AMD Radeon HD 7990 vs AMD Radeon RX 6650M XT
GPU Specs Compare
Graphics Card
Release Date
Apr 2013
Jan 2022
Generation
Southern Islands
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
950 MHz
2068 MHz
Boost Clock
1000 MHz
2416 MHz
Memory Clock
1500 MHz
2000 MHz
Memory
Memory Size
3GB
8GB
Memory Type
GDDR5
GDDR6
Memory Bus
384bit
128bit
Bandwidth
288.0GB/s
256.0GB/s
Render Config
Compute Units
32
32
Shading Units
2048
2048
TMUs
128
128
ROPs
32
64
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
768 KB
2 MB
RT Cores
-
32
L3 Cache
-
32 MB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
154.6 GPixel/s
Texture Rate
128.0 GTexel/s
309.2 GTexel/s
FP32 (float)
4.096 TFLOPS
9.896 TFLOPS
FP64 (double)
1024 GFLOPS
618.5 GFLOPS
FP16 (half)
-
19.79 TFLOPS
Graphics Processor
GPU Name
Malta
Navi 23
GPU Variant
Malta XT(215-0849026)
-
Architecture
GCN 1.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
4.313 billion
11.06 billion
Die Size
365 mm²
237 mm²
Board Design
TDP
375W
120W
Suggested PSU
750 W
-
Outputs
1x DVI4x mini-DisplayPort 1.2
No outputs
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.3
Shader Model
5.1
6.5