NVIDIA RTX A4 Mobile vs AMD Radeon HD 6870
GPU Specs Compare
Graphics Card
Release Date
Apr 2021
Oct 2010
Generation
Quadro Ampere-M
Northern Islands
Type
Professional
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 2.0 x16
Clock Speeds
Base Clock
1297 MHz
-
Boost Clock
1770 MHz
-
Memory Clock
1750 MHz
1050 MHz
Memory
Memory Size
4GB
1024MB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
256bit
Bandwidth
224.0GB/s
134.4GB/s
Render Config
SM Count
16
-
Shading Units
2048
1120
TMUs
64
56
ROPs
32
32
Tensor Cores
64
-
RT Cores
16
-
L1 Cache
128 KB (per SM)
8 KB (per CU)
L2 Cache
2 MB
512 KB
Compute Units
-
14
Theoretical Performance
Pixel Rate
56.64 GPixel/s
28.80 GPixel/s
Texture Rate
113.3 GTexel/s
50.40 GTexel/s
FP16 (half)
7.250 TFLOPS
-
FP32 (float)
7.250 TFLOPS
2.016 TFLOPS
FP64 (double)
113.3 GFLOPS
-
Graphics Processor
GPU Name
GA107
Barts
Architecture
Ampere
TeraScale 2
Foundry
Samsung
TSMC
Process Size
8 nm
40 nm
Transistors
8.7 billion
1.7 billion
Die Size
200 mm²
255 mm²
GPU Variant
-
Barts XT(215-0798000)
Board Design
TDP
Unknown
151W
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Power Connectors
None
2x 6-pin
Suggested PSU
-
450 W
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
8.6
-
Shader Model
6.7
5.0