NVIDIA RTX A4000 Mobile vs AMD Radeon HD 6850 X2
GPU · Specs Compare
Graphics Card
Release Date
Apr 2021
Sep 2011
Generation
Ampere-MW
Northern Islands
Type
Professional
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
1140 MHz
—
Boost Clock
1680 MHz
—
Memory Clock
1500 MHz
1050 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
256bit
Bandwidth
384.0GB/s
134.4GB/s
Render Config
SM Count
40
—
Shading Units
5120
960
TMUs
160
48
ROPs
80
32
Tensor Cores
160
—
RT Cores
40
—
L1 Cache
128 KB (per SM)
8 KB (per CU)
L2 Cache
4 MB
512 KB
Compute Units
—
12
Theoretical Performance
Pixel Rate
134.4 GPixel/s
25.60 GPixel/s
Texture Rate
268.8 GTexel/s
38.40 GTexel/s
FP16 (half)
17.20 TFLOPS
—
FP32 (float)
17.20 TFLOPS
1.536 TFLOPS
FP64 (double)
268.8 GFLOPS
—
Graphics Processor
GPU Name
GA104
Barts
Architecture
Ampere
TeraScale 2
Foundry
Samsung
TSMC
Process Size
8 nm
40 nm
Transistors
17.4 billion
1.7 billion
Die Size
392 mm²
255 mm²
GPU Variant
—
Barts PRO(215-0798006)
Board Design
TDP
115W
254W
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Power Connectors
None
2x 8-pin
Suggested PSU
—
600 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
6.8
5.0
Benchmark
Blender
2,825
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.