AMD Athlon 64 X2 microprocessor family
| Previous Generation | Related Family | Next Generation | |
|---|---|---|---|
Athlon 64
Socket 754 Socket 939 Socket AM2 Socket S1 (S1g1) |
Athlon 64 X2
Socket 939 Socket AM2 Socket S1 (S1g1) |
Sempron X2
|
Phenom X4
Socket AM2 Socket AM2+ |
Athlon 64 x2 are dual-core microprocessors best suited for
running multiple applications on one computer. "X2" part in name is
easy to explain - these processors incorporate two Athlon 64 cores on
one die, hence it's an Athlon 64 x2. Having two-cores on one die comes
at a price, though:
- X2 processors have much bigger die size - 218 mm2 for 0.09 micron processors with 1 MB L2 cache. For comparison, Athlon 64 with 1 MB L2 cache has almost two times smaller die size (112.9 mm2).
- Power consumption of two-core CPU is higher. For example, socket AM2 Athlon 64 X2 3800+ has Thermal Design Power 89 Watt, which is 27 Watt more than TDP of Athlon 64 3800+.
Athlon 64 X2 microprocessors have model numbers that show relative performance of the CPU. Because model numbers are calculated based on average of wide range of benchmarks, actual processor performance may differ for Athlon 64 and Athlon 64 X2 processors that have the same model number:
- X2 microprocessors will be faster than single-core Athlon 64 when running multiple applications.
- Single-core CPUs may be faster when running single-threaded programs. This happens because dual-core processors have lower frequency of each core, and, if the application doesn't utilize second core at all, the X2 CPU performs as single-core Athlon 64 running at lower frequency.
Production parts
1.9 GHz
Dual-core
1 MB L2 cache
Socket AM2
Dual-core
1 MB L2 cache
Socket AM2
3800+ (Rating), 2 GHz (actual)
1 MB L2 cache
939-pin lidded organic microPGA
Socket 939
1 MB L2 cache
939-pin lidded organic microPGA
Socket 939
ADA3800IAA5CU has the same basic features as ADA3800DAA5BV, but it requires new socket AM2. Socket AM2 is a socket with 940 pin-holes, and it's not compatible with socket 939 or older 940. Socket AM2 added support for DDR2 memory, which at this time (Nov 2006) may be as twice as fast as DDR1 memory used by socket 939 processors. Faster access to memory results in slightly faster CPU performance. On average, this socket AM2 3800+ is a few percent faster than socket 939 3800+, even though both processors have the same rating. For some memory-intensive applications the difference in speed may be as high as 15-20%.
2 GHz
Dual-core
1 MB L2 cache
Socket AM2
Dual-core
1 MB L2 cache
Socket AM2
3800+ (rating), 2 GHz
1 MB L2 cache
35 Watt TDP
940-pin organic microPGA
Socket AM2
1 MB L2 cache
35 Watt TDP
940-pin organic microPGA
Socket AM2
4000+ (rating), 2.1 GHz
1 MB L2 cache
940-pin organic microPGA
Socket AM2
1 MB L2 cache
940-pin organic microPGA
Socket AM2
4200+ (rating), 2.2 GHz (actual)
1 MB L2 cache
939-pin lidded organic microPGA
Socket 939
1 MB L2 cache
939-pin lidded organic microPGA
Socket 939
ADD4200IAA5DO is the fastest socket AM2 dual-core processor with Thermal Design Power 35 Watt. Because it's an embedded microprocessor, it may be difficult to find one for sale for acceptable price. Other low power options for socket AM motherboards are Athlon 64 X2 3800+ with 35 Watt TDP (somewhat slower, but easier to find), Athlon 64 X2 BE-2400 / 4450e / BE-2450 / 4850e / 5050e (faster, easy to find, but has higher TDP), and embedded Athlon 64 X2 3400+ with 22 Watt TDP (lower power consumption, but slower and difficult to find).
4600+ (rating), 2.4 GHz (actual)
1 MB L2 cache
939-pin lidded organic microPGA
Socket 939
1 MB L2 cache
939-pin lidded organic microPGA
Socket 939
4800+ (rating), 2.4 GHz (actual)
2 MB L2 cache
939-pin lidded organic microPGA
Socket 939
2 MB L2 cache
939-pin lidded organic microPGA
Socket 939
2.6 GHz
Dual-core
1 MB L2 cache
Socket AM2
Dual-core
1 MB L2 cache
Socket AM2
Samples only
2.1 GHz
1MB L2
Engineering sample
1MB L2
Engineering sample
2.4 GHz
2MB L2
Engineering sample
2MB L2
Engineering sample
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At a glance
Type:
64-bit microprocessor
Introduction:
May 31, 2005
Technology (micron):
0.065, 0.09
The number of cores:
2
Frequency (GHz):
1.5 - 3.2
L2 cache size (MB):
0.5 - 2
The smallest Athlon 64 X2 cpu is 3600+
I think there is only one difference between 3600+ and 3800+ that 3600+ has only 2x256KB L2 cache. Frequency is same (2GHz).
tri-core
I don't see any mention of the AMD Tri-cores nor any special mention of the X2 AM2 black edition 5000+ with the unlocked multiplier...did I miss some thing or a mention of these?
What about 6400+ BE ?