NVIDIA GeForce GTX 660 vs ATI Radeon HD 4250

VS

NVIDIA GeForce GTX 660

ATI Radeon HD 4250

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 512MB VRAM Radeon HD 4250 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 's Advantages

Released 3 years and 7 months late

Boost Clock1032MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (144.2GB/s vs 6.336GB/s)

920 additional rendering cores

ATI Radeon HD 4250 's Advantages

Lower TDP (25W vs 140W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 +4027%

1.981 TFLOPS

Radeon HD 4250

0.048 TFLOPS

GeForce GTX 660

VS

Radeon HD 4250

Graphics Card

Sep 2012

Release Date

Feb 2009

GeForce 600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

980 MHz

Base Clock

-

1032 MHz

Boost Clock

-

1502 MHz

Memory Clock

396 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

192bit

Memory Bus

64bit

144.2GB/s

Bandwidth

6.336GB/s

Render Config

-

Compute Units

2

-

960

Shading Units

40

80

TMUs

4

24

ROPs

4

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

64 KB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

2.376 GPixel/s

82.56 GTexel/s

Texture Rate

2.376 GTexel/s

-

1.981 TFLOPS

FP32 (float)

47.52 GFLOPS

82.56 GFLOPS

FP64 (double)

-

Board Design

140W

TDP

25W

300 W

Suggested PSU

200 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

GK106

GPU Name

RV620

GK106-400-A1

GPU Variant

RV620 LE

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.54 billion

Transistors

0.181 billion

221 mm²

Die Size

67 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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