Intel Core i7-3635QM vs Intel Core i7-3940XM

Intel Core i7-3635QM

► remove Intel 3635QM

The Intel Core i7-3635QM is a fast quad-core processor for laptops based on the Ivy Bridge architecture. Due to Hyperthreading, the four cores can handle up to eight threads in parallel leading to better utilization of the CPU. Each core offers a base speed of 2.4 GHz but can dynamically increase clock rates with Turbo Boost up to 3.2 GHz (for 4 active cores), 3.3 GHz (for 2 active cores) and 3.4 GHz (for 1 active core). In contrast to the 3630QM, the 3635QM has a different package (BGA) and a slightly higher GPU clock.

Ivy Bridge is an enhanced die shrink of the Sandy Bridge architecture with improvements on both GPU and CPU performance. The CPUs are produced in 22nm (versus 32nm Sandy Bridge CPUs) and are the first to introduce 3D transistors for increased energy efficiency when compared to similarly clocked Sandy Bridge processors. Other new features are integrated PCI Express 3.0 and  DDR3(L)-1600 support.

The performance of the Core i7-3635QM is slightly above a similarly clocked Sandy Bridge processor due to slight architectural improvements. As a result, overall performance is similar to the fastest Sandy Bridge model, the Core i7-2960XM.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 650 MHz up to 1200 MHz with Turbo Boost, making it one of the faster variants.

As with most quad-core Ivy Bridge models, the Core i7-3635QM is specified at a TDP of 45 Watts including graphics card and memory controller. Therefore, the CPU is well-suited for laptops 15-inches or greater.

Intel Core i7-3940XM

► remove Intel 3940XM

The Intel Core i7-3940XM is the fastest quad-core processor for laptops (at the time of introduction in September 2012) an successor of the i7-3920XM. Due to Hyperthreading, the four cores can handle up to eight threads in parallel leading to better utilization of the CPU. Each core offers a base speed of 3.0 GHz but can dynamically increase clock rates with Turbo Boost up to 3.7 GHz (for 4 active cores), 3.8 GHz (for 2 active cores) and 3.9 GHz (for 1 active core). Furthermore, the Extreme CPUs offer an unlocked multiplicator for easy overclocking.

Ivy Bridge is an enhanced die shrink of the Sandy Bridge architecture with improvements on both GPU and CPU performance. The CPUs are produced in 22nm (versus 32nm Sandy Bridge CPUs) and are the first to introduce 3D transistors for increased energy efficiency when compared to similarly clocked Sandy Bridge processors. Other new features are integrated PCI Express 3.0 and  DDR3(L)-1600 support.

The performance of the Core i7-3940XM should be slightly above a similarly clocked Sandy Bridge processor due to slight architectural improvements. Because of the higher clock speed, the former champion Core i7-3920XM should be outperformed by about 3%.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 650 MHz up to 1350 MHz with Turbo Boost, making it the fastest variant.

The XM CPUs are rated at a TDP of 55 Watts including graphics card and memory controller and therefore 10 Watt higher than the other quad-core models.  Therefore, the CPU is well-suited for laptops 17-inches or greater.

