Home GPU Comparison NVIDIA GeForce GTX 480 Core 512 vs NVIDIA GeForce GT 640

NVIDIA GeForce GTX 480 Core 512 vs NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 480 Core 512 and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 480 Core 512 's Advantages
Larger VRAM bandwidth (134.4GB/s vs 28.51GB/s)
128 additional rendering cores
NVIDIA GeForce GT 640 's Advantages
More VRAM (2GB vs 1536GB)
Lower TDP (65W vs 375W)

Score

Benchmark

FP32 (float)
GeForce GTX 480 Core 512 +55%
1.078 TFLOPS
GeForce GT 640
0.693 TFLOPS
VS

Graphics Card

Unknown
Release Date
Jun 2012
GeForce 400
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
700 MHz
Memory Clock
891 MHz

Memory

1536MB
Memory Size
2GB
GDDR5
Memory Type
DDR3
384bit
Memory Bus
128bit
134.4GB/s
Bandwidth
28.51GB/s

Render Config

-
-
-
16
SM Count
-
512
Shading Units
384
64
TMUs
32
48
ROPs
16
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
16 KB (per SMX)
768 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

16.86 GPixel/s
Pixel Rate
7.216 GPixel/s
33.73 GTexel/s
Texture Rate
28.86 GTexel/s
-
-
-
1078 GFLOPS
FP32 (float)
692.7 GFLOPS
-
FP64 (double)
28.86 GFLOPS

Board Design

375W
TDP
65W
750 W
Suggested PSU
250 W
2x DVI 1x mini-HDMI 1.3a
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
2x 8-pin
Power Connectors
None

Graphics Processor

GF100
GPU Name
GK107
GF100-ES-DT1-A2
GPU Variant
GK107-300-A2
Fermi
Architecture
Kepler
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
3.1 billion
Transistors
1.27 billion
529 mm²
Die Size
118 mm²

Graphics Features

12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.1
2.0
CUDA
3.0
5.1
Shader Model
5.1

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