AMD Radeon R9 270 1024SP vs NVIDIA RTX PRO 4500 Blackwell Workstation
GPU · Specs Compare
Graphics Card
Release Date
Mar 2015
Mar 2025
Generation
Volcanic Islands
Blackwell PRO W
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
900 MHz
1635 MHz
Boost Clock
925 MHz
2407 MHz
Memory Clock
1200 MHz
1750 MHz
Memory
Memory Size
2GB
32GB
Memory Type
GDDR5
GDDR7
Memory Bus
256bit
256bit
Bandwidth
153.6GB/s
896.0GB/s
Render Config
Compute Units
16
—
Shading Units
1024
10496
TMUs
64
328
ROPs
32
112
L1 Cache
16 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
29.60 GPixel/s
269.6 GPixel/s
Texture Rate
59.20 GTexel/s
789.5 GTexel/s
FP32 (float)
1.894 TFLOPS
50.53 TFLOPS
FP64 (double)
118.4 GFLOPS
789.5 GFLOPS
FP16 (half)
—
50.53 TFLOPS
Graphics Processor
GPU Name
Pitcairn
GB203
GPU Variant
Pitcairn PRO(215-0828062)
—
Architecture
GCN 1.0
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
2.8 billion
45.6 billion
Die Size
212 mm²
378 mm²
Board Design
TDP
150W
200W
Suggested PSU
450 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
4x DisplayPort 2.1b
Power Connectors
1x 6-pin
1x 16-pin
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.4
Shader Model
5.1
6.9
CUDA
—
12.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.