Radeon HD 6950 and Radeon RX 6900 - video card comparison
Passmark - benchmark score Radeon HD 6950 vs Radeon RX 6900
Radeon HD 6950
2693
Radeon RX 6900
27641
Radeon HD 6950
Radeon RX 6900
Architecture
TeraScale 3 (2010−2013)
RDNA 2.0 (2020−2022)
GPU code name
Cayman
Navi 21
Market segment
Desktop
Desktop
Release date
December 2010
October 2020
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 6-pin
2x 8-pin
Boost clock speed
800 MHz
2105 MHz
Floating-point performance
2,252.8 gflops
-
Manufacturing process technology
40 nm
7 nm
Number of transistors
2,640 million
23,000 million
Pipelines / CUDA cores
1408
4608
Power consumption (TDP)
500 Watt
255 Watt
Texture fill rate
70.40
606.2
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
16 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1250 MHz
16 GB/s
Memory bandwidth
-
512.0 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
1x HDMI, 2x DisplayPort, 1x USB Type-C
Eyefinity
1
-
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 11
12 Ultimate (12_2)
Mantle
-
-
OpenCL
1.2
2.0
OpenGL
4.4
4.6
Shader Model
5.0
6.5
Vulkan
-
1.2
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-