AMD Radeon R9 270X vs AMD Radeon RX 7400
GPU · Specs Compare
Graphics Card
Release Date
Oct 2013
Aug 2025
Generation
Volcanic Islands
Navi III
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
1000 MHz
1452 MHz
Boost Clock
1050 MHz
2300 MHz
Memory Clock
1400 MHz
2250 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
128bit
Bandwidth
179.2GB/s
288.0GB/s
Render Config
Compute Units
20
28
Shading Units
1280
1792
TMUs
80
112
ROPs
32
64
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
2 MB
RT Cores
—
28
L3 Cache
—
64 MB
Theoretical Performance
Pixel Rate
33.60 GPixel/s
147.2 GPixel/s
Texture Rate
84.00 GTexel/s
257.6 GTexel/s
FP32 (float)
2.688 TFLOPS
16.49 TFLOPS
FP64 (double)
168.0 GFLOPS
515.2 GFLOPS
FP16 (half)
—
32.97 TFLOPS
Graphics Processor
GPU Name
Curacao
Navi 33
GPU Variant
Curacao XT(215-0848004)
Navi 33
Architecture
GCN 1.0
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
6 nm
Transistors
2.8 billion
13.3 billion
Die Size
212 mm²
204 mm²
Board Design
TDP
180W
43W
Suggested PSU
450 W
200 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.1a3x DisplayPort 2.1
Power Connectors
2x 6-pin
1x 6-pin
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
1.2
2.2
Vulkan
1.2
1.3
Shader Model
5.1
6.8
Benchmark
3DMark Time Spy
1,769
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.