AMD Radeon HD 6870 X2 vs NVIDIA GeForce RTX 5080 Mobile
GPU · Specs Compare
Graphics Card
Release Date
Jul 2011
Apr 2025
Generation
Northern Islands
GeForce 50 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 2.0 x16
PCIe 5.0 x16
Clock Speeds
Memory Clock
1050 MHz
1750 MHz
Base Clock
—
975 MHz
Boost Clock
—
1500 MHz
Memory
Memory Size
1024MB
16GB
Memory Type
GDDR5
GDDR7
Memory Bus
256bit
256bit
Bandwidth
134.4GB/s
896.0GB/s
Render Config
Compute Units
14
—
Shading Units
1120
7680
TMUs
56
240
ROPs
32
96
L1 Cache
8 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
64 MB
SM Count
—
60
Tensor Cores
—
240
RT Cores
—
60
Theoretical Performance
Pixel Rate
28.80 GPixel/s
144.0 GPixel/s
Texture Rate
50.40 GTexel/s
360.0 GTexel/s
FP32 (float)
2.016 TFLOPS
23.04 TFLOPS
FP16 (half)
—
23.04 TFLOPS
FP64 (double)
—
360.0 GFLOPS
Graphics Processor
GPU Name
Barts
GB203
GPU Variant
Barts XT(215-0798000)
—
Architecture
TeraScale 2
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
40 nm
5 nm
Transistors
1.7 billion
45.6 billion
Die Size
255 mm²
378 mm²
Board Design
TDP
300W
80W
Suggested PSU
700 W
550 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
1.4
Shader Model
5.0
6.8
CUDA
—
12.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.