AMD Phenom II X4 X940 BE vs AMD Phenom II X4 X920 BE vs AMD Phenom II X4 P920

AMD Phenom II X4 X940 BE

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The AMD Phenom II Black Edition Quad-Core X940 or Phenom II X4 X940 BE is the fastest version of the Phenom II X4 for laptops (in Q1 2011) and features an unlocked multiplier for easy overclocking. With 45W TDP the AMD CPU needs as much power as the Core i7 quad cores but due to the missing level 3 cache and Turbo Boost, the performance should be worse. Compared to the desktop CPUs, the mobile Phenom II X4 is similar to a Athlon II X4 and produced in 45nm SOI.

The performance of the 100MHz slower predecessor Phenom II X920 differs from benchmark to benchmark. If only one core is used, the AMD quad core processor is only on par with a slow 2 GHz Core 2 Duo (e.g. Cinebench R10 Single). The old single threaded SuperPi benchmark is traditionally for AMD even worst on a level of a 1.4 GHz Core 2 Duo. However, if all four cores are used, the performance scores are in regions of the fast dual cores Core i5-540M to i7-640M (Cinebench R10 Multi, wPrieme 2, CB 11.5). The slowest Core i7 quad core (720QM) is still in every benchmark faster than the AMD CPU.

The Phenom II includes an integrated memory controller for DDR3 (max. 1333) main memory. It supports MMX, 3DNow!, SSE, SSE2, SSE3, SSE4A.

AMD Phenom II X4 X920 BE

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The AMD Phenom II X4 X920 BE (Black Edition) Quad Core was the fastest version of the Phenom II X4 for laptops in Q2 2010 and features an unlocked multiplier for easy overclocking. It was later replaced by the 100 MHz higher clocked X940 BE. With 45W TDP the AMD CPU needs as much power as the Core i7 quad cores but due to the missing level 3 cache, the performance should be worse. Compared to the desktop CPUs, the mobile Phenom II X4 is similar to a Athlon II X4 and produced in 45nm SOI.

The performance of the X920 differs from benchmark to benchmark. If only one core is used, the AMD quad core processor is only on par with a slow 2 GHz Core 2 Duo (e.g. Cinebench R10 Single). The old single threaded SuperPi benchmark is traditionally for AMD even worst on a level of a 1.4 GHz Core 2 Duo. However, if all four cores are used, the performance scores are in regions of the fast dual cores Core i5-540M to i7-640M (Cinebench R10 Multi, wPrieme 2, CB 11.5). The slowest Core i7 quad core (720QM) is still in every benchmark faster than the AMD CPU.

The Phenom II includes an integrated memory controller for DDR3 (max. 1333) main memory. It supports MMX, 3DNow!, SSE, SSE2, SSE3, SSE4A.

AMD Phenom II X4 P920

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The AMD Phenom II X4 P920 is a slow clocked quad-core CPU for laptops. Compared to the desktop Phenom II, the mobile Phenom II X4 offer no level 3 cache and are therefore compareable to the desktop Athlon X4 line. The slow clock speed allows the low powerconsumption (25 W TDP) but may lead to a bad performance in single threaded applications and games. For example in the single threaded CB10 test, the P920 only was as fast as a 1.6 GHz Core 2 Duo Dual-Core. In SuperPi even a 1.3 GHz Core 2 Duo was faster. If all four cores are used, the CPU can be as fast as a 2.3-2.4 GHz Core 2 Duo (e.g. T4500). In CB11.5 even as fast as a Core i3-330M. The Core i7-720QM Quad-Core is also rated at 1.6 GHz, but due to Turbo Boost and a large level 3 cache, the 720QM is noticeable faster (and more power hungry).

As the current Intel Core i3 CPUs, the P920 offers an integrated DDR3 memory controller (up to DDR3-1066). However it is still manufactured in 45nm (SOI process).

