CPU: AMD Athlon 3400+ 64-bit Processing :: The AMD Athlon 64 3400+

01-09-2004 · Category: Hardware - Processors

By Doc Overclock
CPU: AMD Athlon 3400+ 64-bit Processing
CPU: AMD Athlon 3400+ 64-bit Processing

Even though this is a new CPU there is relatively nothing new to say about this that has not been said in our review of the 3200+ as this is the same core as that chip only with a slight speed increase. The CPU is still based around 105.9 million transistors, and measures 193 square millimeters. The core is made up of 128KB of L1 cache divided into 64KB each of data and instruction storage, along with 1MB of exclusive L2 cache. The CPU utilizes the Socket 754 interface and uses a single channel of DDR400 memory that provides up to 3.2GB per second of memory bandwidth. The CPU also has a single HyperTransport link used to communicate with the chipsets core logic. The memory controller is inside the Athlon 64 architecture which differs from previous design technology and offer's better performance.

CPU: AMD Athlon 3400+ 64-bit Processing

One thing that really will be appealing to the consumer is the fact that the Athlon 64 series in comparison with its FX counterpart can use standard memory allocations in lieu of the FX limitations which allows only Registered ECC memory in order to work properly. Having all the features of a P4 and more, the instructions set of the 3400+ will be hard to keep down especially since it can run both 32 and 64-Bit code in its native running environment. No one thought a year ago that AMD could pull this off, be in the CPU lead, both price and performance wise not to mention offer an entry level 64-Bit CPU the 3000+ for around $200. The 3000+ based on the Newcastle core was quite a surprise cutting the L2 cache down to 512KB in lieu of the Claw Hammers 1MB. AMD is showing a strong hand coming into 2004 and things are looking good from a consumer's standpoint. The roadmap below shows AMD's current plans for upcoming CPU technologies.

CPU: AMD Athlon 3400+ 64-bit Processing

AMD's current CPU roadmap

The AMD64 core provides leading-edge 32-bit performance and support for future 64-bit applications

  • AMD64 technology provides full speed support for x86 code base for uncompromising 32-bit performance, with readiness for 64-bit applications
  • 40-bit physical addresses, 48-bit virtual addresses
  • Eight new (sixteen total) 64-bit integer registers
  • Eight new (sixteen total) 128-bit SSE/SSE2 registers
  • Including support for 3DNow!™ Professional technology and SSE2

A high-bandwidth, low-latency integrated DDR memory controller

  • Supports PC3200, PC2700, PC2100 or PC1600 DDR SDRAM
  • Unbuffered DIMMs
  • 72-bit DDR SDRAM memory (64-bit interface + 8-bit ECC)
  • Up to 3.2 GB/s memory bandwidth
  • ECC protection enables increased system reliability

HyperTransport™ technology for high speed I/O communication

  • One 16-bit link up to 1600MHz
  • Up to 6.4GB/s HyperTransport™ I/O bandwidth
  • Up to 9.6GB/s total delivered processor-to-system bandwidth

Large high performance on-chip cache

  • 64KB Level 1 instruction cache
  • 64KB Level 1 data cache
  • Up to 1MB Level 2 cache
  • Improved branch prediction for greater accuracy in anticipating instruction calls
  • Enhanced TLB structures for better memory management of complex workloads
CPU: AMD Athlon 3400+ 64-bit Processing