NVIDIA GeForce GTX 1080 Ti vs AMD Radeon HD 8870 OEM
GPU · Specs Compare
Graphics Card
Release Date
Mar 2017
Jan 2013
Generation
GeForce 10
Sea Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1481 MHz
—
Boost Clock
1582 MHz
—
Memory Clock
1376 MHz
1200 MHz
Memory
Memory Size
11GB
2GB
Memory Type
GDDR5X
GDDR5
Memory Bus
352bit
256bit
Bandwidth
484.4GB/s
153.6GB/s
Render Config
SM Count
28
—
Shading Units
3584
1280
TMUs
224
80
ROPs
88
32
L1 Cache
48 KB (per SM)
16 KB (per CU)
L2 Cache
0 MB
512 KB
Compute Units
—
20
Theoretical Performance
Pixel Rate
139.2 GPixel/s
32.00 GPixel/s
Texture Rate
354.4 GTexel/s
80.00 GTexel/s
FP16 (half)
177.2 GFLOPS
—
FP32 (float)
11.34 TFLOPS
2.560 TFLOPS
FP64 (double)
354.4 GFLOPS
160.0 GFLOPS
Graphics Processor
GPU Name
GP102
Pitcairn
GPU Variant
GP102-350-K1-A1
Pitcairn XT(215-0828047)
Architecture
Pascal
GCN 1.0
Foundry
TSMC
TSMC
Process Size
16 nm
28 nm
Transistors
11.8 billion
2.8 billion
Die Size
471 mm²
212 mm²
Board Design
TDP
250W
175W
Suggested PSU
600 W
450 W
Outputs
1x HDMI 2.03x DisplayPort 1.4a
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
1x 6-pin + 1x 8-pin
2x 6-pin
Graphics Features
DirectX
12 (12_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
1.2
Vulkan
1.4
1.2
CUDA
6.1
—
Shader Model
6.8
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.