Radeon HD 6870 and Quadro K4000 - video card comparison
Passmark - benchmark score Radeon HD 6870 vs Quadro K4000
Radeon HD 6870
2285
Quadro K4000
2806
Radeon HD 6870
Quadro K4000
Architecture
Terascale 2 (2009−2015)
Kepler (2012−2018)
GPU code name
RV940 Barts
GK106
Market segment
Desktop
Workstation
Release date
October 2010
March 2013
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
1x 6-pin
Boost clock speed
900 MHz
-
Core clock speed
-
810 MHz
Floating-point performance
2,016.0 gflops
1,244 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,700 million
2,540 million
Pipelines / CUDA cores
1120
768
Power consumption (TDP)
151 Watt
80 Watt
Texture fill rate
50.40
51.84
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
3 GB
Memory bus width
256 Bit
192 Bit
Memory clock speed
1050 MHz
5616 MHz
Memory bandwidth
134.4 GB/s
134.8 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 2x DisplayPort
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
-
+
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-