AMD Athlon II X4 640 vs Phenom II X6 1055T (125W)
Mini Review
AMD Athlon II X4 640 advantages
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AMD Phenom II X6 1055T (125W) advantages
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640 vs 1055T performance comparison
The charts in the table below illustrate performance of Athlon II X4 640 and Phenom II X6 1055T (125W) microprocessors in different types of tasks. The numbers in the charts are based on a number of benchmarks, that you can find in the "Benchmarks" tab. As such, the displayed results may differ from results, that you may see in individual tests. The 'Overall performance' calculates an average of all-around performance benchmarks, and benchmarks, specific to each type of application. The 'Price-performance ratio' chart displays how much more performance you will get per dollar spent. This ratio does not take into account the cost of other system parts. | |||||||||||||||||||||||||||||
Higher is better |
Higher is better |
Higher is better |
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Higher is better |
Higher is better |
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Complete list of benchmarks, that demonstrate difference in performance between AMD Athlon II X4 640 and AMD Phenom II X6 1055T (125W) in various types of programs, can be seen in the "Benchmarks" tab.
640 vs 1055T power consumption and price comparison
Lower is better |
Lower is better |
Detailed side by side comparison of Athlon II X4 640 vs AMD 1055T specs can be found in the "Specifications" tab. Much more detailed comparison of low level features of both CPUs is located in the "CPUIDs" tab.
Pros and Cons summary
| Athlon II X4 640 | Phenom II X6 1055T (125W) |
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General recommendations: Somewhat more energy efficient,
Considerably lower official price, Significantly better price / performance ratio |
General recommendations: Faster in all kinds of applications
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Drawbacks: Performs somewhat worse in all program types
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Drawbacks: Less energy efficient,
Much more expensive, Significantly worse price / performance ratio |
Similar processors
| Athlon II X4 640 | Phenom II X6 1055T (125W) |
Similar CPUs use the same socket and architecture as AMD Athlon II X4 640 and 1055T.
Where to buy
The CPUs are obsolete. Hence, the best place to look for them is eBay. Third party sellers at Amazon may also have them for sale. | |
Specifications
| AMD Athlon II X4 640 | AMD Phenom II X6 1055T (125W) | |
| Basic details | ||
| Market segment | Desktop | |
|---|---|---|
| Manufacturer | AMD | |
| Family | AMD Athlon II X4 | AMD Phenom II X6 |
| Model number | 640 | 1055T |
| CPU part number | ADX640WFK42GM | HDT55TFBK6DGR |
| Box part number | ADX640WFGMBOX | HDT55TFBGRBOX |
| Introduction date | May 10, 2010 | April 27, 2010 |
| Current official price | $67 (as of Apr 2013) | $153 (as of Jan 2013) |
| CPU features | ||
| Core name | Propus | Thuban |
| Platform name | Leo | |
| Microarchitecture | K10 | |
| Technology (micron) | 0.045 | |
| Data width (bits) | 64 | |
| Socket | Socket AM2+ / Socket AM3 | Socket AM3 |
| Frequency (MHz) | 3000 | 2800 |
| Turbo Frequency (MHz) | 3300 / 3300 / 3300 / - / - / - | |
| Bus speed (MHz) | 2000 (HT/QPI) | |
| Clock Multiplier | 15 | 14 |
| L1 cache | 256 KB (code) / 256 KB (data) | 384 KB (code) / 384 KB (data) |
| L2 cache (KB) | 2048 | 3072 |
| L3 cache (KB) | 6144 | |
| Max temperature (°C) | 55 - 71 | 55 - 62 |
| TDP (Watt) | 95 | 125 |
| Core voltage (V) | 1.1 - 1.4 | 1.15 - 1.475 |
| Cores | 4 | 6 |
| Threads | 4 | 6 |
| Multiprocessing | 1 | |
| Instruction set extensions | ||
| 3DNow! | + | |
| AMD64 / EM64T 64-bit technology | + | |
| MMX | + | |
| SSE | + | |
| SSE2 | + | |
| SSE3 | + | |
| Supported technologies | ||
| PowerNow! / Enhanced SpeedStep | + | |
| Turbo Core / Turbo Boost | - | + |
| Virtualization | + | |
| Virus Protection / Execute Disable bit | + | |
| Integrated Graphics | ||
| GPU Type | None | |
Rows with different specifications or features are highlighted.
