Product Compare

AMD Radeon HD 6870 1600SP Edition vs NVIDIA GeForce RTX 3080 Ti 20 GB

GPU GPU
Graphics Card
Release Date Jan 2013 Jun 2025
Generation Northern Islands Navi IV
Type Desktop Desktop
Bus Interface PCIe 2.0 x16 PCIe 5.0 x16
Clock Speeds
Memory Clock 1050 MHz 2518 MHz
Base Clock 1700 MHz
Boost Clock 3130 MHz
Memory
Memory Size 1024MB 8GB
Memory Type GDDR5 GDDR6
Memory Bus 256bit 128bit
Bandwidth 134.4GB/s 322.3GB/s
Render Config
Compute Units 20 32
Shading Units 1600 2048
TMUs 80 128
ROPs 32 64
L1 Cache 8 KB (per CU) 128 KB (per SM)
L2 Cache 512 KB 4 MB
SM Count 80
Tensor Cores 320
RT Cores 32
L3 Cache 32 MB
Theoretical Performance
Pixel Rate 27.20 GPixel/s 200.3 GPixel/s
Texture Rate 68.00 GTexel/s 400.6 GTexel/s
FP32 (float) 2.720 TFLOPS 25.64 TFLOPS
FP64 (double) 544.0 GFLOPS 801.3 GFLOPS
FP16 (half) 51.28 TFLOPS
Graphics Processor
GPU Name Cypress Navi 44
GPU Variant Cypress XT(215-0735033) Navi 44 XT(215-176400102)
Architecture TeraScale 2 RDNA 4.0
Foundry TSMC TSMC
Process Size 40 nm 4 nm
Transistors 2.154 billion 29.7 billion
Die Size 334 mm² 199 mm²
Board Design
TDP 175W 150W
Suggested PSU 450 W 450 W
Outputs 2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1 1x HDMI 2.1b2x DisplayPort 2.1a
Power Connectors 2x 6-pin 1x 8-pin
Graphics Features
DirectX 11.2 (11_0) 12 Ultimate (12_2)
OpenGL 4.4 4.6
OpenCL 1.2 2.2
Vulkan N/A 1.3
Shader Model 5.0 6.8
CUDA 8.6