AMD Radeon HD 7990 vs NVIDIA RTX A4 Mobile
GPU Specs Compare
Graphics Card
Release Date
Apr 2013
Apr 2021
Generation
Southern Islands
Quadro Ampere-M
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
950 MHz
1297 MHz
Boost Clock
1000 MHz
1770 MHz
Memory Clock
1500 MHz
1750 MHz
Memory
Memory Size
3GB
4GB
Memory Type
GDDR5
GDDR6
Memory Bus
384bit
128bit
Bandwidth
288.0GB/s
224.0GB/s
Render Config
Compute Units
32
-
Shading Units
2048
2048
TMUs
128
64
ROPs
32
32
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
768 KB
2 MB
SM Count
-
16
Tensor Cores
-
64
RT Cores
-
16
Theoretical Performance
Pixel Rate
32.00 GPixel/s
56.64 GPixel/s
Texture Rate
128.0 GTexel/s
113.3 GTexel/s
FP32 (float)
4.096 TFLOPS
7.250 TFLOPS
FP64 (double)
1024 GFLOPS
113.3 GFLOPS
FP16 (half)
-
7.250 TFLOPS
Graphics Processor
GPU Name
Malta
GA107
GPU Variant
Malta XT(215-0849026)
-
Architecture
GCN 1.0
Ampere
Foundry
TSMC
Samsung
Process Size
28 nm
8 nm
Transistors
4.313 billion
8.7 billion
Die Size
365 mm²
200 mm²
Board Design
TDP
375W
Unknown
Suggested PSU
750 W
-
Outputs
1x DVI4x mini-DisplayPort 1.2
Portable Device Dependent
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.3
Shader Model
5.1
6.7
CUDA
-
8.6