AMD Radeon Instinct MI8 vs AMD Radeon HD 8970 OEM
GPU · Specs Compare
Graphics Card
Release Date
Dec 2016
Jan 2013
Generation
Radeon Instinct
Sea Islands
Type
Professional
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
500 MHz
1375 MHz
Memory
Memory Size
4GB
3GB
Memory Type
HBM
GDDR5
Memory Bus
4096bit
384bit
Bandwidth
512.0GB/s
264.0GB/s
Render Config
Compute Units
64
32
Shading Units
4096
2048
TMUs
256
128
ROPs
64
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
2 MB
768 KB
Theoretical Performance
Pixel Rate
64.00 GPixel/s
29.60 GPixel/s
Texture Rate
256.0 GTexel/s
118.4 GTexel/s
FP16 (half)
8.192 TFLOPS
—
FP32 (float)
8.192 TFLOPS
3.789 TFLOPS
FP64 (double)
512.0 GFLOPS
947.2 GFLOPS
Graphics Processor
GPU Name
Fiji
Tahiti
GPU Variant
Fiji XT CA(215-0862120)
Tahiti XT(215-0821060)
Architecture
GCN 3.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
8.9 billion
4.313 billion
Die Size
596 mm²
352 mm²
Board Design
TDP
175W
250W
Suggested PSU
450 W
600 W
Outputs
No outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
1x 8-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.2.170
1.2
Shader Model
6.5
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.