NVIDIA GeForce GTX 780M Mac Edition vs AMD Radeon HD 7870 GHz Edition
GPU Specs Compare
Graphics Card
Release Date
Nov 2013
Mar 2012
Generation
GeForce 700M
Southern Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Base Clock
771 MHz
-
Boost Clock
797 MHz
-
Memory Clock
1250 MHz
1200 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
160.0GB/s
153.6GB/s
Render Config
Shading Units
1536
1280
TMUs
128
80
ROPs
32
32
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
512 KB
512 KB
Compute Units
-
20
Theoretical Performance
Pixel Rate
25.50 GPixel/s
32.00 GPixel/s
Texture Rate
102.0 GTexel/s
80.00 GTexel/s
FP32 (float)
2.448 TFLOPS
2.560 TFLOPS
FP64 (double)
102.0 GFLOPS
160.0 GFLOPS
Graphics Processor
GPU Name
GK104
Pitcairn
GPU Variant
N14E-GTX-A2
Pitcairn XT(215-0828047)
Architecture
Kepler
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
3.54 billion
2.8 billion
Die Size
294 mm²
212 mm²
Board Design
TDP
122W
175W
Outputs
No outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Suggested PSU
-
450 W
Power Connectors
-
2x 6-pin
Graphics Features
DirectX
12 (11_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
1.2
Vulkan
1.1
1.2
CUDA
3.0
-
Shader Model
5.1
5.1