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Intel Core i7-3920XM vs Intel Core i7-3840QM

Intel Core i7-3920XM

► remove from comparison Intel 3920XM

The Intel Core i7-3920XM is the fastest quad-core processor for laptops based on the Ivy Bridge architecture at the time of introduction in April 2012. 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 2.9 GHz but can dynamically increase clock rates with Turbo Boost up to 3.6 GHz (for 4 active cores), 3.7 GHz (for 2 active cores) and 3.8 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 i7-3920XM is slightly (~5 %) above a similarly clocked Sandy Bridge processor due to slight architectural improvements. Therefore, and because of the higher clock speed, the former champion Core i7-2960XM is easily outperformed by 10 to 15%.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 650 MHz up to 1300 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 i7-3840QM

► remove from comparison Intel 3840QM

The Intel Core i7-3840QM is a fast quad-core processor for laptops based on the Ivy Bridge architecture and successor of the i7-3820QM. 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 2.8 GHz but can dynamically increase clock rates with Turbo Boost up to 3.6 GHz (for 4 active cores), 3.7 GHz (for 2 active cores) and 3.8 GHz (for 1 active core). Furthermore, the CPU offers 8 MB Last Level 3 Cache.

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 i7-3840QM should be slightly above a similarly clocked Sandy Bridge processor due to slight architectural improvements. Overall, performance should be similar to the Core i7-3920XM.

The integrated Intel HD Graphics 4000 offers 16 Execution Units (EUs) clocked at 650 MHz up to 1300 MHz with Turbo Boost, making it one of the faster variants.

As with most quad-core Ivy Bridge models, the Core i7-3840QM 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.

ModelIntel Core i7-3920XMIntel Core i7-3840QM
SeriesIntel Core i7Intel Core i7
CodenameIvy BridgeIvy Bridge
Series: Core i7 Ivy Bridge
Intel Core i7-3940XM compare3 - 3.9 GHz4 / 88 MB
» Intel Core i7-3920XM2.9 - 3.8 GHz4 / 88 MB
Intel Core i7-3840QM2.8 - 3.8 GHz4 / 88 MB
Intel Core i7-3820QM compare2.7 - 3.7 GHz4 / 88 MB
Intel Core i7-3740QM compare2.7 - 3.7 GHz4 / 86 MB
Intel Core i7-3720QM compare2.6 - 3.6 GHz4 / 86 MB
Intel Core i7-3635QM compare2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-3630QM compare2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-3615QM compare2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-3610QM compare2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-3632QM compare2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-3612QM compare2.1 - 3.1 GHz4 / 86 MB
Intel Core i7-3540M compare3 - 3.7 GHz2 / 44 MB
Intel Core i7-3520M compare2.9 - 3.6 GHz2 / 44 MB
Intel Core i7-3687U compare2.1 - 3.3 GHz2 / 44 MB
Intel Core i7-3667U compare2 - 3.2 GHz2 / 44 MB
Intel Core i7-3537U compare2 - 3.1 GHz2 / 44 MB
Intel Core i7-3517U compare1.9 - 3 GHz2 / 44 MB
Intel Core i7-3689Y compare1.5 - 2.6 GHz2 / 44 MB
Intel Core i7-3940XM compare3 - 3.9 GHz4 / 88 MB
Intel Core i7-3920XM2.9 - 3.8 GHz4 / 88 MB
» Intel Core i7-3840QM2.8 - 3.8 GHz4 / 88 MB
Intel Core i7-3820QM compare2.7 - 3.7 GHz4 / 88 MB
Intel Core i7-3740QM compare2.7 - 3.7 GHz4 / 86 MB
Intel Core i7-3720QM compare2.6 - 3.6 GHz4 / 86 MB
Intel Core i7-3635QM compare2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-3630QM compare2.4 - 3.4 GHz4 / 86 MB
Intel Core i7-3615QM compare2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-3610QM compare2.3 - 3.3 GHz4 / 86 MB
Intel Core i7-3632QM compare2.2 - 3.2 GHz4 / 86 MB
Intel Core i7-3612QM compare2.1 - 3.1 GHz4 / 86 MB
Intel Core i7-3540M compare3 - 3.7 GHz2 / 44 MB
Intel Core i7-3520M compare2.9 - 3.6 GHz2 / 44 MB
Intel Core i7-3687U compare2.1 - 3.3 GHz2 / 44 MB
Intel Core i7-3667U compare2 - 3.2 GHz2 / 44 MB
Intel Core i7-3537U compare2 - 3.1 GHz2 / 44 MB
Intel Core i7-3517U compare1.9 - 3 GHz2 / 44 MB
Intel Core i7-3689Y compare1.5 - 2.6 GHz2 / 44 MB
Clock2900 - 3800 MHz2800 - 3800 MHz
L1 Cache256 KB256 KB
L2 Cache1 MB1 MB
L3 Cache8 MB8 MB
Cores / Threads4 / 84 / 8
TDP55 Watt45 Watt
Transistors1400 Million1400 Million
Technology22 nm22 nm
Die Size160 mm2160 mm2
max. Temp.105 °C105 °C
SocketFCPGA988
FeaturesHD 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 - 1300 MHz)Intel HD Graphics 4000 (650 - 1300 MHz)
Architecturex86x86
$1096 U.S.$568 U.S.
Announced
ManufacturerIntel Core i7 3920XM

