Intel Core i7-920XM vs Intel Core i7-840QM

Intel Core i7-920XM

► remove Intel 920XM

The Intel Core i7 920XM Extreme Edition is the currently (2009) fastest laptop processor. It features 4 cores (quad core CPU) and Hyperthreading. Therefore, 8 threads can be worked on simultaneously.

Because of the Turbo Mode, the CPU is clocked with up to 3.2 GHz and therefore fast for single core applications.

The Core i7 9xx line has an integrated memory controller for DDR3 bars (1066 or 1333).Therefore, the memory performance is very good (compared to older CPUs with external memory controllers). Still this also leads to the higher TDP of the whole chip.

Core architecture is still very similar to the one used in the Core 2 CPUs.

The power consumption of up to 55 Watt (TDP) is quite high for a laptop CPU and because of the Turbo Mode, the power consumption should reach these high values.

With a starting price of $1054 (when buying 1000 CPUs from Intel), the price tag is quite hefty.

Intel Core i7-840QM

► remove Intel 840QM

The Intel Core i7 840QM is a high end quad core CPU in 2010. It features 4 cores (quad core CPU) and Hyperthreading. Therefore, 8 threads can be worked on simultaneously.

Because of the Turbo Mode, the CPU is clocked with up to 3.2 GHz (if only one core is used, 2.93 for two cores, and 2 ghz with 4 cores) and therefore can perform very well in single core applications like older games.

The Core i7 line has an integrated memory controller for DDR3 bars (1066 or 1333) supporting a maximum of 8 GB. Therefore, the memory performance is very good (compared to older CPUs with external memory controllers). Still, this also leads to the higher TDP of the whole chip. ECC memory is not supported by the 840QM.

The Core micro-architecture is still very similar to the one used in the Core 2 CPUs, therefore the performance per MHz (neglecting the integrated memory controller, hyperthreading and Turbo Boost) is similar.

The power consumption of up to 45 Watt (TDP) is quite high for a laptop CPU and because of the Turbo Mode, the power consumption should reach these high values. Therefore, the CPU is only suited for large laptops.

Intel Core i7-920XMIntel Core i7-840QM
Intel Core i7Intel Core i7
ClarksfieldClarksfield
: Core i7 Clarksfield
Intel Core i7-940XM compare2.13 - 3.33 GHz4 / 88 MB
» Intel Core i7-920XM2 - 3.2 GHz4 / 88 MB
Intel Core i7-840QM1.86 - 3.2 GHz4 / 88 MB
Intel Core i7-820QM compare1.73 - 3.06 GHz4 / 88 MB
Intel Core i7-740QM compare1.73 - 2.93 GHz4 / 86 MB
Intel Core i7-720QM compare1.6 - 2.8 GHz4 / 86 MB
Intel Core i7-940XM compare2.13 - 3.33 GHz4 / 88 MB
Intel Core i7-920XM2 - 3.2 GHz4 / 88 MB
» Intel Core i7-840QM1.86 - 3.2 GHz4 / 88 MB
Intel Core i7-820QM compare1.73 - 3.06 GHz4 / 88 MB
Intel Core i7-740QM compare1.73 - 2.93 GHz4 / 86 MB
Intel Core i7-720QM compare1.6 - 2.8 GHz4 / 86 MB
2000 - 3200 MHz1860 - 3200 MHz
25002500
256 KB256 KB
1 MB1 MB
8 MB8 MB
4 / 84 / 8
55 45
774 774
45 45
296 mm2296 mm2
100 °C100 °C
RPGA989RPGA989
2.5 GT/s DMI, Virtualization Technology, Execute Disable Bit, Enahnced Speedstep Technology, Enhanced Halt State (C1E), 64, Turbo Boost, Hyper-Threading, Trusted Execution Technologyintegrated DDR3-1066/1333 dual-channel memory controller, Turbo Boost, Hyper Threading, Virtualization Technology VT-x / VT-d, Trusted Execution Technology, Intel 64, Idel States, Enhanced Speedstep, Thermal Monitoring, Execute Disable Bit
Architecturex86x86
$1054 U.S.$568 U.S.
Intel Core i7 920XMIntel Core i7 840QM

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 3.41     avg: 3.7     median: 3.9 (8%)     max: 3.9 Points
min: 3.21     avg: 3.3     median: 3.3 (7%)     max: 3.45 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 4310     avg: 4322     median: 4322 (39%)     max: 4334
min: 3354     avg: 3426     median: 3438.5 (31%)     max: 3474
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 11792     avg: 11916     median: 11916 (20%)     max: 12040
min: 9007     avg: 9316     median: 9266 (16%)     max: 9726
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 11420     avg: 12682     median: 13235 (13%)     max: 13390 Points
min: 11085     avg: 11521     median: 11513 (11%)     max: 11857 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 2633     avg: 3717     median: 4197 (32%)     max: 4320 Points
min: 4083     avg: 4200     median: 4199 (32%)     max: 4319 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 312     avg: 727     median: 600 (7%)     max: 1269.32 s
min: 476.677     avg: 1014     median: 1282.4 (15%)     max: 1284.2 s
wPrime 2.10 - wPrime 2.0 32m *
min: 9.7     avg: 22.8     median: 19 (4%)     max: 39.78 s
min: 15.785     avg: 32     median: 40 (8%)     max: 40.2 s
3DMark 06 - CPU - 3DMark 06 - CPU
min: 3591     avg: 3816     median: 3797 (21%)     max: 4078 Points
min: 3435     avg: 3519     median: 3531.5 (20%)     max: 3577 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
13 s (3%)
min: 13     avg: 13.1     median: 13 (3%)     max: 13.26 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
31 s (1%)
min: 29     avg: 29.4     median: 29 (1%)     max: 30.108 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
719 s (3%)
min: 727.71     avg: 734     median: 737 (3%)     max: 738 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
48000 MIPS (23%)
54820 MIPS (26%)
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
43210 MFLOPS (33%)
38190 MFLOPS (29%)
Windows 7 Experience Index - Win7 CPU
min: 7.2     avg: 7.3     median: 7.3 (94%)     max: 7.3 Points
7.2 Points (92%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 11552     avg: 13318     median: 14150 (16%)     max: 14253 Points
min: 12224     avg: 14498     median: 12238 (14%)     max: 19033 Points
3DMark 11 - 3DM11 Performance Physics
100%
1 840QM +
4686 Points (20%)

Average Benchmarks Intel Core i7-920XM → 100% n=15

Average Benchmarks Intel Core i7-840QM → 93% n=15

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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)