GeForce RTX 4090 vs GeForce GTX 660 OEM
We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 and 1536MB VRAM GeForce GTX 660 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 4090 Advantages
Released 10 years and 1 months late
Boost Clock has increased by 184% (2520MHz vs 888MHz)
More VRAM (24GB vs 1536GB)
Larger VRAM bandwidth (1.01TB/s vs 134.4GB/s)
15232 additional rendering cores
GeForce GTX 660 OEM Advantages
Lower TDP (130W vs 450W)
Score
Benchmark
FP32 (float)
GeForce RTX 4090
+3936%
82580
GeForce GTX 660 OEM
2046
3DMark Time Spy
GeForce RTX 4090
+2942%
36328
GeForce GTX 660 OEM
1194
3DMark Time Spy Extreme
GeForce RTX 4090
+7384%
19460
GeForce GTX 660 OEM
260
Graphics Card
Sep 2022
Release Date
Aug 2012
GeForce 40
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
2235 MHz
Base Clock
823 MHz
2520 MHz
Boost Clock
888 MHz
1313 MHz
Memory Clock
1400 MHz
Memory
24GB
Memory Size
1536MB
GDDR6X
Memory Type
GDDR5
384bit
Memory Bus
192bit
1.01TB/s
Bandwidth
134.4GB/s
Render Config
128
SM Count
-
16384
Shading Units
1152
512
TMUs
96
176
ROPs
24
512
Tensor Cores
-
128
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per SMX)
72 MB
L2 Cache
384 KB
Theoretical Performance
443.5 GPixel/s
Pixel Rate
21.31 GPixel/s
1290 GTexel/s
Texture Rate
85.25 GTexel/s
82.58 TFLOPS
FP16 (half)
-
82.58 TFLOPS
FP32 (float)
2.046 TFLOPS
1290 GFLOPS
FP64 (double)
85.25 GFLOPS
Board Design
450W
TDP
130W
850 W
Suggested PSU
300 W
1x HDMI 2.1
3x DisplayPort 1.4a
3x DisplayPort 1.4a
Outputs
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x HDMI 1.4a
1x DisplayPort 1.2
1x 16-pin
Power Connectors
1x 6-pin
Graphics Processor
AD102
GPU Name
GK104
AD102-300-A1
GPU Variant
GK104-200-KD-A2
Ada Lovelace
Architecture
Kepler
TSMC
Foundry
TSMC
5 nm
Process Size
28 nm
76.3 billion
Transistors
3.54 billion
609 mm²
Die Size
294 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
8.9
CUDA
3.0
6.8
Shader Model
5.1
