Radeon RX 7900 XT vs Radeon RX Vega Nano
We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 8GB VRAM Radeon RX Vega Nano to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 7900 XT 's Advantages
Boost Clock has increased by 55% (2394MHz vs 1546MHz)
More VRAM (20GB vs 8GB)
Larger VRAM bandwidth (800.0GB/s vs 409.6GB/s)
1280 additional rendering cores
Radeon RX Vega Nano 's Advantages
Lower TDP (175W vs 300W)
Score
Benchmark
FP32 (float)
Radeon RX 7900 XT
+306%
51480
Radeon RX Vega Nano
12660
Graphics Card
Nov 2022
Release Date
Unknown
Navi III
Generation
Vega
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1387 MHz
Base Clock
1247 MHz
2394 MHz
Boost Clock
1546 MHz
2500 MHz
Memory Clock
800 MHz
Memory
20GB
Memory Size
8GB
GDDR6
Memory Type
HBM2
320bit
Memory Bus
2048bit
800.0GB/s
Bandwidth
409.6GB/s
Render Config
84
Compute Units
64
5376
Shading Units
4096
336
TMUs
256
192
ROPs
64
84
RT Cores
-
256 KB per Array
L1 Cache
16 KB (per CU)
6 MB
L2 Cache
4 MB
80 MB
L3 Cache
-
Theoretical Performance
459.6 GPixel/s
Pixel Rate
98.94 GPixel/s
804.4 GTexel/s
Texture Rate
395.8 GTexel/s
103.0 TFLOPS
FP16 (half)
-
51.48 TFLOPS
FP32 (float)
12.66 TFLOPS
1.609 TFLOPS
FP64 (double)
791.6 GFLOPS
Board Design
300W
TDP
175W
700 W
Suggested PSU
450 W
1x HDMI 2.1a
2x DisplayPort 2.1
1x USB Type-C
Outputs
1x HDMI 2.0b
3x DisplayPort 1.4a
2x 8-pin
Power Connectors
1x 8-pin
Graphics Processor
Navi 31
GPU Name
Vega 10
Navi 31 XT
(215-145000156)
GPU Variant
Vega 10 XT
(215-0894200)
RDNA 3.0
Architecture
GCN 5.0
TSMC
Foundry
GlobalFoundries
5 nm
Process Size
14 nm
57.7 billion
Transistors
12.5 billion
529 mm²
Die Size
495 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (12_1)
4.6
OpenGL
4.6
2.2
OpenCL
2.1
1.3
Vulkan
1.2
6.7
Shader Model
6.4
