AMD Radeon HD 8740 vs AMD Radeon HD 8970 Full Specs
512 Shaders 800MHz | 2,048 Shaders 1.05GHz |
1GB GDDR572GB/s | 3GB GDDR5288GB/s |
·· 819.2 GFLOPS | ·· 4.3 TFLOPS |
Form Factor PCIe Card | Form Factor PCIe Card |
TDP 55W | TDP 250W |
Power Connectors - | Power Connectors 1x 8-Pin 1x 6-Pin |
Clock Speed ·· | Clock Speed ··· |
Peak OPS 819.2 GFLOPSFP32 | Peak OPS 4.3 TFLOPSFP32 |
FP32 819.2 GFLOPS | FP32 4.3 TFLOPS |
FP64 51.2 GFLOPS | FP64 1.07 TFLOPS |
Pixel Rate 12.8 GPixel/s | Pixel Rate 33.6 GPixel/s |
Texture Rate 25.6 GTexel/s | Texture Rate 134.4 GTexel/s |
Shaders 512 Shaders | Shaders 2,048 Shaders |
TMUs 32 TMUs | TMUs 128 TMUs |
ROPs 16 ROPs | ROPs 32 ROPs |
CUs 8 CUs | CUs 32 CUs |
Base Clock - | Base Clock 1GHz |
Boost Clock 800MHz | Boost Clock 1.05GHz |
L2 Cache 256KB shared | L2 Cache 768KB shared |
1GB GDDR5 | 3GB GDDR5 |
Memory Bus 128-bit | Memory Bus 384-bit |
Memory Speed 4.5GT/s | Memory Speed 6GT/s |
Memory Bandwidth 72GB/s | Memory Bandwidth 288GB/s |
TDP 55W | TDP 250W |
Multi-Monitor 3 | Multi-Monitor 3 |
1x DisplayPort 1.2 | - |
- | 2x Mini DisplayPort 1.2 |
1x HDMI 1.4 | 1x HDMI 1.4 |
1x DVI-I Dual-Link | 1x DVI-I Dual-Link |
Encoder Model VCE 1.0 | Encoder Model VCE 1.0 |
Decoder Model UVD 4.0 | Decoder Model UVD 3.2 |
Form Factor PCIe Card | Form Factor PCIe Card |
PCIe 1-Slots | PCIe 2-Slots |
- | Height 111 mm (4.37")Width 275 mm (10.83")Depth 38 mm (1.5") |
Cooling Open-Air 1x Fan | Cooling Open-Air 2x Fans |
Power Connectors - | Power Connectors 1x 8-Pin, 1x 6-Pin |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding ![]() | Branding ![]() |
Codename Cape Verde | Codename Tahiti |
Chip Variant Cape Verde LE | Chip Variant Tahiti LE |
Market Segment Desktop | Market Segment Desktop |
Release Date Sep 5, 2013 | Release Date Jan 8, 2013 |
Foundry TSMC | Foundry TSMC |
Fabrication Node 28nm | Fabrication Node 28nm |
Die Size 123mm² | Die Size 352mm² |
Transistor Count 1.5 Billion | Transistor Count 4.3 Billion |
Transistor Density 12.2 MTr/mm² | Transistor Density 12.25 MTr/mm² |
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