Radeon HD 7990 and Radeon RX 7800 XT - video card comparison
Passmark - benchmark score Radeon HD 7990 vs Radeon RX 7800 XT
Radeon HD 7990
5732
Radeon RX 7800 XT
24810
Radeon HD 7990
Radeon RX 7800 XT
Architecture
GCN 1.0 (2012−2020)
RDNA 3
GPU code name
Malta
Navi 32
Market segment
Desktop
Desktop
Release date
April 2013
August 2023
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 8-pin
2x 8-pin
Boost clock speed
1000 MHz
2430 MHz
Core clock speed
950 MHz
-
Floating-point performance
2x 4,096 gflops
-
Manufacturing process technology
28 nm
5 nm
Number of transistors
4,313 million
28,100 million
Pipelines / CUDA cores
2048
3840
Power consumption (TDP)
375 Watt
263 Watt
Texture fill rate
128.0
604.8
Memory type
GDDR5
GDDR6
Maximum RAM amount
3 GB
16 GB
Memory bus width
384 Bit
256 Bit
Memory clock speed
6000 MHz
19500 MHz
Memory bandwidth
288.0 GB/s
576.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 4x mini-DisplayPort
1x HDMI 2.1a, 3x DisplayPort 2.1
HDMI
-
+
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenCL
1.2
2.2
OpenGL
4.6
4.6
Shader Model
5.1
6.7
Vulkan
1.2.131
1.3