Home GPU Comparison ATI Radeon HD 3550 vs NVIDIA GeForce GT 640

ATI Radeon HD 3550 vs NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3550 and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3550 's Advantages
Lower TDP (30W vs 65W)
NVIDIA GeForce GT 640 's Advantages
Released 3 years and 10 months late
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (28.51GB/s vs 6.336GB/s)
344 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 3550
0.048 TFLOPS
GeForce GT 640 +1343%
0.693 TFLOPS
VS

Graphics Card

Aug 2008
Release Date
Jun 2012
Radeon R600
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
396 MHz
Memory Clock
891 MHz

Memory

512MB
Memory Size
2GB
DDR2
Memory Type
DDR3
64bit
Memory Bus
128bit
6.336GB/s
Bandwidth
28.51GB/s

Render Config

2
Compute Units
-
-
-
-
40
Shading Units
384
4
TMUs
32
4
ROPs
16
-
-
-
-
-
-
-
L1 Cache
16 KB (per SMX)
64 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

2.376 GPixel/s
Pixel Rate
7.216 GPixel/s
2.376 GTexel/s
Texture Rate
28.86 GTexel/s
-
-
-
47.52 GFLOPS
FP32 (float)
692.7 GFLOPS
-
FP64 (double)
28.86 GFLOPS

Board Design

30W
TDP
65W
200 W
Suggested PSU
250 W
2x DisplayPort
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
None
Power Connectors
None

Graphics Processor

RV620
GPU Name
GK107
RV620 PRO (215-0670006)
GPU Variant
GK107-300-A2
TeraScale
Architecture
Kepler
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.181 billion
Transistors
1.27 billion
67 mm²
Die Size
118 mm²

Graphics Features

10.1 (10_1)
DirectX
12 (11_0)
3.3
OpenGL
4.6
N/A
OpenCL
3.0
N/A
Vulkan
1.1
-
CUDA
3.0
4.1
Shader Model
5.1

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