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GPU Comparison
AMD Radeon R9 390 vs AMD Radeon RX 7800 XT
AMD Radeon R9 390 vs AMD Radeon RX 7800 XT
VS
AMD Radeon R9 390
AMD Radeon RX 7800 XT
We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 and 16GB VRAM Radeon RX 7800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 7800 XT 's Advantages
Released 8 years and 2 months late
Boost Clock2430MHz
More VRAM (16GB vs 8GB)
Larger VRAM bandwidth (624.1GB/s vs 384.0GB/s)
1280 additional rendering cores
Lower TDP (263W vs 275W)
Score
Benchmark
FP32 (float)
Radeon R9 390
5.12 TFLOPS
Radeon RX 7800 XT
+628%
37.32 TFLOPS
3DMark Time Spy
Radeon R9 390
3953
Radeon RX 7800 XT
+406%
20023
Radeon R9 390
VS
Radeon RX 7800 XT
Graphics Card
Jun 2015
Release Date
Aug 2023
Pirate Islands
Generation
Navi III
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
-
Base Clock
1295 MHz
-
Boost Clock
2430 MHz
1500 MHz
Memory Clock
2438 MHz
Memory
8GB
Memory Size
16GB
GDDR5
Memory Type
GDDR6
512bit
Memory Bus
256bit
384.0GB/s
Bandwidth
624.1GB/s
Render Config
-
SM Count
-
40
Compute Units
60
2560
Shading Units
3840
160
TMUs
240
64
ROPs
96
-
Tensor Cores
-
-
RT Cores
60
16 KB (per CU)
L1 Cache
128 KB per Array
1024 KB
L2 Cache
4 MB
Theoretical Performance
64.00 GPixel/s
Pixel Rate
233.3 GPixel/s
160.0 GTexel/s
Texture Rate
583.2 GTexel/s
-
FP16 (half)
74.65 TFLOPS
5.120 TFLOPS
FP32 (float)
37.32 TFLOPS
640.0 GFLOPS
FP64 (double)
1166 GFLOPS
Graphics Processor
Grenada
GPU Name
Navi 32
Grenada PRO (215-0880030)
GPU Variant
Navi 32 XT (215-180000006)
GCN 2.0
Architecture
RDNA 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
5 nm
6.2 billion
Transistors
28.1 billion
438 mm²
Die Size
346 mm²
Board Design
275W
TDP
263W
600 W
Suggested PSU
600 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x HDMI 2.1a 3x DisplayPort 2.1
1x 6-pin + 1x 8-pin
Power Connectors
2x 8-pin
Graphics Features
12 (12_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.0
OpenCL
2.2
1.2
Vulkan
1.3
-
CUDA
-
6.3
Shader Model
6.7
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