CPU Comparison
AMD
AMD Athlon 1266
CORE STATE
Thunderbird C
CORE SPECS
1 Cores / 1 Threads
CLOCK SPEED
1266 Base
CACHE
—
MAX TDP
66W
ARCHITECTURE
K7
PROCESS
180 nm
LAUNCH DATE
2001
VS
INTEL
Core i5-540M
CORE STATE
Arrandale
CORE SPECS
2 Cores / 4 Threads
CLOCK SPEED
2.53 Base / 3.07 GHz Turbo
CACHE
3 MB (shared)
MAX TDP
35W
ARCHITECTURE
Westmere
PROCESS
32 nm
LAUNCH DATE
2010
PERFORMANCE BENCHMARKS
cinebench_cinebench_r15_multicore
cinebench_cinebench_r20_multicore
cinebench_cinebench_r20_singlecore
cinebench_cinebench_r23_multicore
cinebench_cinebench_r23_singlecore
geekbench_multicore
geekbench_singlecore
DETAILED SPECIFICATIONS
SPECIFICATION
Athlon 1266
i5-540M
Core Specs
Cores
1
2
+100.0%
Threads
1
4
+300.0%
Base Clock (GHz)
1,266
2.53
-99.8%
Boost Clock (GHz)
—
3.07
Frequency (GHz)
1,266
2.53
-99.8%
Turbo Clock (GHz)
—
3.07
Multiplier
9.5
19
+100.0%
SMP CPUs
1
1
0.0%
Cache
L1 Cache
128 KB
64 KB (per core)
L2 Cache
256 KB
256 KB (per core)
L3 Cache
—
3 MB (shared)
Power
TDP (W)
66
35
-47.0%
Architecture
Architecture
K7
Westmere
Codename
Thunderbird C
Arrandale
Generation
Athlon Model 4
(Thunderbird C)
Core i5
(Arrandale)
Process Size
180 nm
32 nm
Transistors
37 million
382 million
Die Size
120 mm²
81 mm²
Foundry
—
Intel
Memory
Memory Support
DDR1
Depends on motherboard
DDR3
Memory Bus
Single-channel
—
Memory Bandwidth
2128 MB/s
—
ECC Memory
No
No
Platform
Socket
AMD Socket A
Intel Socket G1
Chipsets
AMD 760, VIA KT133, KT266, KT333, KT400, KT600, KT880, SiS 730 Series, 740 Series, NVIDIA nForce, nForce2, ALi MAGiK 1, MAGiK 2
—
PCIe
—
Gen 2
Graphics
Integrated Graphics
On certain motherboards (Chipset feature)
On certain motherboards (Chipset feature)
Other
Market
Desktop
Mobile
Production Status
End-of-life
End-of-life
Part Number
A1266AMS3C
—
Package
CPGA
rPGA