AMD Radeon RX 6650 XT vs NVIDIA GeForce GTX 660 Rev. 2
GPU · Specs Compare
Graphics Card
Release Date
May 2022
Sep 2014
Generation
Navi II
GeForce 600
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
2055 MHz
980 MHz
Boost Clock
2635 MHz
1032 MHz
Memory Clock
2190 MHz
1502 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
192bit
Bandwidth
280.3GB/s
144.2GB/s
Render Config
Compute Units
32
—
Shading Units
2048
960
TMUs
128
80
ROPs
64
24
RT Cores
32
—
L1 Cache
128 KB per Array
16 KB (per SMX)
L2 Cache
2 MB
384 KB
L3 Cache
32 MB
—
Theoretical Performance
Pixel Rate
168.6 GPixel/s
20.64 GPixel/s
Texture Rate
337.3 GTexel/s
82.56 GTexel/s
FP16 (half)
21.59 TFLOPS
—
FP32 (float)
10.79 TFLOPS
1.981 TFLOPS
FP64 (double)
674.6 GFLOPS
82.56 GFLOPS
Graphics Processor
GPU Name
Navi 23
GK104
GPU Variant
Navi 23 KXT(215-130000136)
—
Architecture
RDNA 2.0
Kepler
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
11.06 billion
3.54 billion
Die Size
237 mm²
294 mm²
Board Design
TDP
176W
140W
Suggested PSU
450 W
300 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 8-pin
1x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.3
1.1
Shader Model
6.5
5.1
CUDA
—
3.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.