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Intel Core i7-2649M vs Intel Core i7-2677M

Intel Core i7-2649M

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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 i7-2677M

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The Intel Core i7-2677M is power efficient ULV (Ultra Low Voltage) processor for thin and light laptops. The base frequency of 1.7 GHz is relatively low, but due to Turbo Boost 2.0, the CPU may clock up to 2.8 GHz (one core loaded, 2.5 GHz with both cores loaded). However, this depends on the cooling and power consumption of the laptop. Due to HyperThreading, the i7-2677M is able to handle 4 threads in parallel.

Sandy Bridge is the evolutionary successor of the Arrandale architecture. The most notable improvements are the 256Bit AVX instructions, 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 350 or 1200MHz (Turbo Boost). Due to the slower clock rate without the Turbo, compared to HD Graphics 3000 in 35W and 45W processors (usually clocked at 650 base speed in non LV processors), the performance should be noticeable lower.

The performance of the CPU should be a bit higher than a similar clocked Arrandale Core i5. Thanks to the high Turbo Boost frequencies, the performance should be similar to the Core i3-2330M. However, the laptop cooling system has to keep the processor relatively cool for the Turbo Boost to work often.

The TDP of 17W (includes the integrated GPU and memory controller) allows the use of the 2677M CPU in small subnotebooks.

ModelIntel Core i7-2649MIntel Core i7-2677M
SeriesIntel Core i7Intel Core i7
CodenameSandy BridgeSandy Bridge
Series: Core i7 Sandy Bridge
Intel Core i7-2960XM compare2.7 - 3.7 GHz4 / 8 cores8 MB L3
Intel Core i7-2860QM compare2.5 - 3.6 GHz4 / 8 cores8 MB L3
Intel Core i7-2920XM compare2.5 - 3.5 GHz4 / 8 cores8 MB L3
Intel Core i7-2760QM compare2.4 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-2820QM compare2.3 - 3.4 GHz4 / 8 cores8 MB L3
Intel Core i7-2720QM compare2.2 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-2675QM compare2.2 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-2670QM compare2.2 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-2635QM compare2 - 2.9 GHz4 / 8 cores6 MB L3
Intel Core i7-2630QM compare2 - 2.9 GHz4 / 8 cores6 MB L3
Intel Core i7-2640M compare2.8 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i7-2620M compare2.7 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i7-2649M « 2.3 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i7-2629M compare2.1 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-2677M1.8 - 2.9 GHz2 / 4 cores4 MB L3
Intel Core i7-2637M compare1.7 - 2.8 GHz2 / 4 cores4 MB L3
Intel Core i7-2657M compare1.6 - 2.7 GHz2 / 4 cores4 MB L3
Intel Core i7-2617M compare1.5 - 2.6 GHz2 / 4 cores4 MB L3
Intel Core i7-2960XM compare2.7 - 3.7 GHz4 / 8 cores8 MB L3
Intel Core i7-2860QM compare2.5 - 3.6 GHz4 / 8 cores8 MB L3
Intel Core i7-2920XM compare2.5 - 3.5 GHz4 / 8 cores8 MB L3
Intel Core i7-2760QM compare2.4 - 3.5 GHz4 / 8 cores6 MB L3
Intel Core i7-2820QM compare2.3 - 3.4 GHz4 / 8 cores8 MB L3
Intel Core i7-2720QM compare2.2 - 3.3 GHz4 / 8 cores6 MB L3
Intel Core i7-2675QM compare2.2 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-2670QM compare2.2 - 3.1 GHz4 / 8 cores6 MB L3
Intel Core i7-2635QM compare2 - 2.9 GHz4 / 8 cores6 MB L3
Intel Core i7-2630QM compare2 - 2.9 GHz4 / 8 cores6 MB L3
Intel Core i7-2640M compare2.8 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i7-2620M compare2.7 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i7-2649M2.3 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i7-2629M compare2.1 - 3 GHz2 / 4 cores4 MB L3
Intel Core i7-2677M « 1.8 - 2.9 GHz2 / 4 cores4 MB L3
Intel Core i7-2637M compare1.7 - 2.8 GHz2 / 4 cores4 MB L3
Intel Core i7-2657M compare1.6 - 2.7 GHz2 / 4 cores4 MB L3
Intel Core i7-2617M compare1.5 - 2.6 GHz2 / 4 cores4 MB L3
Clock2300 - 3200 MHz1800 - 2900 MHz
L1 Cache128 KB128 KB
L2 Cache512 KB512 KB
L3 Cache4 MB4 MB
Cores / Threads2 / 42 / 4
TDP25 Watt17 Watt
Transistors624 Million624 Million
Technology32 nm32 nm
Die Size149 mm2149 mm2
max. Temp.100 °C100 °C
SocketBGA1023BGA1023
FeaturesHD Graphics 3000 500-1100MHz, integrated DDR3-1333 memory controller, Virtualization, Trusted Execution, Hyper-Threading, Turbo Boost 2.0Turbo Boost 2.0, Hyper-Threading, Virtualization VT-x, Virtualization for Directed I/O (VT-d), Trusted Execution, AES, Intel 64, Anti-Theft, My WiFi, Idle States, Enhanced SpeedStep, Thermal Monitorin, Execute Disable Bit
iGPUIntel HD Graphics 3000 (500 - 1100 MHz)Intel HD Graphics 3000 (350 - 1200 MHz)
Architecturex86x86
Announced
Manufacturerark.intel.comark.intel.com
$317 U.S.

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
100%
1 2677M +
2.1 Points (3%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
100%
1 2677M +
3614 Points (22%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
100%
1 2677M +
6672 Points (5%)
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
100%
1 2677M +
7834 Points (5%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
100%
1 2677M +
4527 Points (6%)
wPrime 2.10 - wPrime 2.0 1024m *
100%
1 2677M +
732 s (9%)
wPrime 2.10 - wPrime 2.0 32m *
100%
1 2677M +
19.6 s (4%)
3DMark 06 - CPU - 3DMark 06 - CPU
100%
1 2677M +
2729 Points (6%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
100%
1 2677M +
13 s (3%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
100%
1 2677M +
32 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
100%
1 2677M +
763 s (3%)
Windows 7 Experience Index - Win7 CPU
100%
1 2677M +
6.9 Points (88%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
100%
1 2677M +
6902 Points (6%)

Average Benchmarks Intel Core i7-2677M → 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

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