Home GPU Comparison NVIDIA GeForce GT 640 vs AMD Radeon RX 550

NVIDIA GeForce GT 640 vs AMD Radeon RX 550

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 2GB VRAM Radeon RX 550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550 's Advantages
Released 4 years and 10 months late
Boost Clock1183MHz
Larger VRAM bandwidth (112.0GB/s vs 28.51GB/s)
128 additional rendering cores
Lower TDP (50W vs 65W)

Score

Benchmark

FP32 (float)
GeForce GT 640
0.693 TFLOPS
Radeon RX 550 +74%
1.211 TFLOPS
VS

Graphics Card

Jun 2012
Release Date
Apr 2017
GeForce 600
Generation
Polaris
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8

Clock Speeds

-
Base Clock
1100 MHz
-
Boost Clock
1183 MHz
891 MHz
Memory Clock
1750 MHz

Memory

2GB
Memory Size
2GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
128bit
28.51GB/s
Bandwidth
112.0GB/s

Render Config

-
Compute Units
8
-
-
-
384
Shading Units
512
32
TMUs
32
16
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

7.216 GPixel/s
Pixel Rate
18.93 GPixel/s
28.86 GTexel/s
Texture Rate
37.86 GTexel/s
-
FP16 (half)
1211 GFLOPS
692.7 GFLOPS
FP32 (float)
1211 GFLOPS
28.86 GFLOPS
FP64 (double)
75.71 GFLOPS

Board Design

65W
TDP
50W
250 W
Suggested PSU
250 W
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
None
Power Connectors
None

Graphics Processor

GK107
GPU Name
Lexa
GK107-300-A2
GPU Variant
Lexa PRO (215-0904018)
Kepler
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
28 nm
Process Size
14 nm
1.27 billion
Transistors
2.2 billion
118 mm²
Die Size
103 mm²

Graphics Features

12 (11_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
3.0
OpenCL
2.1
1.1
Vulkan
1.2
3.0
CUDA
-
5.1
Shader Model
6.4

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