AMD Radeon HD 8870 OEM vs NVIDIA RTX 4000 SFF Ada Generation
GPU Specs Compare
Graphics Card
Release Date
Jan 2013
Nov 2018
Generation
Sea Islands
Radeon Instinct
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1200 MHz
1000 MHz
Base Clock
-
1200 MHz
Boost Clock
-
1746 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
HBM2
Memory Bus
256bit
4096bit
Bandwidth
153.6GB/s
1.02TB/s
Render Config
Compute Units
20
60
Shading Units
1280
3840
TMUs
80
240
ROPs
32
64
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
4 MB
SM Count
-
48
Tensor Cores
-
192
RT Cores
-
48
Theoretical Performance
Pixel Rate
32.00 GPixel/s
111.7 GPixel/s
Texture Rate
80.00 GTexel/s
419.0 GTexel/s
FP32 (float)
2.560 TFLOPS
13.41 TFLOPS
FP64 (double)
160.0 GFLOPS
6.705 TFLOPS
FP16 (half)
-
26.82 TFLOPS
Graphics Processor
GPU Name
Pitcairn
Vega 20
GPU Variant
Pitcairn XT(215-0828047)
Vega 20 GLXT
Architecture
GCN 1.0
GCN 5.1
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
2.8 billion
13.23 billion
Die Size
212 mm²
331 mm²
Board Design
TDP
175W
300W
Suggested PSU
450 W
700 W
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x mini-DisplayPort 1.4a
Power Connectors
2x 6-pin
2x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.3
Shader Model
5.1
6.7
CUDA
-
8.9