AMD Radeon HD 8870 OEM vs NVIDIA GeForce GTX 780 Ti 6 GB
GPU · Specs Compare
Graphics Card
Release Date
Jan 2013
Unknown
Generation
Sea Islands
GeForce 700
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1200 MHz
1753 MHz
Base Clock
—
875 MHz
Boost Clock
—
928 MHz
Memory
Memory Size
2GB
6GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
153.6GB/s
336.6GB/s
Render Config
Compute Units
20
—
Shading Units
1280
2880
TMUs
80
240
ROPs
32
48
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
1536 KB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
55.68 GPixel/s
Texture Rate
80.00 GTexel/s
222.7 GTexel/s
FP32 (float)
2.560 TFLOPS
5.345 TFLOPS
FP64 (double)
160.0 GFLOPS
222.7 GFLOPS
Graphics Processor
GPU Name
Pitcairn
GK110B
GPU Variant
Pitcairn XT(215-0828047)
—
Architecture
GCN 1.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
7.08 billion
Die Size
212 mm²
561 mm²
Board Design
TDP
175W
250W
Suggested PSU
450 W
600 W
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.1
Shader Model
5.1
5.1
CUDA
—
3.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.