AMD Radeon HD 7990 vs AMD Steam Machine GPU
GPU · Specs Compare
Graphics Card
Release Date
Apr 2013
Jan 2026
Generation
Southern Islands
Console GPU
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
—
Clock Speeds
Base Clock
950 MHz
1720 MHz
Boost Clock
1000 MHz
2450 MHz
Memory Clock
1500 MHz
2250 MHz
Memory
Memory Size
3GB
8GB
Memory Type
GDDR5
GDDR6
Memory Bus
384bit
128bit
Bandwidth
288.0GB/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
32.00 GPixel/s
156.8 GPixel/s
Texture Rate
128.0 GTexel/s
274.4 GTexel/s
FP32 (float)
4.096 TFLOPS
17.56 TFLOPS
FP64 (double)
1024 GFLOPS
548.8 GFLOPS
FP16 (half)
—
35.12 TFLOPS
Graphics Processor
GPU Name
Malta
Navi 33
GPU Variant
Malta XT(215-0849026)
—
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
365 mm²
204 mm²
Board Design
TDP
375W
110W
Suggested PSU
750 W
—
Outputs
1x DVI4x mini-DisplayPort 1.2
No outputs
Power Connectors
2x 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
▲ Specs Compare
Data sourced from official specifications and benchmark tests.