NVIDIA GeForce RTX 5080 Mobile vs AMD Radeon HD 7990
GPU Specs Compare
Graphics Card
Release Date
Apr 2025
Apr 2013
Generation
GeForce 50 Mobile
Southern Islands
Type
Mobile
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
975 MHz
950 MHz
Boost Clock
1500 MHz
1000 MHz
Memory Clock
1750 MHz
1500 MHz
Memory
Memory Size
16GB
3GB
Memory Type
GDDR7
GDDR5
Memory Bus
256bit
384bit
Bandwidth
896.0GB/s
288.0GB/s
Render Config
SM Count
60
-
Shading Units
7680
2048
TMUs
240
128
ROPs
96
32
Tensor Cores
240
-
RT Cores
60
-
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
64 MB
768 KB
Compute Units
-
32
Theoretical Performance
Pixel Rate
144.0 GPixel/s
32.00 GPixel/s
Texture Rate
360.0 GTexel/s
128.0 GTexel/s
FP16 (half)
23.04 TFLOPS
-
FP32 (float)
23.04 TFLOPS
4.096 TFLOPS
FP64 (double)
360.0 GFLOPS
1024 GFLOPS
Graphics Processor
GPU Name
GB203
Malta
Architecture
Blackwell 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
45.6 billion
4.313 billion
Die Size
378 mm²
365 mm²
GPU Variant
-
Malta XT(215-0849026)
Board Design
TDP
80W
375W
Suggested PSU
550 W
750 W
Outputs
Portable Device Dependent
1x DVI4x mini-DisplayPort 1.2
Power Connectors
None
2x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
1.2
Vulkan
1.4
1.2
CUDA
12.0
-
Shader Model
6.8
5.1