Product Compare

AMD Radeon HD 7850 vs NVIDIA RTX PRO 4000 Blackwell SFF

GPU GPU
Graphics Card
Release Date Mar 2012 Aug 2025
Generation Southern Islands Blackwell PRO W
Type Desktop Desktop
Bus Interface PCIe 3.0 x16 PCIe 5.0 x8
Clock Speeds
Memory Clock 1200 MHz 1125 MHz
Base Clock 577 MHz
Boost Clock 1432 MHz
Memory
Memory Size 2GB 24GB
Memory Type GDDR5 GDDR7
Memory Bus 256bit 192bit
Bandwidth 153.6GB/s 432.0GB/s
Render Config
Compute Units 16
Shading Units 1024 8960
TMUs 64 280
ROPs 32 96
L1 Cache 16 KB (per CU) 128 KB (per SM)
L2 Cache 512 KB 48 MB
SM Count 70
Tensor Cores 280
RT Cores 70
Theoretical Performance
Pixel Rate 27.52 GPixel/s 137.5 GPixel/s
Texture Rate 55.04 GTexel/s 401.0 GTexel/s
FP32 (float) 1.761 TFLOPS 25.66 TFLOPS
FP64 (double) 110.1 GFLOPS 401.0 GFLOPS
FP16 (half) 25.66 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 130W 70W
Suggested PSU 300 W 250 W
Outputs 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 4x mini-DisplayPort 2.1b
Power Connectors 1x 6-pin None
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 6.8
CUDA 12.0