AMD Steam Machine GPU vs AMD Radeon HD 7970
GPU · Specs Compare
Graphics Card
Release Date
Jan 2026
Jan 2012
Generation
Console GPU
Southern Islands
Type
Desktop
Desktop
Bus Interface
—
PCIe 3.0 x16
Clock Speeds
Base Clock
1720 MHz
—
Boost Clock
2450 MHz
—
Memory Clock
2250 MHz
1375 MHz
Memory
Memory Size
8GB
3GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
384bit
Bandwidth
288.0GB/s
264.0GB/s
Render Config
Compute Units
28
32
Shading Units
1792
2048
TMUs
112
128
ROPs
64
32
RT Cores
28
—
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
768 KB
L3 Cache
32 MB
—
Theoretical Performance
Pixel Rate
156.8 GPixel/s
29.60 GPixel/s
Texture Rate
274.4 GTexel/s
118.4 GTexel/s
FP16 (half)
35.12 TFLOPS
—
FP32 (float)
17.56 TFLOPS
3.789 TFLOPS
FP64 (double)
548.8 GFLOPS
947.2 GFLOPS
Graphics Processor
GPU Name
Navi 33
Tahiti
Architecture
RDNA 3.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
6 nm
28 nm
Transistors
13.3 billion
4.313 billion
Die Size
204 mm²
352 mm²
GPU Variant
—
Tahiti XT(215-0821060)
Board Design
TDP
110W
250W
Outputs
No outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
None
1x 6-pin + 1x 8-pin
Suggested PSU
—
600 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.2
2.1 (1.2)
Vulkan
1.4
1.2.170
Shader Model
6.8
6.5 (5.1)
Benchmark
3DMark Time Spy
—
2,310
3DMark Time Spy Extreme
—
1,209
▲ Specs Compare
Data sourced from official specifications and benchmark tests.