AMD Radeon HD 7990 vs NVIDIA GB10
GPU Specs Compare
Graphics Card
Release Date
Apr 2013
Oct 2025
Generation
Southern Islands
Server Blackwell
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
950 MHz
1665 MHz
Boost Clock
1000 MHz
2418 MHz
Memory Clock
1500 MHz
1067 MHz
Memory
Memory Size
3GB
128GB
Memory Type
GDDR5
LPDDR5X
Memory Bus
384bit
256bit
Bandwidth
288.0GB/s
273.2GB/s
Render Config
Compute Units
32
-
Shading Units
2048
6144
TMUs
128
384
ROPs
32
48
L1 Cache
16 KB (per CU)
256 KB (per SM)
L2 Cache
768 KB
50 MB
SM Count
-
48
Tensor Cores
-
384
RT Cores
-
48
Theoretical Performance
Pixel Rate
32.00 GPixel/s
116.1 GPixel/s
Texture Rate
128.0 GTexel/s
928.5 GTexel/s
FP32 (float)
4.096 TFLOPS
29.71 TFLOPS
FP64 (double)
1024 GFLOPS
464.3 GFLOPS
FP16 (half)
-
29.71 TFLOPS
Graphics Processor
GPU Name
Malta
GB20B
GPU Variant
Malta XT(215-0849026)
-
Architecture
GCN 1.0
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
3 nm
Transistors
4.313 billion
Unknown
Die Size
365 mm²
Unknown
Board Design
TDP
375W
140W
Suggested PSU
750 W
300 W
Outputs
1x DVI4x mini-DisplayPort 1.2
1x HDMI
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
12 (11_1)
N/A
OpenGL
4.6
N/A
OpenCL
1.2
3.0
Vulkan
1.2
N/A
Shader Model
5.1
N/A
CUDA
-
12.1