Home GPU Comparison NVIDIA GeForce GTX 660 Rev. 2 vs AMD Radeon Pro W6400

NVIDIA GeForce GTX 660 Rev. 2 vs AMD Radeon Pro W6400

NVIDIA GeForce GTX 660 Rev. 2
VS
AMD Radeon Pro W6400
NVIDIA GeForce GTX 660 Rev. 2
AMD Radeon Pro W6400
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 4GB VRAM Radeon Pro W6400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Rev. 2 's Advantages
Larger VRAM bandwidth (144.2GB/s vs 112.0GB/s)
192 additional rendering cores
AMD Radeon Pro W6400 's Advantages
Released 7 years and 4 months late
Boost Clock has increased by 126% (2331MHz vs 1032MHz)
More VRAM (4GB vs 2GB)
Lower TDP (50W vs 140W)

Score

Benchmark

FP32 (float)
GeForce GTX 660 Rev. 2
1.981 TFLOPS
Radeon Pro W6400 +80%
3.58 TFLOPS
GeForce GTX 660 Rev. 2
VS
Radeon Pro W6400

Graphics Card

Sep 2014
Release Date
Jan 2022
GeForce 600
Generation
Radeon Pro
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x4

Clock Speeds

980 MHz
Base Clock
2331 MHz
1032 MHz
Boost Clock
2331 MHz
1502 MHz
Memory Clock
1750 MHz

Memory

2GB
Memory Size
4GB
GDDR5
Memory Type
GDDR6
192bit
Memory Bus
64bit
144.2GB/s
Bandwidth
112.0GB/s

Render Config

-
Compute Units
12
-
-
-
960
Shading Units
768
80
TMUs
48
24
ROPs
32
-
-
-
-
RT Cores
12
16 KB (per SMX)
L1 Cache
128 KB per Array
384 KB
L2 Cache
1024 KB
-
L3 Cache
8 MB

Theoretical Performance

20.64 GPixel/s
Pixel Rate
74.59 GPixel/s
82.56 GTexel/s
Texture Rate
111.9 GTexel/s
-
FP16 (half)
7.161 TFLOPS
1.981 TFLOPS
FP32 (float)
3.580 TFLOPS
82.56 GFLOPS
FP64 (double)
223.8 GFLOPS

Board Design

140W
TDP
50W
300 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DisplayPort 1.4a
1x 6-pin
Power Connectors
None

Graphics Processor

GK104
GPU Name
Navi 24
-
GPU Variant
Navi 24 XL-W
Kepler
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
6 nm
3.54 billion
Transistors
5.4 billion
294 mm²
Die Size
107 mm²

Graphics Features

12 (11_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
2.2
1.1
Vulkan
1.3
3.0
CUDA
-
5.1
Shader Model
6.6

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