AMD Radeon HD 8970 OEM vs AMD Steam Machine GPU
GPU Specs Compare
Graphics Card
Release Date
Jan 2013
Jan 2026
Generation
Sea Islands
Console GPU
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
-
Clock Speeds
Memory Clock
1375 MHz
2250 MHz
Base Clock
-
1720 MHz
Boost Clock
-
2450 MHz
Memory
Memory Size
3GB
8GB
Memory Type
GDDR5
GDDR6
Memory Bus
384bit
128bit
Bandwidth
264.0GB/s
288.0GB/s
Render Config
Compute Units
32
28
Shading Units
2048
1792
TMUs
128
112
ROPs
32
64
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
768 KB
2 MB
RT Cores
-
28
L3 Cache
-
32 MB
Theoretical Performance
Pixel Rate
29.60 GPixel/s
156.8 GPixel/s
Texture Rate
118.4 GTexel/s
274.4 GTexel/s
FP32 (float)
3.789 TFLOPS
17.56 TFLOPS
FP64 (double)
947.2 GFLOPS
548.8 GFLOPS
FP16 (half)
-
35.12 TFLOPS
Graphics Processor
GPU Name
Tahiti
Navi 33
GPU Variant
Tahiti XT(215-0821060)
-
Architecture
GCN 1.0
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
6 nm
Transistors
4.313 billion
13.3 billion
Die Size
352 mm²
204 mm²
Board Design
TDP
250W
110W
Suggested PSU
600 W
-
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
None
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
1.2
2.2
Vulkan
1.2
1.4
Shader Model
5.1
6.8