|
iaaf 发表于 2011-3-13 17:54 ![]()
和HD5550 一个级别
5550与6450对比(红为5550,蓝为6450):
TeraScale 2 Unified Processing Architecture
320 Stream Processing Units
160 Stream Processing Units
16 Texture Units
8 Texture Units
32 Z/Stencil ROP Units
16 Z/Stencil ROP Units
8 Color ROP Units
4 Color ROP Units
Engine clock speed: 550 MHz
Engine clock speed: 625-750 MHz
Processing power (single precision): 352 GFLOPS
Processing power (single precision): 200-240 GFLOPS
Memory clock speed:
DDR3: 800-900 MHz
GDDR5: 900-1000 MHz
DDR3: 533-800 MHz
GDDR5: 800-900 MHz
Memory data rate:
DDR3: 1.6 – 1.8 Gbps
GDDR5: 3.6 – 4.0 Gbps
DDR3: 1.066 – 1.6 Gbps
GDDR5: 3.2 – 3.6 Gbps
Memory bandwidth:
DDR3: 24.5 – 28.8 GB/s
GDDR5: 57.6 – 64 GB/s
DDR3: 8.5 – 12.8 GB/s
GDDR5: 25.6 – 28.8 GB/s |
|