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Intel Core i7-720QM vs Intel Core i7-820QM vs Intel Core i7-920XM

Intel Core i7-720QM

► remove from comparison Intel 720QM

The Intel Core i7 720QM is a fast quad-core CPU and slowest Core i7 quad core in 2009. It features 4 cores (quad core CPU) and Hyperthreading. Therefore, 8 threads can be worked on simultaneously. Compared to the faster Core i7 mobile CPUs, the 720QM only features 6MB L3 Cache (the faster ones 8 MB).

Because of the Turbo Mode, the CPU is clocked with up to 2.8 GHz and therefore fast for single core applications like older games. Thanks to the 4 cores (and 8 threads), modern multi-threaded applications also profit from this CPU greatly (altough when using all cores, the clock speed remains low).

The Core i7 7xx 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.

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 could reach these high values. Therefore, only large laptops with good cooling solutions can house this CPU.

Intel Core i7-820QM

► remove from comparison Intel 820QM

The Intel Core i7 820QM is a high end quad core CPU in 2009. 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 3.06 GHz 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). 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.

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 i7-920XM

► remove from comparison 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.

ModelIntel Core i7-720QMIntel Core i7-820QMIntel Core i7-920XM
SeriesIntel Core i7Intel Core i7Intel Core i7
CodenameClarksfieldClarksfieldClarksfield
Series: Core i7 Clarksfield
Intel Core i7-940XM2.13 - 3.33 GHz4 / 8 cores8 MB L3
Intel Core i7-920XM2 - 3.2 GHz4 / 8 cores8 MB L3
Intel Core i7-840QM1.86 - 3.2 GHz4 / 8 cores8 MB L3
Intel Core i7-820QM1.73 - 3.06 GHz4 / 8 cores8 MB L3
Intel Core i7-740QM1.73 - 2.93 GHz4 / 8 cores6 MB L3
Intel Core i7-720QM « 1.6 - 2.8 GHz4 / 8 cores6 MB L3
Intel Core i7-940XM2.13 - 3.33 GHz4 / 8 cores8 MB L3
Intel Core i7-920XM2 - 3.2 GHz4 / 8 cores8 MB L3
Intel Core i7-840QM1.86 - 3.2 GHz4 / 8 cores8 MB L3
Intel Core i7-820QM « 1.73 - 3.06 GHz4 / 8 cores8 MB L3
Intel Core i7-740QM1.73 - 2.93 GHz4 / 8 cores6 MB L3
Intel Core i7-720QM1.6 - 2.8 GHz4 / 8 cores6 MB L3
Intel Core i7-940XM2.13 - 3.33 GHz4 / 8 cores8 MB L3
Intel Core i7-920XM « 2 - 3.2 GHz4 / 8 cores8 MB L3
Intel Core i7-840QM1.86 - 3.2 GHz4 / 8 cores8 MB L3
Intel Core i7-820QM1.73 - 3.06 GHz4 / 8 cores8 MB L3
Intel Core i7-740QM1.73 - 2.93 GHz4 / 8 cores6 MB L3
Intel Core i7-720QM1.6 - 2.8 GHz4 / 8 cores6 MB L3
Clock1600 - 2800 MHz1730 - 3060 MHz2000 - 3200 MHz
FSB250025002500
L1 Cache256 KB256 KB256 KB
L2 Cache1 MB1 MB1 MB
L3 Cache6 MB8 MB8 MB
Cores / Threads4 / 84 / 84 / 8
TDP45 Watt45 Watt55 Watt
Transistors774 Million774 Million774 Million
Technology45 nm45 nm45 nm
Die Size296 mm2296 mm2296 mm2
SocketRPGA989RPGA989RPGA989
Architecturex86x86x86
$546 U.S.$546 U.S.$1054 U.S.
Announced
Manufacturerark.intel.comark.intel.comark.intel.com
max. Temp.100 °C100 °C
Features2.5 GT/s DMI, Virtualization Technology, Execute Disable Bit, Enahnced Speedstep Technology, Enhanced Halt State (C1E), 64, Turbo Boost, Hyper-Threading, Trusted Execution Technology

