Radeon HD 6990 and Radeon RX 460 - video card comparison
Passmark - benchmark score Radeon HD 6990 vs Radeon RX 460
Radeon HD 6990
3103
Radeon RX 460
4226
Radeon HD 6990
Radeon RX 460
Architecture
TeraScale 3 (2010−2013)
Polaris (2016−2019)
GPU code name
Antilles
Polaris 11 / Baffin XT
Market segment
Desktop
Desktop
Release date
March 2011
August 2016
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
2x 8-pin
None
Boost clock speed
-
1200 MHz
Core clock speed
830 MHz
1090 MHz
Floating-point performance
2x 2,549.8 gflops
2,150 gflops
Manufacturing process technology
40 nm
14 nm
Number of transistors
2,640 million
3,000 million
Pipelines / CUDA cores
1536
896
Power consumption (TDP)
375 Watt
75 Watt
Texture fill rate
79.68
67.20
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
5000 MHz
7000 MHz
Memory bandwidth
160.0 GB/s
112.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 4x mini-DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
11.2 (11_0)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.4
4.6
Shader Model
5.0
6.4
Vulkan
N/A
1.2.131
FreeSync
-
+