Radeon HD 6950 and Quadro P400 - video card comparison
Passmark - benchmark score Radeon HD 6950 vs Quadro P400
Radeon HD 6950
2693
Quadro P400
1690
Radeon HD 6950
Quadro P400
Architecture
TeraScale 3 (2010−2013)
Pascal (2016−2021)
GPU code name
Cayman
GP107
Market segment
Desktop
Workstation
Release date
December 2010
February 2017
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
None
Boost clock speed
800 MHz
1252 MHz
Core clock speed
-
1228 MHz
Floating-point performance
2,252.8 gflops
679.9 gflops
Manufacturing process technology
40 nm
14 nm
Number of transistors
2,640 million
3,300 million
Pipelines / CUDA cores
1408
256
Power consumption (TDP)
500 Watt
30 Watt
Texture fill rate
70.40
20.03
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
1250 MHz
4008 MHz
Memory bandwidth
-
32.06 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
3x mini-DisplayPort
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
12 (12_1)
CUDA
-
6.1
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
6.4
Vulkan
-
1.2.131
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-