GeForce GTX 770 and Radeon HD 6870 - video card comparison
Passmark - benchmark score GeForce GTX 770 vs Radeon HD 6870
GeForce GTX 770
6099
Radeon HD 6870
2285
GeForce GTX 770
Radeon HD 6870
Architecture
Kepler (2012−2018)
Terascale 2 (2009−2015)
GPU code name
GK104
RV940 Barts
Market segment
Desktop
Desktop
Release date
May 2013
October 2010
Bus support
PCI Express 3.0
PCIe 2.0 x16
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Minimum recommended system power
600 Watt
-
Supplementary power connectors
One 8-pin and one 6-pin
2x 6-pin
Boost clock speed
1085 MHz
900 MHz
Core clock speed
1046 MHz
-
CUDA cores
1536
-
Floating-point performance
3,333 gflops
2,016.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
1,700 million
Pipelines / CUDA cores
1536
1120
Power consumption (TDP)
230 Watt
151 Watt
Maximum GPU temperature
98 °C
-
Texture fill rate
134 billion/sec
50.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
7012 MHz
1050 MHz
Memory bandwidth
224.3 GB/s
134.4 GB/s
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
2x DVI, 1x HDMI, 2x mini-DisplayPort
Multi monitor support
4 displays
-
Eyefinity
-
1
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
2048x1536
-
DisplayPort support
-
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
DirectX® 11
CUDA
+
-
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.3
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
-
3D Gaming
+
-
3D Vision
+
-
3D Vision Live
+
-
AppAcceleration
-
-
Blu Ray 3D
+
-
CrossFire
-
1
Enduro
-
-
HD3D
-
-
PhysX
+
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-