Home GPU Comparison NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce RTX 3090

NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce RTX 3090

NVIDIA GeForce GTX 660 Rev. 2
VS
NVIDIA GeForce RTX 3090
NVIDIA GeForce GTX 660 Rev. 2
NVIDIA GeForce RTX 3090
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 24GB VRAM GeForce RTX 3090 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
Lower TDP (140W vs 350W)
NVIDIA GeForce RTX 3090 's Advantages
Released 6 years late
Boost Clock has increased by 64% (1695MHz vs 1032MHz)
More VRAM (24GB vs 2GB)
Larger VRAM bandwidth (936.2GB/s vs 144.2GB/s)
9536 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce GTX 660 Rev. 2
1.981 TFLOPS
GeForce RTX 3090 +1696%
35.58 TFLOPS
GeForce GTX 660 Rev. 2
VS
GeForce RTX 3090

Graphics Card

Sep 2014
Release Date
Sep 2020
GeForce 600
Generation
GeForce 30
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x16

Clock Speeds

980 MHz
Base Clock
1395 MHz
1032 MHz
Boost Clock
1695 MHz
1502 MHz
Memory Clock
1219 MHz

Memory

2GB
Memory Size
24GB
GDDR5
Memory Type
GDDR6X
192bit
Memory Bus
384bit
144.2GB/s
Bandwidth
936.2GB/s

Render Config

-
-
-
-
SM Count
82
960
Shading Units
10496
80
TMUs
328
24
ROPs
112
-
Tensor Cores
328
-
RT Cores
82
16 KB (per SMX)
L1 Cache
128 KB (per SM)
384 KB
L2 Cache
6 MB
-
-
-

Theoretical Performance

20.64 GPixel/s
Pixel Rate
189.8 GPixel/s
82.56 GTexel/s
Texture Rate
556.0 GTexel/s
-
FP16 (half)
35.58 TFLOPS
1.981 TFLOPS
FP32 (float)
35.58 TFLOPS
82.56 GFLOPS
FP64 (double)
556.0 GFLOPS

Board Design

140W
TDP
350W
300 W
Suggested PSU
750 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x HDMI 2.1 3x DisplayPort 1.4a
1x 6-pin
Power Connectors
1x 12-pin

Graphics Processor

GK104
GPU Name
GA102
-
GPU Variant
GA102-300-A1
Kepler
Architecture
Ampere
TSMC
Foundry
Samsung
28 nm
Process Size
8 nm
3.54 billion
Transistors
28.3 billion
294 mm²
Die Size
628 mm²

Graphics Features

12 (11_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.0
CUDA
8.6
5.1
Shader Model
6.6

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