Radeon HD 6870 and GeForce GT 750M Mac Edition - video card comparison
Passmark - benchmark score Radeon HD 6870 vs GeForce GT 750M Mac Edition
Radeon HD 6870
2285
GeForce GT 750M Mac Edition
1723
Radeon HD 6870
GeForce GT 750M Mac Edition
Architecture
Terascale 2 (2009−2015)
Kepler (2012−2018)
GPU code name
RV940 Barts
GK107
Market segment
Desktop
Desktop
Release date
October 2010
November 2013
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
-
Boost clock speed
900 MHz
-
Core clock speed
-
926 MHz
Floating-point performance
2,016.0 gflops
711.2 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,700 million
1,270 million
Pipelines / CUDA cores
1120
384
Power consumption (TDP)
151 Watt
50 Watt
Texture fill rate
50.40
29.63
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1050 MHz
5016 MHz
Memory bandwidth
134.4 GB/s
80.26 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
12 (11_0)
CUDA
-
3.0
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
-
1.1.126
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-