For detailed specifications of "AMD Athlon II X4 640" or "AMD Phenom II X6 1055T (125W)" parts please click on the links in the table header.
Benchmarks
System setup
Below is a complete set of AMD Athlon II X4 640 and 1055T (125W) benchmarks from our CPU benchmark database. Both microprocessors were tested on ASRock M3A780GXH/128M motherboard with 2 GB dual-channel Corsair CM3X1024-1333C9 DDR3 memory, and Powercolor 24PRO256M DDR2 (ATI Radeon HD2400) graphics.
All tests were performed at default frequency and voltage, using manufacturer's stock fan/heatsink. None of the components were overclocked. Motherboard BIOS options were left at default settings.
The results of all benchmarks are broken into four categories: multi-threaded, single-threaded, memory intensive and graphics / gaming.
Athlon II X4 640 vs 1055T (125W) single-threaded benchmarks
Single-threaded benchmarks run on a single CPU core, and do not depend on such features as the number of cores, or Hyper-Threading technology. Additionally, they do not utilize on-chip caches, dedicated to other cores.
AMD Athlon II X4 640 AMD Phenom II X6 1055T (125W) | ||
CINEBENCH R10 CPU score (1 core) benchmark | ||
Longer is better  | ||
|---|---|---|
| 100% | ||
| 86.3% | ||
FLAC encoding - single process benchmark | ||
| Longer is better | ||
| 100% | ||
| 91.3% | ||
H.264 video encoding - single process benchmark | ||
| Longer is better | ||
| 100% | ||
| 88.8% | ||
LAME MP3 encoding - single process benchmark | ||
| Longer is better | ||
| 100% | ||
| 91.3% | ||
Super PI (1M) benchmark | ||
 Shorter is better | ||
| 100% | ||
| 78.6% | ||
AMD Athlon II X4 640 AMD Phenom II X6 1055T (125W) | ||
XVid video encoding - single process benchmark | ||
| Longer is better | ||
| 100% | ||
| 86.6% | ||
Athlon II X4 640 vs 1055T (125W) multi-threaded benchmarks
Multi-threaded benchmarks utilize all CPU cores and other on-chip resources (on-chip caches, internal buffers, etc). Intel's Hyper-Threading feature also helps to improve multi-threading performance.
AMD Athlon II X4 640 AMD Phenom II X6 1055T (125W) | ||
Apache web server - dynamic pages benchmark | ||
| Longer is better | ||
|---|---|---|
| 100% | ||
| 89.6% | ||
Apache web server - static pages benchmark | ||
| Longer is better | ||
| 100% | ||
| 83.2% | ||
Blowfish encryption benchmark | ||
| Longer is better | ||
| 100% | ||
| 69.4% | ||
CINEBENCH R10 CPU score benchmark | ||
| Longer is better | ||
| 100% | ||
| 71.1% | ||
CINEBENCH R10 render time (seconds) benchmark | ||
| Shorter is better | ||
| 100% | ||
| 71.0% | ||
AMD Athlon II X4 640 AMD Phenom II X6 1055T (125W) | ||
CrystalMark ALU benchmark | ||
| Longer is better | ||
| 100% | ||
| 93.1% | ||
CrystalMark FPU benchmark | ||
| Longer is better | ||
| 100% | ||
| 93.6% | ||
Euler3D benchmark | ||
| Longer is better | ||
| 100% | ||
