7 - 2.8 GHz2 / 4 cores4 MB L3
Intel Core i7-2657M1.6 - 2.7 GHz2 / 4 cores4 MB L3
Intel Core i7-2617M1.5 - 2.6 GHz2 / 4 cores4 MB L3
Intel Core i7-2960XM2.7 - 3.7 GHz4 / 8 cores8 MB L3
Intel Core i7-2860QM2.5 - 3.6 GHz4 / 8 cores8 MB L3
Intel Core i7-2920XM2.5 - 3.5 GHz4 / 8 cores8 MB L3
Intel Core i7-2760QM2.4 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-2820QM « 2.3 - 3.4 GHz4 / 8 cores8 MB L3
Intel Core i7-2720QM2.2 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-2675QM2.2 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-2670QM2.2 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-2635QM2 - 2.9 GHz4 / 8 cores6 MB L3
Intel Core i7-2630QM2 - 2.9 GHz4 / 8 cores6 MB L3
Intel Core i7-2640M2.8 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i7-2620M2.7 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i7-2649M2.3 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i7-2629M2.1 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-2677M1.8 - 2.9 GHz2 / 4 cores4 MB L3
Intel Core i7-2637M1.7 - 2.8 GHz2 / 4 cores4 MB L3
Intel Core i7-2657M1.6 - 2.7 GHz2 / 4 cores4 MB L3
Intel Core i7-2617M1.5 - 2.6 GHz2 / 4 cores4 MB L3
Clock2300 - 3200 MHz2200 - 3100 MHz2300 - 3400 MHz
L1 Cache128 KB256 KB256 KB
L2 Cache512 KB1 MB1 MB
L3 Cache4 MB6 MB8 MB
Cores / Threads2 / 44 / 84 / 8
TDP25 Watt45 Watt45 Watt
Transistors624 Million995 Million995 Million
Technology32 nm32 nm32 nm
Die Size149 mm2216 mm2216 mm2
max. Temp.100 °C100 °C
SocketBGA1023BGAFCBGA1224, FCPGA988
FeaturesHD Graphics 3000 500-1100MHz, integrated DDR3-1333 memory controller, Virtualization, Trusted Execution, Hyper-Threading, Turbo Boost 2.0HD Graphics 3000, DDR-1333 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization (VT-x)HD Graphics 3000 (650-1300MHz), DDR-1066/1333/1600 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization
iGPUIntel HD Graphics 3000 (500 - 1100 MHz)Intel HD Graphics 3000 (650 - 1200 MHz)Intel HD Graphics 3000 (650 - 1300 MHz)
Architecturex86x86x86
Announced
Manufacturerark.intel.comark.intel.com
$568 U.S.

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
100%
1 2820QM +
min: 4.41     avg: 5.2     median: 5.5 (7%)     max: 5.81 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
100%
1 2820QM +
min: 4200     avg: 4274     median: 4249.5 (26%)     max: 4365 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
100%
1 2820QM +
min: 12641     avg: 14782     median: 15043.5 (11%)     max: 16105 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
100%
1 2820QM +
min: 16327     avg: 18631     median: 19316 (13%)     max: 20393 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
100%
1 2820QM +
min: 5232     avg: 5368     median: 5372 (7%)     max: 5468 Points
wPrime 2.10 - wPrime 2.0 1024m *
100%
1 2820QM +
min: 281     avg: 366.3     median: 360.2 (4%)     max: 458.6 s
wPrime 2.10 - wPrime 2.0 32m *
100%
1 2820QM +
min: 8.27     avg: 10.7     median: 10 (2%)     max: 13.64 s
3DMark 06 - CPU - 3DMark 06 - CPU
100%
1 2820QM +
min: 4427     avg: 5486     median: 5818.5 (12%)     max: 5923 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
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 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 2820QM +
min: 618     avg: 628     median: 625 (3%)     max: 644 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
100%
1 2820QM +
min: 83000     avg: 90497     median: 87000 (41%)     max: 101490 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
100%
1 2820QM +
min: 23590     avg: 53623     median: 66280 (51%)     max: 71000 MFLOPS
PCMark 05 - PCMark 05 - Standard
100%
1 2820QM +
13842 Points (29%)
Windows 7 Experience Index - Win7 CPU
100%
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 2820QM +
min: 16115     avg: 18441     median: 18520 (16%)     max: 20526 Points
3DMark 11 - 3DM11 Performance Physics
100%
1 2820QM +
min: 5165     avg: 6335     median: 6724 (18%)     max: 7245 Points
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
100%
1 2675QM +
536 Points (23%)
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
100%
1 2675QM +
1928 Points (3%)
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
100%
1 2675QM +
3100 Points (31%)
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
100%
1 2675QM +
9800 Points (11%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Single-Core
100%
1 2675QM +
3100 Points (42%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Multi-Core
100%
1 2675QM +
10090 Points (25%)

Average Benchmarks Intel Core i7-2675QM → 0% n=

Average Benchmarks Intel Core i7-2820QM → 0% 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

v1.26
log 19. 05:07:50

#0 checking url part for id 1581 +0s ... 0s

#1 checking url part for id 2870 +0s ... 0s

#2 checking url part for id 1501 +0s ... 0s

#3 not redirecting to Ajax server +0s ... 0s

#4 did not recreate cache, as it is less than 5 days old! Created at Sat, 16 Mar 2024 05:37:00 +0100 +0.001s ... 0.001s

#5 composed specs +0.038s ... 0.039s

#6 did output specs +0s ... 0.039s

#7 getting avg benchmarks for device 1581 +0.003s ... 0.042s

#8 got single benchmarks 1581 +0s ... 0.043s

#9 getting avg benchmarks for device 2870 +0.003s ... 0.046s

#10 got single benchmarks 2870 +0.013s ... 0.059s

#11 getting avg benchmarks for device 1501 +0.003s ... 0.062s

#12 got single benchmarks 1501 +0.034s ... 0.096s

#13 got avg benchmarks for devices +0s ... 0.096s

#14 min, max, avg, median took s +0.069s ... 0.164s

#15 return log +0s ... 0.164s

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Redaktion, 2017-09- 8 (Update: 2023-07- 1)