AMD Radeon HD 8970 OEM vs AMD Radeon R9 M270X
GPU Specs Compare
Graphics Card
Release Date
Jan 2013
Feb 2015
Generation
Sea Islands
Gem System
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1375 MHz
1375 MHz
Base Clock
-
900 MHz
Boost Clock
-
1000 MHz
Memory
Memory Size
3GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
128bit
Bandwidth
264.0GB/s
88.00GB/s
Render Config
Compute Units
32
12
Shading Units
2048
768
TMUs
128
48
ROPs
32
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
256 KB
Theoretical Performance
Pixel Rate
29.60 GPixel/s
16.00 GPixel/s
Texture Rate
118.4 GTexel/s
48.00 GTexel/s
FP32 (float)
3.789 TFLOPS
1.536 TFLOPS
FP64 (double)
947.2 GFLOPS
96.00 GFLOPS
Graphics Processor
GPU Name
Tahiti
Saturn
GPU Variant
Tahiti XT(215-0821060)
Saturn PRO(216-0843044)
Architecture
GCN 1.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
4.313 billion
2.08 billion
Die Size
352 mm²
160 mm²
Board Design
TDP
250W
Unknown
Suggested PSU
600 W
-
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Portable Device Dependent
Power Connectors
1x 6-pin + 1x 8-pin
-
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.2.170
Shader Model
5.1
6.5