Intel Core i7-3635QMIntel Core i7-3940XM
Intel Core i7Intel Core i7
Ivy BridgeIvy Bridge
: Core i7 Ivy Bridge
Intel Core i7-3940XM3000 - 3900 MHz4 / 88 MB
Intel Core i7-3920XM (compare)2900 - 3800 MHz4 / 88 MB
Intel Core i7-3840QM (compare)2800 - 3800 MHz4 / 88 MB
Intel Core i7-3820QM (compare)2700 - 3700 MHz4 / 88 MB
Intel Core i7-3740QM (compare)2700 - 3700 MHz4 / 86 MB
Intel Core i7-3720QM (compare)2600 - 3600 MHz4 / 86 MB
» Intel Core i7-3635QM2400 - 3400 MHz4 / 86 MB
Intel Core i7-3630QM (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-3615QM (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-3610QM (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-3632QM (compare)2200 - 3200 MHz4 / 86 MB
Intel Core i7-3612QM (compare)2100 - 3100 MHz4 / 86 MB
Intel Core i7-3540M (compare)3000 - 3700 MHz2 / 44 MB
Intel Core i7-3520M (compare)2900 - 3600 MHz2 / 44 MB
Intel Core i7-3687U (compare)2100 - 3300 MHz2 / 44 MB
Intel Core i7-3667U (compare)2000 - 3200 MHz2 / 44 MB
Intel Core i7-3537U (compare)2000 - 3100 MHz2 / 44 MB
Intel Core i7-3517U (compare)1900 - 3000 MHz2 / 44 MB
Intel Core i7-3689Y (compare)1500 - 2600 MHz2 / 44 MB
» Intel Core i7-3940XM3000 - 3900 MHz4 / 88 MB
Intel Core i7-3920XM (compare)2900 - 3800 MHz4 / 88 MB
Intel Core i7-3840QM (compare)2800 - 3800 MHz4 / 88 MB
Intel Core i7-3820QM (compare)2700 - 3700 MHz4 / 88 MB
Intel Core i7-3740QM (compare)2700 - 3700 MHz4 / 86 MB
Intel Core i7-3720QM (compare)2600 - 3600 MHz4 / 86 MB
Intel Core i7-3635QM2400 - 3400 MHz4 / 86 MB
Intel Core i7-3630QM (compare)2400 - 3400 MHz4 / 86 MB
Intel Core i7-3615QM (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-3610QM (compare)2300 - 3300 MHz4 / 86 MB
Intel Core i7-3632QM (compare)2200 - 3200 MHz4 / 86 MB
Intel Core i7-3612QM (compare)2100 - 3100 MHz4 / 86 MB
Intel Core i7-3540M (compare)3000 - 3700 MHz2 / 44 MB
Intel Core i7-3520M (compare)2900 - 3600 MHz2 / 44 MB
Intel Core i7-3687U (compare)2100 - 3300 MHz2 / 44 MB
Intel Core i7-3667U (compare)2000 - 3200 MHz2 / 44 MB
Intel Core i7-3537U (compare)2000 - 3100 MHz2 / 44 MB
Intel Core i7-3517U (compare)1900 - 3000 MHz2 / 44 MB
Intel Core i7-3689Y (compare)1500 - 2600 MHz2 / 44 MB
2400 - 3400 MHz3000 - 3900 MHz
256 KB256 KB
1 MB1 MB
6 MB8 MB
4 / 84 / 8
45 55
1400 1400
22 22
160 mm2160 mm2
105 °C105 °C
BGAFCPGA988
HD Graphics 4000, DDR3(L)-1600 Memory Controller, HyperThreading, AVX, Quick Sync, VirtualizationHD Graphics 4000, DDR3(L)-1600 Memory Controller, HyperThreading, AVX, Quick Sync, Virtualization
iGPUIntel HD Graphics 4000 (650 - 1200 MHz)Intel HD Graphics 4000 (650 - 1350 MHz)
Intel Core i7 3635QM
$1096 U.S.

