NVIDIA GeForce RTX 3080 vs AMD Radeon R9 390X
GPU · Specs Compare
Graphics Card
Release Date
Sep 2020
Jun 2015
Generation
GeForce 30
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1440 MHz
—
Boost Clock
1710 MHz
—
Memory Clock
1188 MHz
1500 MHz
Memory
Memory Size
10GB
8GB
Memory Type
GDDR6X
GDDR5
Memory Bus
320bit
512bit
Bandwidth
760.3GB/s
384.0GB/s
Render Config
SM Count
68
—
Shading Units
8704
2816
TMUs
272
176
ROPs
96
64
Tensor Cores
272
—
RT Cores
68
—
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
5 MB
1024 KB
Compute Units
—
44
Theoretical Performance
Pixel Rate
164.2 GPixel/s
67.20 GPixel/s
Texture Rate
465.1 GTexel/s
184.8 GTexel/s
FP16 (half)
29.77 TFLOPS
—
FP32 (float)
29.77 TFLOPS
5.914 TFLOPS
FP64 (double)
465.1 GFLOPS
739.2 GFLOPS
Graphics Processor
GPU Name
GA102
Grenada
GPU Variant
GA102-200-KD-A1
Grenada XT(215-0880004)
Architecture
Ampere
GCN 2.0
Foundry
Samsung
TSMC
Process Size
8 nm
28 nm
Transistors
28.3 billion
6.2 billion
Die Size
628 mm²
438 mm²
Board Design
TDP
320W
275W
Suggested PSU
700 W
600 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 12-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.0
Vulkan
1.3
1.2
CUDA
8.6
—
Shader Model
6.6
6.3
Benchmark
3DMark Time Spy
17,662
—
3DMark Time Spy Extreme
8,879
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.