| 64.0% | ||
FLAC encoding - multiple processes benchmark | ||
| Longer is better | ||
| 100% | ||
| 71.4% | ||
Fritz Chess Benchmark benchmark | ||
| Longer is better | ||
| 100% | ||
| 71.8% | ||
AMD Athlon II X4 640 AMD Phenom II X6 1055T (125W) | ||
H.264 video encoding - multiple processes benchmark | ||
| Longer is better | ||
| 100% | ||
| 70.3% | ||
H.264 video encoding - multithreaded benchmark | ||
| Longer is better | ||
| 100% | ||
| 67.8% | ||
LAME MP3 encoding - multiple processes benchmark | ||
| Longer is better | ||
| 100% | ||
| 71.4% | ||
MySQL 5.0.27 - selecting data benchmark | ||
| Longer is better | ||
| 100% | ||
| 75.2% | ||
Sandra Dhrystone (MIPS) benchmark | ||
| Longer is better | ||
| 100% | ||
| 71.5% | ||
AMD Athlon II X4 640 AMD Phenom II X6 1055T (125W) | ||
Sandra MultiMedia Floating Point (it/s) benchmark | ||
| Longer is better | ||
| 100% | ||
| 71.4% | ||
Sandra MultiMedia Integer (it/s) benchmark | ||
| Longer is better | ||
| 100% | ||
| 71.1% | ||
Sandra Whetstone (MFLOPS) benchmark | ||
| Longer is better | ||
| 100% | ||
| 71.5% | ||
Sandra Whetstone SSE2 (MFLOPS) benchmark | ||
| Longer is better | ||
| 100% | ||
| 71.4% | ||
XVid video encoding - multiple processes benchmark | ||
| Longer is better | ||
| 100% | ||
| 70.1% | ||
AMD Athlon II X4 640 AMD Phenom II X6 1055T (125W) | ||
wPrime v1.55 (32M) benchmark | ||
| Shorter is better | ||
| 100% | ||
| 71.8% | ||
Athlon II X4 640 vs 1055T (125W) graphics benchmarks
Graphics benchmarks depend on the type of integrated or discrete graphics adapter, and to less extent on the processor performance. Because these benchmarks are synthetic, they may not truly represent gaming performance. However, they still can used to estimate whether one processor will perform faster or slower in games than another CPU.
AMD Athlon II X4 640 AMD Phenom II X6 1055T (125W) | ||
3DMark2001 score benchmark | ||
| Longer is better | ||
|---|---|---|
| 100% | ||
| 98.6% | ||
CINEBENCH R10 OpenGL score benchmark | ||
| Longer is better | ||
| 100% | ||
| 95.2% | ||
Athlon II X4 640 vs 1055T (125W) memory performance
Memory-intensive tests or programs move large amounts of data to/from memory, and they depend more on memory throughput and the size of on-chip caches, rather than on CPU integer/FP/SIMD performance.
AMD Athlon II X4 640 AMD Phenom II X6 1055T (125W) | ||
7Zip compressing/decompressing speed benchmark | ||
| Longer is better | ||
|---|---|---|
| 100% | ||
| 99.4% | ||
CrystalMark Memory benchmark | ||
| Longer is better | ||
| 100% | ||
| 99.2% | ||
WinRAR compressing/decompressing speed benchmark | ||
| Longer is better | ||
| 100% | ||
| 69.0% | ||
CPUIDs
The table below compares two random CPUID records for AMD Athlon II X4 640 and AMD Phenom II X6 1055T (125W) microprocessors, that were submitted to our CPUID database.
