AMD Radeon HD 6870 vs NVIDIA GeForce RTX 3080 Ti 20 GB
GPU · Specs Compare
Graphics Card
Release Date
Oct 2010
Jun 2025
Generation
Northern Islands
Navi IV
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 5.0 x16
Clock Speeds
Memory Clock
1050 MHz
2518 MHz
Base Clock
—
1700 MHz
Boost Clock
—
3130 MHz
Memory
Memory Size
1024MB
8GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
128bit
Bandwidth
134.4GB/s
322.3GB/s
Render Config
Compute Units
14
32
Shading Units
1120
2048
TMUs
56
128
ROPs
32
64
L1 Cache
8 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
4 MB
SM Count
—
80
Tensor Cores
—
320
RT Cores
—
32
L3 Cache
—
32 MB
Theoretical Performance
Pixel Rate
28.80 GPixel/s
200.3 GPixel/s
Texture Rate
50.40 GTexel/s
400.6 GTexel/s
FP32 (float)
2.016 TFLOPS
25.64 TFLOPS
FP16 (half)
—
51.28 TFLOPS
FP64 (double)
—
801.3 GFLOPS
Graphics Processor
GPU Name
Barts
Navi 44
GPU Variant
Barts XT(215-0798000)
Navi 44 XT(215-176400102)
Architecture
TeraScale 2
RDNA 4.0
Foundry
TSMC
TSMC
Process Size
40 nm
4 nm
Transistors
1.7 billion
29.7 billion
Die Size
255 mm²
199 mm²
Board Design
TDP
151W
150W
Suggested PSU
450 W
450 W
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
1x HDMI 2.1b2x DisplayPort 2.1a
Power Connectors
2x 6-pin
1x 8-pin
Graphics Features
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenGL
4.4
4.6
OpenCL
1.2
2.2
Vulkan
N/A
1.3
Shader Model
5.0
6.8
CUDA
—
8.6
Benchmark
Blender
—
5,956
▲ Specs Compare
Data sourced from official specifications and benchmark tests.