NVIDIA GeForce RTX 4090 vs AMD Radeon HD 7970 GHz Edition
GPU Specs Compare
Graphics Card
Release Date
Sep 2022
Jun 2012
Generation
GeForce 40
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
2235 MHz
1000 MHz
Boost Clock
2520 MHz
1050 MHz
Memory Clock
1313 MHz
1500 MHz
Memory
Memory Size
24GB
3GB
Memory Type
GDDR6X
GDDR5
Memory Bus
384bit
384bit
Bandwidth
1.01TB/s
288.0GB/s
Render Config
SM Count
128
-
Shading Units
16384
2048
TMUs
512
128
ROPs
176
32
Tensor Cores
512
-
RT Cores
128
-
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
72 MB
768 KB
Compute Units
-
32
Theoretical Performance
Pixel Rate
443.5 GPixel/s
33.60 GPixel/s
Texture Rate
1290.2 GTexel/s
134.4 GTexel/s
FP16 (half)
82.58 TFLOPS
-
FP32 (float)
82.58 TFLOPS
4.301 TFLOPS
FP64 (double)
1290.2 GFLOPS
1075 GFLOPS
Graphics Processor
GPU Name
AD102
Tahiti
GPU Variant
AD102-300-A1
Tahiti XT2(215-0821065)
Architecture
Ada Lovelace
GCN 1.0
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
76.3 billion
4.313 billion
Die Size
609 mm²
352 mm²
Board Design
TDP
450W
300W
Suggested PSU
850 W
700 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
1x 16-pin
1x 6-pin + 1x 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
8.9
-
Shader Model
6.8
5.1