| CPUID 1 | CPUID 2 | |
| Manufacturer | AMD | |
|---|---|---|
| CPU Family | Athlon II X4 | Phenom II X6 |
| Model / Processor Number | 640 | 1055T |
| Frequency | 2993 MHz | 2793 MHz |
| CWID version | 0.4 | |
| Part number | ADX640WFK42GM | HDT55TFBK6DGR |
| S-Spec / Stepping Code | CADHC AD 1007DPCW | CCBBE CB 1013CPCW |
| General information | ||
| Vendor | AuthenticAMD | |
| Processor name (BIOS) | AMD Athlon(tm) II X4 640 Processor | AMD Phenom(tm) II X6 1055T Processor |
| Processor name (CWID) | 4 | Phenom II(tm) X6 1055T |
| Cores | 4 | 6 |
| Logical processors | Original OEM Processor | 6 |
| Processor type | BL-C3 | Original OEM Processor |
| Core stepping | 100F53 | PH-E0 |
| CPUID signature | 16 (010h) | 100FA0 |
| Family | 5 (05h) | 16 (010h) |
| Model | 3 (03h) | 10 (0Ah) |
| Stepping | 0 (00h) | |
| Cache | ||
| L1 data: Associativity | 2-way set associative | |
| L1 data: Line size | 64 bytes | |
| L1 data: Lines per tag | 1 | |
| L1 data: Size | 4 x 64 KB | 6 x 64 KB |
| L1 instruction: Associativity | 2-way set associative | |
| L1 instruction: Line size | 64 bytes | |
| L1 instruction: Lines per tag | 1 | |
| L1 instruction: Size | 4 x 64 KB | 6 x 64 KB |
| L2: Associativity | 16-way set associative | |
| L2: Line size | 64 bytes | |
| L2: Lines per tag | 1 | |
| L2: Size | 4 x 512 KB | 6 x 512 KB |
| L3: Associativity | 48-way set associative | |
| L3: Line size | 64 bytes | |
| L3: Lines per tag | 1 | |
| L3: Size | 6 MB | |
| Instruction set extensions | ||
| 3DNow! | + | |
| AMD extensions to MMX | + | |
| Extensions to 3DNow! | + | |
| MMX | + | |
| SSE | + | |
| SSE2 | + | |
| SSE3 | + | |
| SSE4A | + | |
| Additional instructions | ||
| Advanced Bit manipulation | + | |
| CLFLUSH | + | |
| CMOV | + | |
| CMPXCHG16B | + | |
| CMPXCHG8B | + | |
| FXSAVE/FXRSTORE | + | |
| MONITOR/MWAIT | + | |
| POPCNT | + | |
| PREFETCH/PREFETCHW | + | |
| RDTSCP | + | |
| SKINIT / STGI support | + | |
| SYSCALL/SYSRET | + | |
| SYSENTER/SYSEXIT | + | |
| Major features | ||
| 64-bit / Intel 64 | + | |
| NX bit/XD-bit | + | |
| On-chip Floating Point Unit | + | |
| PowerNow! / Cool'n'Quiet | + | |
| Secure Virtual Machine (Virtualization) | + | |
| Turbo Core | - | + |
| Other features | ||
| 1 GB large page support | + | |
| 100MHz multiplier control | + | |
| 128-bit SSE instructions | + | |
| 36-bit page-size extensions | + | |
| Advanced programmable interrupt controller | + | |
| Core multi-processing legacy mode | + | |
| Debugging extensions | + | |
| Extended APIC space | + | |
| Hardware P-state control | + | |
| Hardware thermal control | + | |
| Instruction based sampling | + | |
| LAHF / SAHF support in 64-bit mode | + | |
| LBR virtualization | + | |
| LOCK MOV CR0 means MOV CR8 | + | |
| Machine check architecture | + | |
| Machine check exception | + | |
| Memory-type range registers | + | |
| Misaligned SSE mode | + | |
| Model-specific registers | + | |
| Nested page tables | + | |
| OS visible workaround | + | |
| Page attribute table | + | |
| Page global extension | + | |
| Page-size extensions (4MB pages) | + | |
| Physical address extensions | + | |
| SVM lock | + | |
| Software thermal control | + | |
| Support for NRIP save | + | |
| THERMTRIP | + | |
| TSC rate is ensured to be invariant across all states | + | |
| Temperature sensor | + | |
| Time stamp counter | + | |
| Virtual 8086-mode enhancements | + | |
| Watchdog timer support | + | |
- - feature is not supported
Features, not supported by all processors in the table, are not displayed
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