AMD Radeon HD 7870 GHz vs AMD Radeon HD 7870 XT Full Specs
1,280 Shaders 1GHz | 1,536 Shaders 975MHz |
2GB GDDR5153.6GB/s | 2GB GDDR5192GB/s |
·· 2.56 TFLOPS | ·· 3 TFLOPS |
Form Factor PCIe Card | Form Factor PCIe Card |
TDP 175W | TDP 185W |
Power Connectors 2x 6-Pin | Power Connectors 2x 6-Pin |
Radeon HD 7870 GHz2.56 TFLOPSFP32
Radeon HD 7870 XT3 TFLOPSFP32Clock Speed ·· | Clock Speed ··· |
Peak OPS 2.56 TFLOPSFP32 | Peak OPS 3 TFLOPSFP32 |
FP32 2.56 TFLOPS | FP32 3 TFLOPS |
FP64 160 GFLOPS | FP64 748.8 GFLOPS |
Pixel Rate 32 GPixel/s | Pixel Rate 31.2 GPixel/s |
Texture Rate 80 GTexel/s | Texture Rate 93.6 GTexel/s |
Shaders 1,280 Shaders | Shaders 1,536 Shaders |
TMUs 80 TMUs | TMUs 96 TMUs |
ROPs 32 ROPs | ROPs 32 ROPs |
CUs 20 CUs | CUs 24 CUs |
Base Clock - | Base Clock 925MHz |
Boost Clock 1GHz | Boost Clock 975MHz |
L2 Cache 512KB shared | L2 Cache 768KB shared |
2GB GDDR5 | 2GB GDDR5 |
Memory Bus 256-bit | Memory Bus 256-bit |
Memory Speed 4.8GT/s | Memory Speed 6GT/s |
Memory Bandwidth 153.6GB/s | Memory Bandwidth 192GB/s |
ECC No | ECC No |
TDP 175W | TDP 185W |
Multi-Monitor 3 | Multi-Monitor 3 |
2x Mini 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 4.0 |
Form Factor PCIe Card | Form Factor PCIe Card |
PCIe 2-Slots | PCIe 2-Slots |
Height 111 mm (4.37")Width 241 mm (9.49")Depth 37 mm (1.46") | Height 111 mm (4.37")Width 241 mm (9.49")Depth 37 mm (1.46") |
Cooling Blower 1x Fan | Cooling Blower 1x Fan |
Power Connectors 2x 6-Pin | Power Connectors 2x 6-Pin |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename Pitcairn | Codename Tahiti |
Chip Variant Pitcairn Pro | Chip Variant Tahiti LE |
Market Segment Desktop | Market Segment Desktop |
Release Date Mar 5, 2012 | Release Date Nov 19, 2012 |
Foundry TSMC | Foundry TSMC |
Fabrication Node 28nm | Fabrication Node 28nm |
Die Size 212mm² | Die Size 352mm² |
Transistor Count 2.8 Billion | Transistor Count 4.3 Billion |
Transistor Density 13.21 MTr/mm² | Transistor Density 12.25 MTr/mm² |
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