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LOSTCIRCUITS
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| AMD Athlon64-X2-3800+ The Mancunian Candidate | |
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(Review by MS September 20, 2005) |
| AMD Athlon 64 3800+ (Venice) |
Some Numbers
| Frequency: | 2.0GHz |
| Cache Sizes: | 2 x ( 64KB L1 Data + 64KB L1 Instruction Cache / 512 kB L2 Cache (Exclusive)) |
| CPU to MC: | 2.0 GHz |
| Memory Controller: | Integrated 128-bit memory controller (arbitrated through System Request Interface between cores) |
| Supported Memory: | PC1600, PC2100, PC2700, PC3200 and PC4000* DDR memory |
| HyperTransport Links: | 1 |
| HyperTransport Spec: | 2GHz (2x 1000MHz / DDR) |
| Effective data bandwidth: | 14.4 GB/sec [8GB/sec x1 HyperTransport link + 6.4GB/sec memory bandwidth] |
| Packaging: | 939-pin organic micro-PGA |
| Fab location: | AMD's Fab 30 wafer fabrication facility in Dresden, Germany |
| Process Technology: | 90nm (.09-micron) Silicon on Insulator (SOI) |
| Approx. Transistor count: | 154 million** |
| Approx. Die Size: | 142 mm2 *** |
| Nominal Voltage: | 1.30 V |
| Max Thermal Power: | 110 W**** |
| Max Icc (processor current): | 85 A |
| Max Ambient Case Temp: | 49-63 degrees Celsius |
* the revised memory controller allows to run the memory in pseudosynchronous DDR433 / 466 mode
** The AMD Athlon 64 X2 4200 and 4600 are available in Manchester core and in Toledo core with 1/2 of the L2 cache disabled for yield increase. In the latter case, the transistor count is 229 million.
*** The AMD Athlon 64 X2 4200 and 4600 are available in Manchester core and in Toledo core with 1/2 of the L2 cache disabled for yield increase. In the latter case, the dis size is 199 mm2.
**** In general all AMD (and Intel) power and thermal specs are generated for the top of the line processor in a given stepping to serve as guidelines for the mainboard manufacturers and system integrators, showing worst case scenario. Therefore, lower performance processors will have greatly reduced power consumption compared to the specs when measured in real life environments.
Test Configurations
To put things into perspective, we are using dual and single core configurations for comparison along with a dual processor Opteron system. The point is not to say that one is better than the other, rather it is to give some idea where a given system would currently be, and whether there is really any need for upgrading or not. Every processor and every system has its own strengths and weaknesses and depending on one's preferences, some of the issues will be irrelevant whereas others may influence a purchasing decision -- or not.
"Socket939" Platform:
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"Socket754" Platform:
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Dual "Socket 940" Platform*****:
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"Socket940" Platform**:
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"955X" Platform:
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"925XE" Platform:
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"925X" Platform:
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"875" Platform:
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"855" Platform:
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RAID Level0 (Socket 940) | |||
***** The next generation Socket 940 processors will no longer need Registered ECC memory, rather standard DDR400 will suffice.
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Athlon64 X2-3800+ (dual core) |
next page: => Benchmark Results Overview =>
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