AMD Radeon HD 6870 X2 vs NVIDIA GeForce RTX 3080 Mobile 16 GB
GPU Specs Compare
Graphics Card
Release Date
Jul 2011
Jan 2021
Generation
Northern Islands
GeForce 30 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1050 MHz
1750 MHz
Base Clock
-
1110 MHz
Boost Clock
-
1545 MHz
Memory
Memory Size
1024MB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
134.4GB/s
448.0GB/s
Render Config
Compute Units
14
-
Shading Units
1120
6144
TMUs
56
192
ROPs
32
96
L1 Cache
8 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
4 MB
SM Count
-
48
Tensor Cores
-
192
RT Cores
-
48
Theoretical Performance
Pixel Rate
28.80 GPixel/s
148.3 GPixel/s
Texture Rate
50.40 GTexel/s
296.6 GTexel/s
FP32 (float)
2.016 TFLOPS
18.98 TFLOPS
FP16 (half)
-
18.98 TFLOPS
FP64 (double)
-
296.6 GFLOPS
Graphics Processor
GPU Name
Barts
GA104
GPU Variant
Barts XT(215-0798000)
GA104-775-A1
Architecture
TeraScale 2
Ampere
Foundry
TSMC
Samsung
Process Size
40 nm
8 nm
Transistors
1.7 billion
17.4 billion
Die Size
255 mm²
392 mm²
Board Design
TDP
300W
115W
Suggested PSU
700 W
-
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Portable Device Dependent
Power Connectors
-
None
Graphics Features
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenGL
4.4
4.6
OpenCL
1.2
3.0
Vulkan
N/A
1.3
Shader Model
5.0
6.8
CUDA
-
8.6