Product Compare

NVIDIA GeForce GTX TITAN Z vs AMD Radeon HD 8950 OEM

GPU GPU
Graphics Card
Release Date May 2014 Jan 2013
Generation GeForce 700 Sea Islands
Type Desktop Desktop
Bus Interface PCIe 3.0 x16 PCIe 3.0 x16
Clock Speeds
Base Clock 705 MHz 850 MHz
Boost Clock 876 MHz 925 MHz
Memory Clock 1750 MHz 1250 MHz
Memory
Memory Size 6GB 3GB
Memory Type GDDR5 GDDR5
Memory Bus 384bit 384bit
Bandwidth 336.0GB/s 240.0GB/s
Render Config
Shading Units 2880 1792
TMUs 240 112
ROPs 48 32
L1 Cache 16 KB (per SMX) 16 KB (per CU)
L2 Cache 1536 KB 768 KB
Compute Units 28
Theoretical Performance
Pixel Rate 52.56 GPixel/s 29.60 GPixel/s
Texture Rate 210.2 GTexel/s 103.6 GTexel/s
FP32 (float) 5.046 TFLOPS 3.315 TFLOPS
FP64 (double) 1.682 TFLOPS 828.8 GFLOPS
Graphics Processor
GPU Name GK110B Tahiti
GPU Variant GK110-350-B1 Tahiti PRO(215-0821056)
Architecture Kepler GCN 1.0
Foundry TSMC TSMC
Process Size 28 nm 28 nm
Transistors 7.08 billion 4.313 billion
Die Size 561 mm² 352 mm²
Board Design
TDP 375W 200W
Suggested PSU 750 W 550 W
Outputs 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors 2x 8-pin 2x 6-pin
Graphics Features
DirectX 12 (11_1) 12 (11_1)
OpenGL 4.6 4.6
OpenCL 3.0 1.2
Vulkan 1.2.175 1.2
CUDA 3.5
Shader Model 6.5 (5.1) 5.1