Home GPU Comparison NVIDIA GeForce GTX 460 OEM vs NVIDIA GeForce GT 640 OEM Rebrand

NVIDIA GeForce GTX 460 OEM vs NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 460 OEM and 1536MB VRAM GeForce GT 640 OEM Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 460 OEM 's Advantages
Larger VRAM bandwidth (108.8GB/s vs 38.40GB/s)
192 additional rendering cores
NVIDIA GeForce GT 640 OEM Rebrand 's Advantages
Released 1 years and 6 months late
More VRAM (1536GB vs 1024GB)
Lower TDP (75W vs 150W)

Score

Benchmark

FP32 (float)
GeForce GTX 460 OEM +110%
0.874 TFLOPS
GeForce GT 640 OEM Rebrand
0.415 TFLOPS
VS

Graphics Card

Oct 2010
Release Date
Apr 2012
GeForce 400
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
850 MHz
Memory Clock
800 MHz

Memory

1024MB
Memory Size
1536MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
192bit
108.8GB/s
Bandwidth
38.40GB/s

Render Config

-
-
-
7
SM Count
3
336
Shading Units
144
56
TMUs
24
32
ROPs
24
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
384 KB
-
-
-

Theoretical Performance

9.100 GPixel/s
Pixel Rate
4.320 GPixel/s
36.40 GTexel/s
Texture Rate
17.28 GTexel/s
-
-
-
873.6 GFLOPS
FP32 (float)
414.7 GFLOPS
72.80 GFLOPS
FP64 (double)
34.56 GFLOPS

Board Design

150W
TDP
75W
450 W
Suggested PSU
250 W
2x DVI 1x mini-HDMI 1.3a
Outputs
2x DVI 1x mini-HDMI 1.3a
2x 6-pin
Power Connectors
None

Graphics Processor

GF104
GPU Name
GF116
GF104-325-A1
GPU Variant
GF116-150-A1
Fermi
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.95 billion
Transistors
1.17 billion
332 mm²
Die Size
238 mm²

Graphics Features

12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.1
OpenCL
1.1
N/A
Vulkan
N/A
2.1
CUDA
2.1
5.1
Shader Model
5.1

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