Intel Core i7-2657M vs Intel Core i7-2670QM

Intel Core i7-2657M

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The Intel Core i7-2657M is power efficient ULV (Ultra Low Voltage) processor for thin and light laptops. The base frequency of 1.6 GHz is relatively low, but due to Turbo Boost 2.0, the CPU may clock up to 2.7 GHz (on core loaded, 2.4 GHz with both cores loaded). However, this depends on the cooling and power consumption of the laptop. Due to HyperThreading, the i7-2657M is able to handle 4 threads in parallel. Compared to the slower i7-2617M, the 2657M offers a higher clock speed (processor core and turbo, graphics turbo).

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 350 or 1000MHz (Turbo Boost). Due to the slower clock rate, compared to HD Graphics 3000 in 35W and 45W processors (usually clocked at 650-1100/1300MHz 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. In our benchmarks (see below), the ULV processor was as fast as a Core i3-2310M due to the high Turbo Boost frequencies. 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 2657M CPU in small subnotebooks.

Intel Core i7-2670QM

► remove Intel 2670QM

The Intel Core i7-2670QM 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 2670QM offers higher base and turbo frequencies by 200MHz. Compared to the faster Core i7, the 2670QM 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 2670QM it is clocked from  650-1100MHz (Turbo Boost). The Core i7-2675QM in comparison offers a higher Turbo Boost frequency of 1200MHz 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 i7-2670QM 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 i7-2657MIntel Core i7-2670QM
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 i7-2670QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2635QM (compare)2000 - 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 i7-2620M (compare)2700 - 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 i7-2657M1600 - 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 i7-2670QM2200 - 3100 MHz4 / 86 MB
Intel Core i7-2635QM (compare)2000 - 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 i7-2620M (compare)2700 - 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 i7-2657M1600 - 2700 MHz2 / 44 MB
Intel Core i7-2617M (compare)1500 - 2600 MHz2 / 44 MB
1600 - 2700 MHz2200 - 3100 MHz
128 KB256 KB
512 KB1 MB
4 MB6 MB
2 / 44 / 8
17 45
624 995
32 32
149 mm2216 mm2
100 °C
BGA1023
Turbo 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 BitHD Graphics 3000, DDR-1333 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization (VT-x)
iGPUIntel HD Graphics 3000 (350 - 1000 MHz)Intel HD Graphics 3000 (650 - 1100 MHz)
$317 U.S.
Intel Core i7 2657M

Cinebench R11.5 - CPU Multi 64Bit
1.9 Points (4%)
min: 4     avg: 5.2     median: 5 (11%)     max: 5 Points
Cinebench R10 - Rendering Single 32Bit
3491 Points (36%)
min: 3685     avg: 3879.2     median: 3899 (40%)     max: 3998 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
6229 Points (10%)
min: 14121     avg: 14804.4     median: 14842 (23%)     max: 15164 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
7715 Points (10%)
min: 17228     avg: 17966.8     median: 18076 (24%)     max: 18345 Points
Cinebench R10 - Rendering Single CPUs 64Bit
4376 Points (42%)
min: 4628     avg: 4823.3     median: 4848 (47%)     max: 4960 Points
wPrime 2.0x - 1024m *
min: 303     avg: 321.9     median: 328 (4%)     max: 334 seconds
wPrime 2.0x - 32m *
min: 9     avg: 10.4     median: 10 (2%)     max: 10 seconds
WinRAR - Result
min: 4037     avg: 4149     median: 4140 (49%)     max: 4270 KB/s
X264 HD Benchmark 4.0 - Pass 2
26.6 fps (15%)
X264 HD Benchmark 4.0 - Pass 1
min: 71     avg: 100.8     median: 115 (43%)     max: 115 fps
TrueCrypt - Serpent Mean 100MB
0.3 GB/s (13%)
TrueCrypt - Twofish Mean 100MB
0.5 GB/s (15%)
TrueCrypt - AES Mean 100MB
2.6 GB/s (13%)
3DMark 06 - CPU
2546 Points (17%)
min: 4617     avg: 5333.2     median: 5400 (36%)     max: 5464 Points
Super Pi mod 1.5 XS 1M *
14 Seconds (3%)
12 Seconds (3%)
Super Pi mod 1.5 XS 2M *
32 Seconds (1%)
min: 27     avg: 28.1     median: 28 (1%)     max: 29 Seconds
Super Pi Mod 1.5 XS 32M *
751 Seconds (3%)
min: 665     avg: 677.3     median: 675 (3%)     max: 693 Seconds
SiSoft Sandra Dhrystone (MIPS)
40570 MIPS (19%)
min: 89820     avg: 99008     median: 100470 (48%)     max: 103490 MIPS
SiSoft Sandra Whetstone (MFLOPS)
26000 MFLOPS (20%)
min: 65680     avg: 66132     median: 66000 (51%)     max: 66630 MFLOPS
Windows 7 Experience Index - Processor
6.6 points (94%)
7.5 points (107%)
3DMark Vantage - P CPU no PhysX 1280x1024
7732 Points (11%)
min: 16224     avg: 18128.6     median: 18363 (26%)     max: 18863 Points
3DMark 11 - Performance Physics 1280x720
3102 points (16%)
min: 6064     avg: 6437.4     median: 6490 (33%)     max: 6712 points

Average Benchmarks Intel Core i7-2657M → 100%

Average Benchmarks Intel Core i7-2670QM → 169%

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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)