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 2.58     avg: 2.9     median: 2.9 (4%)     max: 2.99 Points
min: 2.95     avg: 3.1     median: 3 (4%)     max: 3.44 Points
min: 3.41     avg: 3.7     median: 3.9 (5%)     max: 3.9 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 2231     avg: 3109     median: 2995 (18%)     max: 3757 Points
min: 3075     avg: 3457     median: 3271.5 (20%)     max: 4185 Points
min: 4310     avg: 4322     median: 4322 (26%)     max: 4334 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 7709     avg: 8760     median: 8357 (6%)     max: 10398 Points
min: 8341     avg: 9174     median: 8559 (6%)     max: 11966 Points
min: 11792     avg: 11916     median: 11916 (9%)     max: 12040 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 9328     avg: 10025     median: 10161 (7%)     max: 10355 Points
min: 10222     avg: 10498     median: 10317 (7%)     max: 11311 Points
min: 11420     avg: 12682     median: 13235 (9%)     max: 13390 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 3420     avg: 3682     median: 3714 (5%)     max: 3952 Points
min: 3709     avg: 3952     median: 3987 (5%)     max: 4101 Points
min: 2633     avg: 3717     median: 4197 (5%)     max: 4320 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 463.4     avg: 804     median: 502 (6%)     max: 1526 s
min: 424     avg: 1140     median: 1361.5 (16%)     max: 1412 s
min: 312     avg: 727     median: 600 (7%)     max: 1269 s
wPrime 2.10 - wPrime 2.0 32m *
min: 14.84     avg: 24.9     median: 16.6 (3%)     max: 47.74 s
min: 13.73     avg: 35.2     median: 42 (8%)     max: 43 s
min: 9.7     avg: 22.8     median: 19 (4%)     max: 39.78 s
3DMark 06 - CPU - 3DMark 06 - CPU
min: 2892     avg: 3098     median: 3100 (7%)     max: 3307 Points
min: 3053     avg: 3226     median: 3149 (7%)     max: 3629 Points
min: 3591     avg: 3816     median: 3797 (8%)     max: 4078 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 15     avg: 15.7     median: 15.6 (3%)     max: 19 s
14 s (3%)
13 s (3%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 34     avg: 36.1     median: 36 (2%)     max: 38 s
min: 31     avg: 31.7     median: 32 (1%)     max: 32 s
31 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 824     avg: 868     median: 851 (4%)     max: 1026 s
min: 765     avg: 787     median: 780 (3%)     max: 817 s
719 s (3%)
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
100%
1 720QM +
min: 40000     avg: 43995     median: 43260 (21%)     max: 49460 MIPS
111%
1 920XM +
48000 MIPS (23%)
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
100%
1 720QM +
min: 32380     avg: 32845     median: 33000 (25%)     max: 33000 MFLOPS
131%
1 920XM +
43210 MFLOPS (33%)
PCMark 05 - PCMark 05 - Standard
100%
1 720QM +
min: 6074     avg: 6957     median: 6910.5 (14%)     max: 7776 Points
112%
1 820QM +
7734 Points (16%)
Windows Vista Experience Index - Windows Vista Leistungsindex - Prozessor
100%
1 720QM +
7 Points (100%)
Windows 7 Experience Index - Win7 CPU
min: 6.9     avg: 7     median: 7 (90%)     max: 7.1 Points
min: 7.1     avg: 7.2     median: 7.2 (92%)     max: 7.2 Points
min: 7.2     avg: 7.3     median: 7.3 (94%)     max: 7.3 Points
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 5822     avg: 10413     median: 10663 (9%)     max: 11155 Points
min: 10851     avg: 11570     median: 11251.5 (10%)     max: 12631 Points
min: 11552     avg: 13318     median: 14150 (12%)     max: 14253 Points
3DMark 11 - 3DM11 Performance Physics
100%
1 720QM +
3936 Points (11%)
102%
1 820QM +
4002 Points (11%)

Average Benchmarks Intel Core i7-720QM → 100% n=13

Average Benchmarks Intel Core i7-820QM → 101% n=13

Average Benchmarks Intel Core i7-920XM → 117% n=13

- 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

v1.26
log 23. 19:46:00

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#4 did not recreate cache, as it is less than 5 days old! Created at Tue, 23 Apr 2024 05:40:15 +0200 +0.001s ... 0.001s

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#7 getting avg benchmarks for device 519 +0.003s ... 0.024s

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#12 got single benchmarks 517 +0.016s ... 0.238s

#13 got avg benchmarks for devices +0s ... 0.238s

#14 min, max, avg, median took s +0.135s ... 0.373s

#15 return log +0s ... 0.373s

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