Home GPU Comparison NVIDIA GeForce 8600 GT vs NVIDIA GeForce GT 640

NVIDIA GeForce 8600 GT vs NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 512MB VRAM GeForce 8600 GT 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 8600 GT 's Advantages
Lower TDP (47W vs 65W)
NVIDIA GeForce GT 640 's Advantages
Released 5 years and 2 months late
Larger VRAM bandwidth (28.51GB/s vs 22.40GB/s)
352 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce 8600 GT
0.076 TFLOPS
GeForce GT 640 +811%
0.693 TFLOPS
VS

Graphics Card

Apr 2007
Release Date
Jun 2012
GeForce 8
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
Base Clock
-
-
Boost Clock
-
700 MHz
Memory Clock
891 MHz

Memory

512MB
Memory Size
2GB
GDDR3
Memory Type
DDR3
128bit
Memory Bus
128bit
22.40GB/s
Bandwidth
28.51GB/s

Render Config

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

Theoretical Performance

4.320 GPixel/s
Pixel Rate
7.216 GPixel/s
8.640 GTexel/s
Texture Rate
28.86 GTexel/s
-
FP16 (half)
-
76.16 GFLOPS
FP32 (float)
692.7 GFLOPS
-
FP64 (double)
28.86 GFLOPS

Graphics Processor

G84
GPU Name
GK107
G84-303-A2
GPU Variant
GK107-300-A2
Tesla
Architecture
Kepler
TSMC
Foundry
TSMC
80 nm
Process Size
28 nm
0.289 billion
Transistors
1.27 billion
169 mm²
Die Size
118 mm²

Board Design

47W
TDP
65W
200 W
Suggested PSU
250 W
2x DVI 1x S-Video
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
None
Power Connectors
None

Graphics Features

11.1 (10_0)
DirectX
12 (11_0)
3.3
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.1
1.1
CUDA
3.0
4.0
Shader Model
5.1

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