AMD Radeon HD 7660D vs AMD Radeon HD 7870 GHz Full Specs
384 Shaders 800MHz | 1,280 Shaders 1GHz |
Shared Memory29.9GB/sDDR3 | 2GB GDDR5153.6GB/s placeholder |
·· 614.4 GFLOPS | ·· 2.56 TFLOPS |
Form Factor iGPU | Form Factor PCIe Card |
TDP Shared | TDP 175W |
Power Connectors - | Power Connectors 2x 6-Pin |
Radeon HD 7660D614.4 GFLOPSFP32
Radeon HD 7870 GHz2.56 TFLOPSFP32Clock Speed ··· | Clock Speed ·· |
Peak OPS 614.4 GFLOPSFP32 | Peak OPS 2.56 TFLOPSFP32 |
FP32 614.4 GFLOPS | FP32 2.56 TFLOPS |
- | FP64 160 GFLOPS |
Pixel Rate 6.4 GPixel/s | Pixel Rate 32 GPixel/s |
Texture Rate 19.2 GTexel/s | Texture Rate 80 GTexel/s |
Shaders 384 Shaders | Shaders 1,280 Shaders |
TMUs 24 TMUs | TMUs 80 TMUs |
ROPs 8 ROPs | ROPs 32 ROPs |
CUs 6 CUs | CUs 20 CUs |
Base Clock 760MHz | Base Clock - |
Boost Clock 800MHz | Boost Clock 1GHz |
L2 Cache 256KB shared | L2 Cache 512KB shared |
Shared MemoryDDR3 | 2GB GDDR5 placeholder |
Memory Bus 128-bit | Memory Bus 256-bit |
Memory Speed 1.9GT/s | Memory Speed 4.8GT/s |
Memory Bandwidth 29.9GB/s | Memory Bandwidth 153.6GB/s |
ECC No | ECC No |
TDP Shared | TDP 175W |
Multi-Monitor 2 | Multi-Monitor 3 |
- | 2x Mini DisplayPort 1.2 |
- | 1x HDMI 1.4 |
- | 1x DVI-I Dual-Link |
- | Encoder Model VCE 1.0 |
Decoder Model UVD 3.1 | Decoder Model UVD 4.0 |
Form Factor iGPU | Form Factor PCIe Card |
PCIe - | PCIe 2-Slots |
- | Height 111 mm (4.37")Width 241 mm (9.49")Depth 37 mm (1.46") |
Cooling Passive - | Cooling Blower 1x Fan |
Power Connectors - | Power Connectors 2x 6-Pin |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename Devastator | Codename Pitcairn |
Chip Variant - | Chip Variant Pitcairn Pro |
Market Segment Desktop | Market Segment Desktop |
Release Date Jun 1, 2012 | Release Date Mar 5, 2012 |
Foundry GlobalFoundries | Foundry TSMC |
Fabrication Node 32nm | Fabrication Node 28nm |
Die Size 246mm² | Die Size 212mm² |
Transistor Count 1.3 Billion | Transistor Count 2.8 Billion |
Transistor Density 5 MTr/mm² | Transistor Density 13.21 MTr/mm² |
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