NVIDIA GeForce RTX 4080 16 GB vs AMD Radeon HD 6870 X2
GPU Specs Compare
Graphics Card
Release Date
Sep 2022
Jul 2011
Generation
GeForce 40
Northern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
2205 MHz
-
Boost Clock
2505 MHz
-
Memory Clock
1400 MHz
1050 MHz
Memory
Memory Size
16GB
1024MB
Memory Type
GDDR6X
GDDR5
Memory Bus
256bit
256bit
Bandwidth
716.8GB/s
134.4GB/s
Render Config
SM Count
76
-
Shading Units
9728
1120
TMUs
304
56
ROPs
112
32
Tensor Cores
304
-
RT Cores
76
-
L1 Cache
128 KB (per SM)
8 KB (per CU)
L2 Cache
64 MB
512 KB
Compute Units
-
14
Theoretical Performance
Pixel Rate
280.6 GPixel/s
28.80 GPixel/s
Texture Rate
761.5 GTexel/s
50.40 GTexel/s
FP16 (half)
48.74 TFLOPS
-
FP32 (float)
48.74 TFLOPS
2.016 TFLOPS
FP64 (double)
761.5 GFLOPS
-
Graphics Processor
GPU Name
AD103
Barts
GPU Variant
AD103-300-A1
Barts XT(215-0798000)
Architecture
Ada Lovelace
TeraScale 2
Foundry
TSMC
TSMC
Process Size
4 nm
40 nm
Transistors
45.9 billion
1.7 billion
Die Size
379 mm²
255 mm²
Board Design
TDP
320W
300W
Suggested PSU
700 W
700 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Power Connectors
1x 16-pin
-
Graphics Features
DirectX
12 Ultimate (12_2)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
3.0
1.2
Vulkan
1.3
N/A
CUDA
8.9
-
Shader Model
6.6
5.0