AMD Radeon HD 8990 OEM vs NVIDIA GeForce RTX 4090 D
GPU Specs Compare
Graphics Card
Release Date
Apr 2013
Dec 2023
Generation
Sea Islands
GeForce 40
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
950 MHz
2280 MHz
Boost Clock
1000 MHz
2520 MHz
Memory Clock
1500 MHz
1313 MHz
Memory
Memory Size
3GB
24GB
Memory Type
GDDR5
GDDR6X
Memory Bus
384bit
384bit
Bandwidth
288.0GB/s
1008GB/s
Render Config
Compute Units
32
-
Shading Units
2048
14592
TMUs
128
456
ROPs
32
176
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
768 KB
72 MB
SM Count
-
114
Tensor Cores
-
456
RT Cores
-
114
Theoretical Performance
Pixel Rate
32.00 GPixel/s
443.5 GPixel/s
Texture Rate
128.0 GTexel/s
1149 GTexel/s
FP32 (float)
4.096 TFLOPS
73.54 TFLOPS
FP64 (double)
1024 GFLOPS
1149 GFLOPS
FP16 (half)
-
73.54 TFLOPS
Graphics Processor
GPU Name
Malta
AD102
GPU Variant
Malta XT(215-0849026)
AD102-250-A1
Architecture
GCN 1.0
Ada Lovelace
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
4.313 billion
76.3 billion
Die Size
365 mm²
609 mm²
Board Design
TDP
375W
425W
Suggested PSU
750 W
800 W
Outputs
1x DVI4x mini-DisplayPort 1.2
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
2x 8-pin
1x 16-pin
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
-
8.9