AMD Radeon RX 7900 GRE vs AMD Radeon R9 390
GPU · Specs Compare
Graphics Card
Release Date
Jul 2023
Jun 2015
Generation
Navi III
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1287 MHz
—
Boost Clock
2245 MHz
—
Memory Clock
2250 MHz
1500 MHz
Memory
Memory Size
16GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
512bit
Bandwidth
576.0GB/s
384.0GB/s
Render Config
Compute Units
80
40
Shading Units
5120
2560
TMUs
320
160
ROPs
160
64
RT Cores
80
—
L1 Cache
256 KB per Array
16 KB (per CU)
L2 Cache
6 MB
1024 KB
L3 Cache
64 MB
—
Theoretical Performance
Pixel Rate
359.2 GPixel/s
64.00 GPixel/s
Texture Rate
718.4 GTexel/s
160.0 GTexel/s
FP16 (half)
91.96 TFLOPS
—
FP32 (float)
45.98 TFLOPS
5.120 TFLOPS
FP64 (double)
1436.8 GFLOPS
640.0 GFLOPS
Graphics Processor
GPU Name
Navi 31
Grenada
GPU Variant
Navi 31 XL(215-145000206)
Grenada PRO(215-0880030)
Architecture
RDNA 3.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
57.7 billion
6.2 billion
Die Size
529 mm²
438 mm²
Board Design
TDP
260W
275W
Suggested PSU
600 W
600 W
Outputs
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 8-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.2
2.0
Vulkan
1.3
1.2
Shader Model
6.8
6.3
Benchmark
3DMark Time Spy
22,476
3,964
3DMark Time Spy Extreme
10,591
1,931
3DMark Speed Way
4,417
—
Cyberpunk 2077 2160p
40
—
Cyberpunk 2077 1440p
88
—
Blender
3,114
—
Cyberpunk 2077 1080p
130
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.