ATI Radeon HD 4450 vs ATI Radeon HD 4580 Full Specs
80 Shaders 600MHz | 120 Shaders 796MHz |
524MB DDR26.4GB/s | 524MB GDDR322.2GB/s |
·· 96 GFLOPS | ·· 191 GFLOPS |
Form Factor PCIe Card | Form Factor PCIe Card |
TDP 25W | TDP 65W |
Radeon HD 445096 GFLOPSFP32
Radeon HD 4580191 GFLOPSFP32Clock Speed ·· | Clock Speed ·· |
Peak OPS 96 GFLOPSFP32 | Peak OPS 191 GFLOPSFP32 |
FP32 96 GFLOPS | FP32 191 GFLOPS |
Pixel Rate 2.4 GPixel/s | Pixel Rate 3.2 GPixel/s |
Texture Rate 4.8 GTexel/s | Texture Rate 6.4 GTexel/s |
Shaders 80 Shaders | Shaders 120 Shaders |
TMUs 8 TMUs | TMUs 8 TMUs |
ROPs 4 ROPs | ROPs 4 ROPs |
CU 1 CU | CUs 3 CUs |
Boost Clock 600MHz | Boost Clock 796MHz |
L2 Cache 64KB shared | L2 Cache 128KB shared |
524MB DDR2 | 524MB GDDR3 |
Memory Bus 64-bit | Memory Bus 128-bit |
Memory Speed 800MT/s | Memory Speed 1.4GT/s |
Memory Bandwidth 6.4GB/s | Memory Bandwidth 22.2GB/s |
TDP 25W | TDP 65W |
Multi-Monitor 2 | Multi-Monitor 2 |
1x DisplayPort 1.0 | - |
1x HDMI 1.3 | - |
1x DVI-I Dual-Link | 2x DVI-I Dual-Link |
- | 1x S-Video |
Decoder Model UVD 2.2 | Decoder Model UVD 1.0 |
Form Factor PCIe Card | Form Factor PCIe Card |
PCIe 1-Slots | PCIe 1-Slots |
Cooling Passive - | Cooling Blower 1x Fan |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename Luigi | Codename Wario |
Chip Variant RV710 | Chip Variant RV635 Pro |
Market Segment Desktop | Market Segment Desktop |
Release Date Nov 18, 2011 | Release Date Nov 20, 2011 |
Foundry TSMC | Foundry TSMC |
Fabrication Node 55nm | Fabrication Node 55nm |
Die Size 73mm² | Die Size 153mm² |
Transistor Count 242 Million | Transistor Count 378 Million |
Transistor Density 3.32 MTr/mm² | Transistor Density 2.47 MTr/mm² |
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