NVIDIA RTX A4000H vs AMD Radeon HD 7990
GPU Specs Compare
Graphics Card
Release Date
Apr 2021
Apr 2013
Generation
Quadro Ampere
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
735 MHz
950 MHz
Boost Clock
1560 MHz
1000 MHz
Memory Clock
1750 MHz
1500 MHz
Memory
Memory Size
16GB
3GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
384bit
Bandwidth
448.0GB/s
288.0GB/s
Render Config
SM Count
48
-
Shading Units
6144
2048
TMUs
192
128
ROPs
96
32
Tensor Cores
192
-
RT Cores
48
-
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
4 MB
768 KB
Compute Units
-
32
Theoretical Performance
Pixel Rate
149.8 GPixel/s
32.00 GPixel/s
Texture Rate
299.5 GTexel/s
128.0 GTexel/s
FP16 (half)
19.17 TFLOPS
-
FP32 (float)
19.17 TFLOPS
4.096 TFLOPS
FP64 (double)
299.5 GFLOPS
1024 GFLOPS
Graphics Processor
GPU Name
GA104
Malta
GPU Variant
GA104-???-A1
Malta XT(215-0849026)
Architecture
Ampere
GCN 1.0
Foundry
Samsung
TSMC
Process Size
8 nm
28 nm
Transistors
17.4 billion
4.313 billion
Die Size
392 mm²
365 mm²
Board Design
TDP
140W
375W
Suggested PSU
300 W
750 W
Outputs
4x DisplayPort 1.4a
1x DVI4x mini-DisplayPort 1.2
Power Connectors
1x 6-pin
2x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
1.2
Vulkan
1.3
1.2
CUDA
8.6
-
Shader Model
6.7
5.1