GeForce RTX 4080 vs Radeon RX 7990 XTX
We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 4080 and 24GB VRAM Radeon RX 7990 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 4080 's Advantages
3584 additional rendering cores
Lower TDP (320W vs 405W)
Radeon RX 7990 XTX 's Advantages
Boost Clock has increased by 44% (3599MHz vs 2505MHz)
More VRAM (24GB vs 16GB)
Larger VRAM bandwidth (1152GB/s vs 716.8GB/s)
Score
Benchmark
FP32 (float)
GeForce RTX 4080
48740
Radeon RX 7990 XTX
+81%
88450
Graphics Card
Sep 2022
Release Date
Unknown
GeForce 40
Generation
Navi III
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
2205 MHz
Base Clock
2500 MHz
2505 MHz
Boost Clock
3599 MHz
1400 MHz
Memory Clock
3000 MHz
Memory
16GB
Memory Size
24GB
GDDR6X
Memory Type
GDDR6
256bit
Memory Bus
384bit
716.8GB/s
Bandwidth
1152GB/s
Render Config
-
Compute Units
96
76
SM Count
-
9728
Shading Units
6144
304
TMUs
384
112
ROPs
192
304
Tensor Cores
-
76
RT Cores
96
128 KB (per SM)
L1 Cache
256 KB per Array
64 MB
L2 Cache
6 MB
-
L3 Cache
192 MB
Theoretical Performance
280.6 GPixel/s
Pixel Rate
691.0 GPixel/s
761.5 GTexel/s
Texture Rate
1382 GTexel/s
48.74 TFLOPS
FP16 (half)
176.9 TFLOPS
48.74 TFLOPS
FP32 (float)
88.45 TFLOPS
761.5 GFLOPS
FP64 (double)
2.764 TFLOPS
Board Design
320W
TDP
405W
700 W
Suggested PSU
800 W
1x HDMI 2.1
3x DisplayPort 1.4a
Outputs
1x HDMI 2.1a
2x DisplayPort 2.1
1x USB Type-C
1x 16-pin
Power Connectors
3x 8-pin
Graphics Processor
AD103
GPU Name
Navi 31
AD103-300-A1
GPU Variant
Navi 31 XTX+
Ada Lovelace
Architecture
RDNA 3.0
TSMC
Foundry
TSMC
5 nm
Process Size
5 nm
45.9 billion
Transistors
57.7 billion
379 mm²
Die Size
529 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
2.2
1.3
Vulkan
1.3
8.9
CUDA
-
6.7
Shader Model
6.7