Cyrix MII-300GP (66 MHz 2.2V)


Specifications

General information
TypeCPU / Microprocessor
Market segmentDesktop
FamilyCyrix MII
CPU part numberMII-300GP (66 MHz 2.2V) is an OEM/tray microprocessor
Frequency (MHz)  ? 233 (rated 300)
Bus speed (MHz)  ? 66
Clock multiplier  ? 3.5
Package296-pin Staggered Ceramic Pin Grid Array with heatspreader
1.952" x 1.952" (4.96 cm x 4.96 cm)
SocketSocket 7
Introduction date14-Apr-98
Price at introduction$180
 
Architecture / Microarchitecture
Data width32 bit
Floating Point UnitIntegrated
Level 1 cache size  ? 256 bytes primary code cache
64 KB unified data/code write-back cache
Physical memory (GB)4
FeaturesMMX technology
Low power features
  • Suspend mode
  • Stop clock mode
  • System Management mode
 
Electrical/Thermal parameters
V core (V)  ? 2.2
Min/Recommended/Max V I/O or secondary (V)3.135 / 3.3 / 3.465
Minimum/Maximum operating temperature (°C)  ? 0 - 70

Pictures (1)

Cyrix MII-300GP (66 MHz 2.2V)

233 MHz (300 MHz rating, 66 MHz bus)
296-pin staggered ceramic PGA
2.2V core voltage
Cyrix MII-300GP (66 MHz 2.2V)

Benchmarks

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Tested processor
CPU ID:0601h
CPU vendor string:CyrixInstead

Integer performance

Part number   Result
AMD K6-2 333MHz AMD-K6-2/333AFR  ? 
107.4%
AMD K6-2 333MHz AMD-K6-2/333AFR-66  ? 
107.3%
Cyrix MII 250MHz MII-366GP (100 MHZ 2.9V)  ? 
107%
AMD K6-2 AMD-K6-2/333AFR (BLACK)  ? 
104.9%
Cyrix MII 233MHz MII-300GP (66 MHZ 2.9V FCPGA)  ? 
102.8%
Cyrix MII 233MHz MII-300GP (66 MHZ 2.2V)  ? 
100%
AMD K6-2 300MHz AMD-K6-2/300AFR  ? 
99.8%
AMD K6-2 AMD-K6-2/300AFR (BLACK)  ? 
99.7%
Cyrix MII MII-300GP (75 MHZ 2.9V) (ES)  ? 
99.2%
AMD K6-2 300MHz AMD-K6-2/300AFR-66  ? 
98.1%
Cyrix MII 225MHz MII-300GP (75 MHZ 2.9V)  ? 
96.4%

Floating Point performance

Part number   Result
Cyrix MII MII-350GP (90 MHZ 2.9V) (ES)  ? 
116%
Cyrix MII MII-333GP (66 MHZ 2.2V)  ? 
114.4%
Cyrix MII 263MHz MII-333GP (75 MHZ 2.9V)  ? 
112.8%
Cyrix MII 250MHz MII-366GP (100 MHZ 2.9V)  ? 
107.5%
Cyrix MII 250MHz MII-333GP (83 MHZ 2.9V FCPGA)  ? 
107%
Cyrix MII 233MHz MII-300GP (66 MHZ 2.2V)  ? 
100%
Cyrix MII 233MHz MII-300GP (66 MHZ 2.9V FCPGA)  ? 
100%
Cyrix MII 225MHz MII-300GP (75 MHZ 2.9V)  ? 
96.8%
Cyrix MII 207MHz MII-266GP (83 MHZ 2.9V)  ? 
88.8%
Cyrix MII 200MHz MII-233GP  ? 
86.1%
IDT Winchip 2 240MHz WINCHIP2-3DE240GA  ? 
72.7%
IDT Winchip 2 WINCHIP2-3DE225GA (3.52V) (SAMPLE)  ? 
68.4%

MMX / SSE / SSE2 performance

Part number   Result
Cyrix MII 250MHz MII-333GP (83 MHZ 2.9V)  ? 
111%
Cyrix MII MII-333GP (83 MHZ 2.9V) (ES)  ? 
111%
Cyrix MII 250MHz MII-333GP (83 MHZ 2.9V FCPGA)  ? 
110.6%
Cyrix MII 250MHz MII-366GP (100 MHZ 2.9V)  ? 
106.8%
Cyrix MII 250MHz MII-350GP (83 MHZ 2.9V)  ? 
106.3%
Cyrix MII 233MHz MII-300GP (66 MHZ 2.9V FCPGA)  ? 
104%
Cyrix MII MII-300GP (75 MHZ 2.9V) (ES)  ? 
100.4%
Cyrix MII 233MHz MII-300GP (66 MHZ 2.2V)  ? 
100%
Cyrix MII 225MHz MII-300GP (75 MHZ 2.9V)  ? 
96.3%
Cyrix MII 207MHz MII-266GP (83 MHZ 2.9V)  ? 
92.6%
Cyrix MII 200MHz MII-233GP  ? 
89.3%

CPU ID

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