NVIDIA GeForce RTX 4090 Max-Q vs AMD Radeon R9 270
GPU · Specs Compare
Graphics Card
Release Date
Jan 2023
Nov 2013
Generation
GeForce 40 Mobile
Volcanic Islands
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
930 MHz
900 MHz
Boost Clock
1455 MHz
925 MHz
Memory Clock
1750 MHz
1400 MHz
Memory
Memory Size
16GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
256bit
Bandwidth
448.0GB/s
179.2GB/s
Render Config
SM Count
76
—
Shading Units
9728
1280
TMUs
304
80
ROPs
112
32
Tensor Cores
304
—
RT Cores
76
—
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
64 MB
512 KB
Compute Units
—
20
Theoretical Performance
Pixel Rate
163.0 GPixel/s
29.60 GPixel/s
Texture Rate
442.3 GTexel/s
74.00 GTexel/s
FP16 (half)
28.31 TFLOPS
—
FP32 (float)
28.31 TFLOPS
2.368 TFLOPS
FP64 (double)
442.3 GFLOPS
148.0 GFLOPS
Graphics Processor
GPU Name
AD103
Curacao
GPU Variant
GN21-X11
Curacao PRO(215-0848000)
Architecture
Ada Lovelace
GCN 1.0
Foundry
TSMC
TSMC
Process Size
4 nm
28 nm
Transistors
45.9 billion
2.8 billion
Die Size
379 mm²
212 mm²
Board Design
TDP
80W
150W
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin
Suggested PSU
—
450 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
1.2
Vulkan
1.3
1.2
CUDA
8.9
—
Shader Model
6.7
5.1
Benchmark
3DMark Time Spy
—
1,603
▲ Specs Compare
Data sourced from official specifications and benchmark tests.