AMD Phenom II X4 X940 BEAMD Phenom II X4 X920 BEAMD Phenom II X4 P920
AMD Phenom II X4AMD Phenom II X4AMD Phenom II X4
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: Phenom II X4 Champlain
» AMD Phenom II X4 X940 BE2400 MHz4 / 4
AMD Phenom II X4 X920 BE2300 MHz4 / 4
AMD Phenom II X4 N9702200 MHz4 / 4
AMD Phenom II X4 N9502100 MHz4 / 4
AMD Phenom II X4 N9302000 MHz4 / 4
AMD Phenom II X4 P9601800 MHz4 / 4
AMD Phenom II X4 P9401700 MHz4 / 4
AMD Phenom II X4 P9201600 MHz4 / 4
AMD Phenom II X4 X940 BE2400 MHz4 / 4
» AMD Phenom II X4 X920 BE2300 MHz4 / 4
AMD Phenom II X4 N9702200 MHz4 / 4
AMD Phenom II X4 N9502100 MHz4 / 4
AMD Phenom II X4 N9302000 MHz4 / 4
AMD Phenom II X4 P9601800 MHz4 / 4
AMD Phenom II X4 P9401700 MHz4 / 4
AMD Phenom II X4 P9201600 MHz4 / 4
AMD Phenom II X4 X940 BE2400 MHz4 / 4
AMD Phenom II X4 X920 BE2300 MHz4 / 4
AMD Phenom II X4 N9702200 MHz4 / 4
AMD Phenom II X4 N9502100 MHz4 / 4
AMD Phenom II X4 N9302000 MHz4 / 4
AMD Phenom II X4 P9601800 MHz4 / 4
AMD Phenom II X4 P9401700 MHz4 / 4
» AMD Phenom II X4 P9201600 MHz4 / 4
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S1S1S1 (S1g4)
integrated DDR3-1333 memory controller, HyperTransport 3.0, Enhanced Virus Protection, AMD64, SSE4A, unlocked multiplierintegrated DDR3-1333 memory controller, HyperTransport 3.0, Enhanced Virus Protection, AMD64, SSE4A, unlocked multiplierMMX, 3DNow, SSE (1,2,3,4A), AMD64, Enhanced Virus Protection, Virtualization, integrated DDR3-1066 memory controller, HyperTransport 3.0
AMD Phenom II X4 X940 BEAMD Phenom II X4 X920 BEAMD Phenom II X4 P920

Cinebench R11.5 - CPU Multi 64Bit
2.6 Points (6%)
1.8 Points (4%)
Cinebench R10 - Rendering Single 32Bit
min: 1878     avg: 1940.3     median: 1935 (20%)     max: 2008 Points
min: 1371     avg: 1604.3     median: 1395 (14%)     max: 2047 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 6900     avg: 7047.7     median: 7082 (11%)     max: 7161 Points
min: 3965     avg: 4700.3     median: 5042 (8%)     max: 5094 Points
Cinebench R10 - Rendering Multiple CPUs 64Bit
min: 8276     avg: 8390.5     median: 8390 (11%)     max: 8505 Points
min: 6065     avg: 6089     median: 6089 (8%)     max: 6113 Points
Cinebench R10 - Rendering Single CPUs 64Bit
min: 2362     avg: 2379     median: 2379 (23%)     max: 2396 Points
min: 1734     avg: 1743     median: 1743 (17%)     max: 1752 Points
wPrime 2.0x - 1024m *
min: 528     avg: 540.2     median: 540 (6%)     max: 552 seconds
min: 767     avg: 767.5     median: 767 (9%)     max: 768 seconds
wPrime 2.0x - 32m *
min: 16     avg: 17.5     median: 17 (3%)     max: 18 seconds
24 seconds (5%)
wPrime 1.55 - 32m *
17.1 seconds (9%)
3DMark 06 - CPU
min: 3118     avg: 3241.3     median: 3164 (21%)     max: 3442 Points
min: 1863     avg: 2082.5     median: 2082 (14%)     max: 2302 Points
Super Pi mod 1.5 XS 1M *
min: 24     avg: 30.5     median: 33 (7%)     max: 33 Seconds
min: 46     avg: 46.6     median: 46 (10%)     max: 47 Seconds
Super Pi mod 1.5 XS 2M *
min: 76     avg: 76.7     median: 76 (3%)     max: 77 Seconds
100%
P920 +
min: 46     avg: 76.8     median: 77 (3%)     max: 107 Seconds
Super Pi Mod 1.5 XS 32M *
1793.4 Seconds (8%)
min: 2476     avg: 2488     median: 2488 (11%)     max: 2500 Seconds
SiSoft Sandra Dhrystone (MIPS)
100%
P920 +
min: 16680     avg: 20480     median: 20480 (10%)     max: 24280 MIPS
SiSoft Sandra Whetstone (MFLOPS)
100%
P920 +
min: 13310     avg: 15720     median: 15720 (12%)     max: 18130 MFLOPS
PCMark 05 - Standard 1024x768
4683 Points (29%)
115%
P920 +
5398 Points (34%)
Windows 7 Experience Index - Processor
100%
P920 +
6.2 points (89%)
3DMark Vantage - P CPU no PhysX 1280x1024
7671 Points (11%)
min: 5353     avg: 5383.5     median: 5383 (8%)     max: 5414 Points

Average Benchmarks AMD Phenom II X4 X920 BE → 100%

Average Benchmarks AMD Phenom II X4 P920 → 86%

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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)