Radeon HD 6990 and Radeon RX 7900 XTX - video card comparison
Passmark - benchmark score Radeon HD 6990 vs Radeon RX 7900 XTX
Radeon HD 6990
3103
Radeon RX 7900 XTX
31822
Radeon HD 6990
Radeon RX 7900 XTX
Architecture
TeraScale 3 (2010−2013)
RDNA 3
GPU code name
Antilles
Navi 31 XTX
Market segment
Desktop
Desktop
Release date
March 2011
November 2022
Interface
PCIe 2.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 8-pin
2x 8-pin
Boost clock speed
-
2270 MHz
Core clock speed
830 MHz
-
Floating-point performance
2x 2,549.8 gflops
-
Manufacturing process technology
40 nm
5 nm
Number of transistors
2,640 million
57,700 million
Pipelines / CUDA cores
1536
6144
Power consumption (TDP)
375 Watt
355 Watt
Texture fill rate
79.68
959.6
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
24 GB
Memory bus width
256 Bit
384 Bit
Memory clock speed
5000 MHz
20000 MHz
Memory bandwidth
160.0 GB/s
960.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 4x mini-DisplayPort
1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
HDMI
-
+
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenCL
1.2
2.1
OpenGL
4.4
4.6
Shader Model
5.0
6.7
Vulkan
N/A
1.3