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 6.89     avg: 7.1     median: 7.1 (13%)     max: 7.22 Points
min: 7     avg: 7.1     median: 7.1 (13%)     max: 7.15 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 1.53     avg: 1.6     median: 1.6 (5%)     max: 1.58 Points
min: 1.58     avg: 1.6     median: 1.6 (5%)     max: 1.59 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 5045     avg: 5078     median: 5078 (45%)     max: 5111 Points
min: 5137     avg: 5145     median: 5144.5 (46%)     max: 5152 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 19595     avg: 19653     median: 19652.5 (27%)     max: 19710 Points
min: 20132     avg: 20135     median: 20135 (28%)     max: 20138 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 19756     avg: 23050     median: 24647 (22%)     max: 24748 Points
min: 25111     avg: 25178     median: 25178 (22%)     max: 25245 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 5132     avg: 6011     median: 6416 (39%)     max: 6484 Points
min: 6405     avg: 6478     median: 6478 (40%)     max: 6551 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 220.9     avg: 241.8     median: 241.8 (3%)     max: 262.7 s
min: 245     avg: 246.3     median: 246.3 (3%)     max: 247.5 s
wPrime 2.10 - wPrime 2.0 32m *
min: 7.412     avg: 7.5     median: 7.5 (2%)     max: 7.539 s
min: 7.348     avg: 7.4     median: 7.4 (1%)     max: 7.441 s
WinRAR - WinRAR 4.0
4570 Points (26%)
4712 Points (27%)
X264 HD Benchmark 4.0 - x264 Pass 2
min: 37.1     avg: 38     median: 38 (17%)     max: 38.9 fps
min: 37.11     avg: 38.2     median: 38.2 (17%)     max: 39.23 fps
X264 HD Benchmark 4.0 - x264 Pass 1
min: 156.4     avg: 156.7     median: 156.7 (43%)     max: 157 fps
min: 156.2     avg: 157.8     median: 157.8 (43%)     max: 159.4 fps
TrueCrypt - TrueCrypt Serpent
min: 0.366     avg: 0.4     median: 0.4 (0%)     max: 0.373 GB/s
min: 0.375     avg: 0.4     median: 0.4 (0%)     max: 0.376 GB/s
TrueCrypt - TrueCrypt Twofish
min: 0.562     avg: 0.6     median: 0.6 (0%)     max: 0.633 GB/s
min: 0.638     avg: 0.6     median: 0.6 (0%)     max: 0.642 GB/s
TrueCrypt - TrueCrypt AES
min: 3.5     avg: 3.6     median: 3.6 (0%)     max: 3.6 GB/s
3.6 GB/s (0%)
3DMark 06 - CPU - 3DMark 06 - CPU
min: 6793     avg: 6935     median: 6973 (15%)     max: 7039 Points
min: 6946     avg: 6998     median: 6998 (15%)     max: 7050 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 9     avg: 9.4     median: 9 (2%)     max: 10.11 s
min: 9     avg: 9.4     median: 9.4 (2%)     max: 9.703 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 22     avg: 22.3     median: 22 (1%)     max: 22.98 s
min: 21.97     avg: 22     median: 22 (1%)     max: 22 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 531     avg: 534     median: 534 (2%)     max: 537 s
541 s (2%)
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
min: 115400     avg: 129935     median: 129935 (62%)     max: 144470 MIPS
124100 MIPS (59%)
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
min: 83580     avg: 85345     median: 85345 (65%)     max: 87110 MFLOPS
85000 MFLOPS (65%)
Windows 7 Experience Index - Win7 CPU
7.7 Points (99%)
7.7 Points (99%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 24085     avg: 24928     median: 25094 (26%)     max: 25605 Points
min: 24545     avg: 24741     median: 24740.5 (25%)     max: 24936 Points
3DMark 11 - 3DM11 Performance Physics
9329 Points (32%)
min: 7360     avg: 7787     median: 7786.5 (27%)     max: 8213 Points

Average Benchmarks Intel Core i7-3920XM → 100% n=22

Average Benchmarks Intel Core i7-3840QM → 101% n=22

- 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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show all (including archived), 2022, 2021
v1.18
log 29. 20:32:23

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)