Product Compare

AMD Radeon RX 470D vs AMD Radeon HD 6850 X2

GPU GPU
Graphics Card
Release Date Oct 2016 Sep 2011
Generation Arctic Islands Northern Islands
Type Desktop Desktop
Bus Interface PCIe 3.0 x16 PCIe 2.0 x16
Clock Speeds
Base Clock 926 MHz
Boost Clock 1206 MHz
Memory Clock 1650 MHz 1050 MHz
Memory
Memory Size 4GB 2GB
Memory Type GDDR5 GDDR5
Memory Bus 256bit 256bit
Bandwidth 211.2GB/s 134.4GB/s
Render Config
Compute Units 28 12
Shading Units 1792 960
TMUs 112 48
ROPs 32 32
L1 Cache 16 KB (per CU) 8 KB (per CU)
L2 Cache 2 MB 512 KB
Theoretical Performance
Pixel Rate 38.59 GPixel/s 25.60 GPixel/s
Texture Rate 135.1 GTexel/s 38.40 GTexel/s
FP16 (half) 4.322 TFLOPS
FP32 (float) 4.322 TFLOPS 1.536 TFLOPS
FP64 (double) 270.1 GFLOPS
Graphics Processor
GPU Name Ellesmere Barts
GPU Variant Polaris 10 PROD Barts PRO(215-0798006)
Architecture GCN 4.0 TeraScale 2
Foundry GlobalFoundries TSMC
Process Size 14 nm 40 nm
Transistors 5.7 billion 1.7 billion
Die Size 232 mm² 255 mm²
Board Design
TDP 120W 254W
Suggested PSU 300 W 600 W
Outputs 1x HDMI 2.0b3x DisplayPort 1.4a 2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Power Connectors 1x 6-pin 2x 8-pin
Graphics Features
DirectX 12 (12_0) 11.2 (11_0)
OpenGL 4.6 4.4
OpenCL 2.1 1.2
Vulkan 1.2 N/A
Shader Model 6.4 5.0