AMD Radeon R9 390 X2 vs AMD Radeon RX 7800 XT
GPU · Specs Compare
Graphics Card
Release Date
Sep 2015
Aug 2023
Generation
Pirate Islands
Navi III
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1350 MHz
2438 MHz
Base Clock
—
1295 MHz
Boost Clock
—
2430 MHz
Memory
Memory Size
8GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
512bit
256bit
Bandwidth
345.6GB/s
624.1GB/s
Render Config
Compute Units
40
60
Shading Units
2560
3840
TMUs
160
240
ROPs
64
96
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
1024 KB
4 MB
RT Cores
—
60
L3 Cache
—
64 MB
Theoretical Performance
Pixel Rate
64.00 GPixel/s
233.3 GPixel/s
Texture Rate
160.0 GTexel/s
583.2 GTexel/s
FP32 (float)
5.120 TFLOPS
37.32 TFLOPS
FP64 (double)
640.0 GFLOPS
1166.4 GFLOPS
FP16 (half)
—
74.65 TFLOPS
Graphics Processor
GPU Name
Grenada
Navi 32
GPU Variant
Grenada PRO(215-0880030)
Navi 32 XT(215-180000006)
Architecture
GCN 2.0
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
6.2 billion
28.1 billion
Die Size
438 mm²
346 mm²
Board Design
TDP
580W
263W
Suggested PSU
950 W
600 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.1a3x DisplayPort 2.1
Power Connectors
4x 8-pin
2x 8-pin
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.0
2.2
Vulkan
1.2
1.3
Shader Model
6.3
6.8
Benchmark
3DMark Time Spy
—
20,086
3DMark Time Spy Extreme
—
9,448
3DMark Speed Way
—
3,978
Shadow of the Tomb Raider 2160p
—
82
Cyberpunk 2077 2160p
—
38
Shadow of the Tomb Raider 1440p
—
158
Cyberpunk 2077 1440p
—
82
Shadow of the Tomb Raider 1080p
—
234
Cyberpunk 2077 1080p
—
126
GTA 5 2160p
—
140
GTA 5 1440p
—
140
GTA 5 1080p
—
190
Horizon Forbidden West 1080p
—
98
Horizon Forbidden West 1440p
—
81
Horizon Forbidden West 2160p
—
52
▲ Specs Compare
Data sourced from official specifications and benchmark tests.