NVIDIA GeForce GTX 980 vs ATI Radeon HD 3650

VS

NVIDIA GeForce GTX 980

ATI Radeon HD 3650

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 980 and 256MB VRAM Radeon HD 3650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 980 's Advantages

Released 6 years and 8 months late

Boost Clock1216MHz

More VRAM (4GB vs 256GB)

Larger VRAM bandwidth (224.4GB/s vs 25.60GB/s)

1928 additional rendering cores

ATI Radeon HD 3650 's Advantages

Lower TDP (65W vs 165W)

Score

Benchmark

FP32 (float)

GeForce GTX 980 +2762%

4.981 TFLOPS

Radeon HD 3650

0.174 TFLOPS

GeForce GTX 980

VS

Radeon HD 3650

Graphics Card

Sep 2014

Release Date

Jan 2008

GeForce 900

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1127 MHz

Base Clock

-

1216 MHz

Boost Clock

-

1753 MHz

Memory Clock

800 MHz

Memory

4GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

224.4GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

3

-

2048

Shading Units

120

128

TMUs

8

64

ROPs

4

-

48 KB (per SMM)

L1 Cache

-

2 MB

L2 Cache

128 KB

-

Theoretical Performance

77.82 GPixel/s

Pixel Rate

2.900 GPixel/s

155.6 GTexel/s

Texture Rate

5.800 GTexel/s

-

4.981 TFLOPS

FP32 (float)

174.0 GFLOPS

155.6 GFLOPS

FP64 (double)

-

Board Design

165W

TDP

65W

450 W

Suggested PSU

250 W

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Processor

GM204

GPU Name

RV635

GM204-400-A1

GPU Variant

RV635 PRO (215-0682008)

Maxwell 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

5.2 billion

Transistors

0.378 billion

398 mm²

Die Size

135 mm²

Graphics Features

12 (12_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.3

Vulkan

N/A

5.2

CUDA

-

6.4

Shader Model

4.1

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