AMD Steam Machine GPU vs AMD Radeon HD 7990
GPU Specs Compare
Graphics Card
Release Date
Jan 2026
Apr 2013
Generation
Console GPU
Southern Islands
Type
Desktop
Desktop
Bus Interface
-
PCIe 3.0 x16
Clock Speeds
Base Clock
1720 MHz
950 MHz
Boost Clock
2450 MHz
1000 MHz
Memory Clock
2250 MHz
1500 MHz
Memory
Memory Size
8GB
3GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
384bit
Bandwidth
288.0GB/s
288.0GB/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
32.00 GPixel/s
Texture Rate
274.4 GTexel/s
128.0 GTexel/s
FP16 (half)
35.12 TFLOPS
-
FP32 (float)
17.56 TFLOPS
4.096 TFLOPS
FP64 (double)
548.8 GFLOPS
1024 GFLOPS
Graphics Processor
GPU Name
Navi 33
Malta
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
365 mm²
GPU Variant
-
Malta XT(215-0849026)
Board Design
TDP
110W
375W
Outputs
No outputs
1x DVI4x mini-DisplayPort 1.2
Power Connectors
None
2x 8-pin
Suggested PSU
-
750 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.2
1.2
Vulkan
1.4
1.2
Shader Model
6.8
5.1