AMD Radeon HD 6850 X2 vs NVIDIA RTX PRO 4500 Blackwell
GPU · Specs Compare
Graphics Card
Release Date
Sep 2011
Mar 2025
Generation
Northern Islands
Blackwell PRO W
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 5.0 x16
Clock Speeds
Memory Clock
1050 MHz
1750 MHz
Base Clock
—
1635 MHz
Boost Clock
—
2407 MHz
Memory
Memory Size
2GB
32GB
Memory Type
GDDR5
GDDR7
Memory Bus
256bit
256bit
Bandwidth
134.4GB/s
896.0GB/s
Render Config
Compute Units
12
—
Shading Units
960
10496
TMUs
48
328
ROPs
32
112
L1 Cache
8 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
64 MB
SM Count
—
82
Tensor Cores
—
328
RT Cores
—
82
Theoretical Performance
Pixel Rate
25.60 GPixel/s
269.6 GPixel/s
Texture Rate
38.40 GTexel/s
789.5 GTexel/s
FP32 (float)
1.536 TFLOPS
50.53 TFLOPS
FP16 (half)
—
50.53 TFLOPS
FP64 (double)
—
789.5 GFLOPS
Graphics Processor
GPU Name
Barts
GB203
GPU Variant
Barts PRO(215-0798006)
—
Architecture
TeraScale 2
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
40 nm
5 nm
Transistors
1.7 billion
45.6 billion
Die Size
255 mm²
378 mm²
Board Design
TDP
254W
200W
Suggested PSU
600 W
550 W
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
4x DisplayPort 2.1b
Power Connectors
2x 8-pin
1x 16-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
1.4
Shader Model
5.0
6.8
CUDA
—
12.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.