NVIDIA RTX PRO 4500 Blackwell Server vs AMD Radeon HD 6850 X2
GPU · Specs Compare
Graphics Card
Release Date
Mar 2026
Sep 2011
Generation
Server Blackwell
Northern Islands
Type
Professional
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
1215 MHz
—
Boost Clock
2415 MHz
—
Memory Clock
1563 MHz
1050 MHz
Memory
Memory Size
32GB
2GB
Memory Type
GDDR7
GDDR5
Memory Bus
256bit
256bit
Bandwidth
800.3GB/s
134.4GB/s
Render Config
SM Count
82
—
Shading Units
10496
960
TMUs
328
48
ROPs
112
32
Tensor Cores
328
—
RT Cores
82
—
L1 Cache
128 KB (per SM)
8 KB (per CU)
L2 Cache
64 MB
512 KB
Compute Units
—
12
Theoretical Performance
Pixel Rate
270.5 GPixel/s
25.60 GPixel/s
Texture Rate
792.1 GTexel/s
38.40 GTexel/s
FP16 (half)
50.70 TFLOPS
—
FP32 (float)
50.70 TFLOPS
1.536 TFLOPS
FP64 (double)
792.1 GFLOPS
—
Graphics Processor
GPU Name
GB203
Barts
Architecture
Blackwell 2.0
TeraScale 2
Foundry
TSMC
TSMC
Process Size
5 nm
40 nm
Transistors
45.6 billion
1.7 billion
Die Size
378 mm²
255 mm²
GPU Variant
—
Barts PRO(215-0798006)
Board Design
TDP
165W
254W
Suggested PSU
450 W
600 W
Outputs
No outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Power Connectors
1x 16-pin
2x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
3.0
1.2
Vulkan
1.4
N/A
CUDA
12.0
—
Shader Model
6.9
5.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.