NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon R9 280X
GPU · Specs Compare
Graphics Card
Release Date
Jun 2025
Oct 2013
Generation
Navi IV
Volcanic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1700 MHz
850 MHz
Boost Clock
3130 MHz
1000 MHz
Memory Clock
2518 MHz
1500 MHz
Memory
Memory Size
8GB
3GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
384bit
Bandwidth
322.3GB/s
288.0GB/s
Render Config
SM Count
80
—
Compute Units
32
32
Shading Units
2048
2048
TMUs
128
128
ROPs
64
32
Tensor Cores
320
—
RT Cores
32
—
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
4 MB
768 KB
L3 Cache
32 MB
—
Theoretical Performance
Pixel Rate
200.3 GPixel/s
32.00 GPixel/s
Texture Rate
400.6 GTexel/s
128.0 GTexel/s
FP16 (half)
51.28 TFLOPS
—
FP32 (float)
25.64 TFLOPS
4.096 TFLOPS
FP64 (double)
801.3 GFLOPS
1024 GFLOPS
Graphics Processor
GPU Name
Navi 44
Tahiti
GPU Variant
Navi 44 XT(215-176400102)
Tahiti XTL(215-0821065)
Architecture
RDNA 4.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
4 nm
28 nm
Transistors
29.7 billion
4.313 billion
Die Size
199 mm²
352 mm²
Board Design
TDP
150W
250W
Suggested PSU
450 W
600 W
Outputs
1x HDMI 2.1b2x DisplayPort 2.1a
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 8-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.2
1.2
Vulkan
1.3
1.2
CUDA
8.6
—
Shader Model
6.8
5.1
Benchmark
Blender
5,956
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.