NVIDIA GeForce GTX 775M Mac Edition vs AMD Radeon R9 270 1024SP
GPU Specs Compare
Graphics Card
Release Date
Nov 2013
Mar 2015
Generation
GeForce 700M
Volcanic Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Memory Clock
1250 MHz
1200 MHz
Base Clock
-
900 MHz
Boost Clock
-
925 MHz
Memory
Memory Size
2GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
160.0GB/s
153.6GB/s
Render Config
Shading Units
1344
1024
TMUs
112
64
ROPs
32
32
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
512 KB
512 KB
Compute Units
-
16
Theoretical Performance
Pixel Rate
22.32 GPixel/s
29.60 GPixel/s
Texture Rate
89.26 GTexel/s
59.20 GTexel/s
FP32 (float)
2.142 TFLOPS
1.894 TFLOPS
FP64 (double)
89.26 GFLOPS
118.4 GFLOPS
Graphics Processor
GPU Name
GK104
Pitcairn
GPU Variant
N13E-GTX-A2
Pitcairn PRO(215-0828062)
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
100W
150W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Suggested PSU
-
450 W
Power Connectors
-
1x 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