AMD Radeon RX 7400 vs AMD Radeon R9 270
GPU Specs Compare
Graphics Card
Release Date
Aug 2025
Nov 2013
Generation
Navi III
Volcanic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
1452 MHz
900 MHz
Boost Clock
2300 MHz
925 MHz
Memory Clock
2250 MHz
1400 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
256bit
Bandwidth
288.0GB/s
179.2GB/s
Render Config
Compute Units
28
20
Shading Units
1792
1280
TMUs
112
80
ROPs
64
32
RT Cores
28
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
512 KB
L3 Cache
64 MB
-
Theoretical Performance
Pixel Rate
147.2 GPixel/s
29.60 GPixel/s
Texture Rate
257.6 GTexel/s
74.00 GTexel/s
FP16 (half)
32.97 TFLOPS
-
FP32 (float)
16.49 TFLOPS
2.368 TFLOPS
FP64 (double)
515.2 GFLOPS
148.0 GFLOPS
Graphics Processor
GPU Name
Navi 33
Curacao
GPU Variant
Navi 33
Curacao PRO(215-0848000)
Architecture
RDNA 3.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
6 nm
28 nm
Transistors
13.3 billion
2.8 billion
Die Size
204 mm²
212 mm²
Board Design
TDP
43W
150W
Suggested PSU
200 W
450 W
Outputs
1x HDMI 2.1a3x DisplayPort 2.1
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 6-pin
1x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.2
1.2
Vulkan
1.3
1.2
Shader Model
6.8
5.1
📊 Benchmark
3DMark Time Spy
-
1,603