Home GPU Comparison NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce 8400 GS PCI Rev. 2

NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce 8400 GS PCI Rev. 2

NVIDIA GeForce GTX 660 Rev. 2
VS
NVIDIA GeForce 8400 GS PCI Rev. 2
NVIDIA GeForce GTX 660 Rev. 2 NVIDIA GeForce 8400 GS PCI Rev. 2
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 512MB VRAM GeForce 8400 GS PCI Rev. 2 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
Released 7 years and 5 months late
Boost Clock1032MHz
Larger VRAM bandwidth (144.2GB/s vs 8.000GB/s)
944 additional rendering cores
NVIDIA GeForce 8400 GS PCI Rev. 2 's Advantages
Lower TDP (40W vs 140W)

Score

Benchmark

FP32 (float)
GeForce GTX 660 Rev. 2 +4979%
1.981 TFLOPS
GeForce 8400 GS PCI Rev. 2
0.039 TFLOPS
GeForce GTX 660 Rev. 2
VS
GeForce 8400 GS PCI Rev. 2

Graphics Card

Sep 2014
Release Date
Apr 2007
GeForce 600
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCI

Clock Speeds

980 MHz
Base Clock
-
1032 MHz
Boost Clock
-
1502 MHz
Memory Clock
500 MHz

Memory

2GB
Memory Size
512MB
GDDR5
Memory Type
DDR3
192bit
Memory Bus
64bit
144.2GB/s
Bandwidth
8.000GB/s

Render Config

-
SM Count
2
-
Compute Units
-
960
Shading Units
16
80
TMUs
8
24
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
-
384 KB
L2 Cache
32 KB

Theoretical Performance

20.64 GPixel/s
Pixel Rate
2.080 GPixel/s
82.56 GTexel/s
Texture Rate
4.160 GTexel/s
-
FP16 (half)
-
1.981 TFLOPS
FP32 (float)
39.36 GFLOPS
82.56 GFLOPS
FP64 (double)
-

Graphics Processor

GK104
GPU Name
GT218
-
GPU Variant
-
Kepler
Architecture
Tesla 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
3.54 billion
Transistors
0.26 billion
294 mm²
Die Size
57 mm²

Board Design

140W
TDP
40W
300 W
Suggested PSU
200 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1x VGA
1x 6-pin
Power Connectors
None

Graphics Features

12 (11_0)
DirectX
11.1 (10_1)
4.6
OpenGL
3.3
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
1.2
5.1
Shader Model
4.1

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