NVIDIA GeForce GTX 780M Mac Edition vs AMD Radeon Sky 900
GPU · Specs Compare
Graphics Card
Release Date
Nov 2013
Mar 2013
Generation
GeForce 700M
Radeon Sky
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Base Clock
771 MHz
825 MHz
Boost Clock
797 MHz
950 MHz
Memory Clock
1250 MHz
1250 MHz
Memory
Memory Size
4GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
160.0GB/s
240.0GB/s
Render Config
Shading Units
1536
1792
TMUs
128
112
ROPs
32
32
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
512 KB
768 KB
Compute Units
—
28
Theoretical Performance
Pixel Rate
25.50 GPixel/s
30.40 GPixel/s
Texture Rate
102.0 GTexel/s
106.4 GTexel/s
FP32 (float)
2.448 TFLOPS
3.405 TFLOPS
FP64 (double)
102.0 GFLOPS
851.2 GFLOPS
Graphics Processor
GPU Name
GK104
Tahiti
GPU Variant
N14E-GTX-A2
Orthrus
Architecture
Kepler
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
3.54 billion
4.313 billion
Die Size
294 mm²
352 mm²
Board Design
TDP
122W
300W
Outputs
No outputs
1x DVI1x mini-DisplayPort 1.2
Suggested PSU
—
700 W
Power Connectors
—
2x 8-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
▲ Specs Compare
Data sourced from official specifications and benchmark tests.