Cinebench R11.5 - CPU Multi 64Bit
6.4 Points (15%)
7.5 Points (17%)
Cinebench R11.5 - CPU Single 64Bit
1.4 Points (69%)
1.6 Points (81%)
Cinebench R10 - Rendering Single 32Bit
min: 4600     avg: 4648.3     median: 4660 (51%)     max: 4685 Points
min: 5246     avg: 5255     median: 5252 (57%)     max: 5267 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 17688     avg: 17854.7     median: 17865 (27%)     max: 18011 Points
min: 20438     avg: 20582     median: 20564 (31%)     max: 20744 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 21471     avg: 21960.8     median: 22047 (29%)     max: 22277 Points
min: 25475     avg: 25599.7     median: 25624 (34%)     max: 25700 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 5819     avg: 5884.5     median: 5891 (57%)     max: 5937 Points
min: 6506     avg: 6620.7     median: 6669 (64%)     max: 6687 Points
wPrime 2.0x - 1024m *
min: 267     avg: 301.2     median: 276 (3%)     max: 359 seconds
min: 208     avg: 219.2     median: 215 (3%)     max: 233 seconds
wPrime 2.0x - 32m *
min: 8     avg: 9.6     median: 8 (2%)     max: 11 seconds
min: 6     avg: 7     median: 6 (1%)     max: 7 seconds
WinRAR - Result
min: 3855     avg: 4199.5     median: 4199 (49%)     max: 4544 KB/s
min: 3467     avg: 4123.5     median: 4123 (48%)     max: 4780 KB/s
X264 HD Benchmark 4.0 - Pass 2
35.4 fps (1%)
40.6 fps (1%)
X264 HD Benchmark 4.0 - Pass 1
min: 134     avg: 138     median: 138 (51%)     max: 141 fps
161.1 fps (60%)
TrueCrypt - Serpent Mean 100MB
0.2 GB/s (12%)
0.4 GB/s (19%)
TrueCrypt - Twofish Mean 100MB
0.5 GB/s (17%)
0.7 GB/s (22%)
TrueCrypt - AES Mean 100MB
3.1 GB/s (15%)
3.6 GB/s (18%)
3DMark 06 - CPU
min: 6432     avg: 6483.3     median: 6492 (43%)     max: 6517 Points
min: 7166     avg: 7181.7     median: 7176 (48%)     max: 7203 Points
Super Pi mod 1.5 XS 1M *
11.4 Seconds (2%)
9.2 Seconds (2%)
Super Pi mod 1.5 XS 2M *
min: 25     avg: 26.1     median: 25 (1%)     max: 26 Seconds
21.1 Seconds (1%)
Super Pi Mod 1.5 XS 32M *
min: 624     avg: 626.1     median: 625 (3%)     max: 629 Seconds
min: 518     avg: 525.5     median: 525 (2%)     max: 533 Seconds
SiSoft Sandra Dhrystone (MIPS)
min: 110140     avg: 118820     median: 118820 (56%)     max: 127500 MIPS
min: 147240     avg: 147620     median: 147620 (70%)     max: 148000 MIPS
SiSoft Sandra Whetstone (MFLOPS)
min: 80710     avg: 80855     median: 80855 (62%)     max: 81000 MFLOPS
min: 89600     avg: 89630     median: 89630 (69%)     max: 89660 MFLOPS
Windows 7 Experience Index - Processor
7.7 points (110%)
3DMark Vantage - P CPU no PhysX 1280x1024
min: 20530     avg: 21870.5     median: 22225 (31%)     max: 22501 Points
min: 25344     avg: 25795.3     median: 25885 (36%)     max: 26157 Points
3DMark 11 - Performance Physics 1280x720
min: 6023     avg: 6731.8     median: 7054 (36%)     max: 7235 points
min: 7611     avg: 8737     median: 9032 (46%)     max: 9568 points
3DMark - Ice Storm Standard Physics 1280x720
min: 31200     avg: 33452.3     median: 34461 (22%)     max: 34696 Points
48410 Points (31%)
3DMark - Cloud Gate Standard Physics 1280x720
min: 5633     avg: 5721.7     median: 5740 (15%)     max: 5792 Points
7208 Points (18%)
3DMark - Fire Strike Physics 1920x1080
min: 7937     avg: 8037.3     median: 7965 (25%)     max: 8210 Points
9863 Points (30%)
Geekbench 2 - 32 Bit - Stream
8423 Points (68%)
Geekbench 2 - 32 Bit - Memory
7446 Points (68%)
Geekbench 2 - 32 Bit - Floating Point
11831 Points (20%)
Geekbench 2 - 32 Bit - Integer
10805 Points (19%)
Geekbench 2 - 32 Bit - Total Score
10254 Points (24%)

Average Benchmarks Intel Core i7-3635QM → 100%

Average Benchmarks Intel Core i7-3940XM → 112%

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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)