Radeon RX 7900 XT vs Radeon R9 Nano
We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 4GB VRAM Radeon R9 Nano to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 7900 XT Advantages
Released 7 years and 3 months late
Boost Clock2394MHz
More VRAM (20GB vs 4GB)
Larger VRAM bandwidth (800.0GB/s vs 512.0GB/s)
1280 additional rendering cores
Radeon R9 Nano Advantages
Lower TDP (175W vs 300W)
Score
Benchmark
FP32 (float)
Radeon RX 7900 XT
+528%
51480
Radeon R9 Nano
8192
3DMark Time Spy
Radeon RX 7900 XT
+473%
26829
Radeon R9 Nano
4677
3DMark Time Spy Extreme
Radeon RX 7900 XT
+499%
13130
Radeon R9 Nano
2191
Shadow of the Tomb Raider 2160p
Radeon RX 7900 XT
+264%
102
Radeon R9 Nano
28
Shadow of the Tomb Raider 1440p
Radeon RX 7900 XT
+241%
205
Radeon R9 Nano
60
Shadow of the Tomb Raider 1080p
Radeon RX 7900 XT
+298%
299
Radeon R9 Nano
75
Graphics Card
Nov 2022
Release Date
Aug 2015
Navi III
Generation
Pirate Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1387 MHz
Base Clock
-
2394 MHz
Boost Clock
-
2500 MHz
Memory Clock
500 MHz
Memory
20GB
Memory Size
4GB
GDDR6
Memory Type
HBM
320bit
Memory Bus
4096bit
800.0GB/s
Bandwidth
512.0GB/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
2 MB
80 MB
L3 Cache
-
Theoretical Performance
459.6 GPixel/s
Pixel Rate
64.00 GPixel/s
804.4 GTexel/s
Texture Rate
256.0 GTexel/s
103.0 TFLOPS
FP16 (half)
8.192 TFLOPS
51.48 TFLOPS
FP32 (float)
8.192 TFLOPS
1.609 TFLOPS
FP64 (double)
512.0 GFLOPS
Board Design
300W
TDP
175W
700 W
Suggested PSU
450 W
1x HDMI 2.1a
2x DisplayPort 2.1
1x USB Type-C
2x DisplayPort 2.1
1x USB Type-C
Outputs
1x HDMI 1.4a
3x DisplayPort 1.2
3x DisplayPort 1.2
2x 8-pin
Power Connectors
1x 8-pin
Graphics Processor
Navi 31
GPU Name
Fiji
Navi 31 XT
(215-145000156)
(215-145000156)
GPU Variant
Fiji XT CA
(215-0862120)
(215-0862120)
RDNA 3.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
5 nm
Process Size
28 nm
57.7 billion
Transistors
8.9 billion
529 mm²
Die Size
596 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.2
OpenCL
2.0
1.3
Vulkan
1.2
6.7
Shader Model
6.3
