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AMD Athlon II M340

The AMD Athlon II Dual-Core Mobile M340 is a entry level Dual Core CPU by AMD for laptops with an integrated dual channel DDR2 memory controller (400MHz). The Caspian called core should be based only partly based on the K10 architecture. Compared to the Turion II CPUs, the Athlon II feature a slower HyperTransport Link (1600 MHz). 

The performance of the Athlon II M340 should be comparable to a 2 Ghz Celeron. The Athlon II series has the advantage of 64 Bit support and hardware Virtualization support. The cheap Intel CPUs are often stripped down and dont feature these functions.

CodenameCaspian
SeriesAMD Athlon II

Series: Athlon II Caspian

AMD Athlon II M300 compare2 GHz2 / 2 cores
AMD Athlon II M320 compare2.1 GHz2 / 2 cores
AMD Athlon II M340 « 2.2 GHz2 / 2 cores
AMD Athlon II M360 compare2.3 GHz2 / 2 cores
Clock Rate2200 MHz
Front Side Bus3200
Level 1 Cache128 KB
Level 2 Cache1 MB
Number of Cores / Threads2 / 2
Power Consumption (TDP = Thermal Design Power)35 Watt
Manufacturing Technology45 nm
SocketSocket S1 (S1g3)
FeaturesMMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualization, DDR2 400MHz Memory Controller
64 Bit64 Bit support
Architecturex86
Announcement Date09/10/2009
Product Link (external)products.amd.com

Benchmarks

- Range of benchmark values
red legend - Average benchmark values
* Smaller numbers mean a higher performance

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  • HP 15.6" HD Laptop | AMD Athlon N3050 Processor| AMD Radeon Graphics| Mouse | Sleeve | Microsoft 365 | 4GB RAM | 128GB SSD |Windows 10 S |
  • HP 14 Inch HD Laptop | AMD Athlon Gold 3150U, Up to 3.3 GHz | 16GB DDR4 RAM, 1.5TB Storage (Includes 1TB Cloud) | AMD Radeon Graphics | Win 11 | 720p HD Webcam | USB Type-C 5Gbps | 1Y Microsoft 365
  • AMD Athlon 3000G 2-Core, 4-Thread Unlocked Desktop Processor with Radeon Graphics
  • AMD Athlon II X2 240 2.8GHz 1MB L2 Processor AMD Athlon 64 2.8GHz Socket AM3 45NM 64-Bit 1MB
  • HP 14 Inch HD Laptop, AMD Athlon Gold CPU (Up to 3.3 GHz), 16GB DDR4 RAM, 2TB Storage (512GB SSD, 512GB External and 1TB Cloud), AMD Radeon Graphics, Windows 11, USB Type-C 5Gbps, 1Y Microsoft 365

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v1.35
log 26. 04:53:53

#0 ran 0s before starting gpusingle class +0s ... 0s

#1 no ids found in url (should be separated by "_") +0s ... 0s

#2 not redirecting to Ajax server +0s ... 0s

#3 did not recreate cache, as it is less than 5 days old! Created at Wed, 25 Feb 2026 05:27:06 +0100 +0.002s ... 0.002s

#4 composed specs +0.002s ... 0.005s

#5 did output specs +0s ... 0.005s

#6 getting avg benchmarks for device 953 +0.01s ... 0.015s

#7 got single benchmarks 953 +0s ... 0.015s

#8 got avg benchmarks for devices +0s ... 0.015s

#9 min, max, avg, median took s +0s ... 0.015s

#10 return log +0.585s ... 0.6s

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» Mobile CPU Comparison
Comparison of all mobile CPU series

» Mobile Processors - Benchmarklist
Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series Athlon II

» AMD Athlon II N370
   2x 2.5 GHz
» AMD Athlon II N330
   2x 2.3 GHz
» AMD Athlon II P320
   2x 2.1 GHz
» AMD Athlon II P360
   2x 2.3 GHz
» AMD Athlon II P340
   2x 2.2 GHz
» AMD Athlon II M300
   2x 2 GHz
» AMD Athlon II M320
   2x 2.1 GHz
» AMD Athlon II N350
   2x 2.4 GHz
» AMD Athlon II M340
   2x 2.2 GHz
» AMD Athlon II M360
   2x 2.3 GHz

Surrounding CPUs

+ Intel Core 2 Duo SL9400
   2x 1.86 GHz
+ Intel Atom Z3785
   4x 1.49 GHz - 2.41 GHz
+ Intel Pentium J2900
   4x 2.41 GHz - 2.67 GHz
+ Intel Celeron B730
   1x 1.8 GHz
+ Intel Celeron B720
   1x 1.7 GHz
» AMD Athlon II M340
   2x 2.2 GHz
- Intel Atom 330
   2x 1.6 GHz
- Intel Atom N2600
   2x 1.6 GHz
- AMD Athlon X2 QL-65
   2x 2.1 GHz
- Intel Celeron N2830
   2x 2.16 GHz - 2.41 GHz
- AMD C-70
   2x 1 GHz - 1.33 GHz
Klaus Hinum (Update: 2026-01- 8)