AMD Radeon HD 6850 X2 vs NVIDIA RTX A4000
GPU Specs Compare
Graphics Card
Release Date
Sep 2011
Apr 2021
Generation
Northern Islands
Quadro Ampere
Type
Desktop
Professional
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1050 MHz
1750 MHz
Base Clock
-
735 MHz
Boost Clock
-
1560 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
134.4GB/s
448.0GB/s
Render Config
Compute Units
12
-
Shading Units
960
6144
TMUs
48
192
ROPs
32
96
L1 Cache
8 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
4 MB
SM Count
-
48
Tensor Cores
-
192
RT Cores
-
48
Theoretical Performance
Pixel Rate
25.60 GPixel/s
149.8 GPixel/s
Texture Rate
38.40 GTexel/s
299.5 GTexel/s
FP32 (float)
1.536 TFLOPS
19.17 TFLOPS
FP16 (half)
-
19.17 TFLOPS
FP64 (double)
-
299.5 GFLOPS
Graphics Processor
GPU Name
Barts
GA104
GPU Variant
Barts PRO(215-0798006)
GA104-875-A1
Architecture
TeraScale 2
Ampere
Foundry
TSMC
Samsung
Process Size
40 nm
8 nm
Transistors
1.7 billion
17.4 billion
Die Size
255 mm²
392 mm²
Board Design
TDP
254W
140W
Suggested PSU
600 W
300 W
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
4x DisplayPort 1.4a
Power Connectors
2x 8-pin
1x 6-pin
Graphics Features
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenGL
4.4
4.6
OpenCL
1.2
3.0
Vulkan
N/A
1.3
Shader Model
5.0
6.7
CUDA
-
8.6
📊 Benchmark
3DMark Time Spy
-
11,079
3DMark Time Spy Extreme
-
5,367
OctaneBench
-
352