AMD Radeon R7 250 vs AMD Radeon R9 285 Full Specs
384 Shaders 1.05GHz | 1,792 Shaders 918MHz |
1GB GDDR573.6GB/s | 2GB GDDR5176GB/s |
·· 806.4 GFLOPS | ·· 3.29 TFLOPS |
Form Factor PCIe Card | Form Factor PCIe Card |
TDP 75W | TDP 190W |
Power Connectors - | Power Connectors 2x 6-Pin |
Radeon R7 250806.4 GFLOPSFP32
Radeon R9 2853.29 TFLOPSFP32Clock Speed ··· | Clock Speed ·· |
Peak OPS 806.4 GFLOPSFP32 | Peak OPS 3.29 TFLOPSFP32 |
FP32 806.4 GFLOPS | FP32 3.29 TFLOPS |
FP64 50.4 GFLOPS | FP64 205.6 GFLOPS |
Pixel Rate 8.4 GPixel/s | Pixel Rate 29.4 GPixel/s |
Texture Rate 25.2 GTexel/s | Texture Rate 102.8 GTexel/s |
Shaders 384 Shaders | Shaders 1,792 Shaders |
TMUs 24 TMUs | TMUs 112 TMUs |
ROPs 8 ROPs | ROPs 32 ROPs |
CUs 6 CUs | CUs 28 CUs |
Base Clock 1GHz | Base Clock - |
Boost Clock 1.05GHz | Boost Clock 918MHz |
L2 Cache 256KB shared | L2 Cache 768KB shared |
1GB GDDR5 | 2GB GDDR5 |
Memory Bus 128-bit | Memory Bus 256-bit |
Memory Speed 4.6GT/s | Memory Speed 5.5GT/s |
Memory Bandwidth 73.6GB/s | Memory Bandwidth 176GB/s |
TDP 75W | TDP 190W |
Multi-Monitor 3 | Multi-Monitor 3 |
HDCP - | HDCP HDCP 1.4 |
- | 1x DisplayPort 1.2 |
1x HDMI 1.4 | 1x HDMI 1.4 |
- | 2x DVI-D Dual-Link |
1x DVI-I Dual-Link | - |
1x VGA | - |
Encoder Model VCE 1.0 | Encoder Model VCE 3.0 |
Decoder Model UVD 4.0 | Decoder Model UVD 5.0 |
Form Factor PCIe Card | Form Factor PCIe Card |
PCIe 1-Slots | PCIe 2-Slots |
- | Height 110 mm (4.33")Width 221 mm (8.7")Depth 36 mm (1.42") |
Cooling Open-Air 1x Fan | Cooling Blower 1x Fan |
Power Connectors - | Power Connectors 2x 6-Pin |
Manufacturer | Manufacturer |
Chip Designer | Chip Designer |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename Oland | Codename Tonga |
Chip Variant Oland XT | Chip Variant Tonga Pro |
Market Segment Desktop | Market Segment Desktop |
Release Date Aug 8, 2013 | Release Date Sep 2, 2014 |
Foundry TSMC | Foundry TSMC |
Fabrication Node 28nm | Fabrication Node 28nm |
Die Size 77mm² | Die Size 359mm² |
Transistor Count 950 Million | Transistor Count 5 Billion |
Transistor Density 12.34 MTr/mm² | Transistor Density 13.93 MTr/mm² |
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