AMD Radeon HD 6970 vs ATI Radeon HD 3650

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 and 256MB VRAM Radeon HD 3650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970 's Advantages

Released 2 years and 11 months late

Larger VRAM bandwidth (176.0GB/s vs 25.60GB/s)

1416 additional rendering cores

ATI Radeon HD 3650 's Advantages

Lower TDP (65W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 6970 +1453%

2.703 TFLOPS

Radeon HD 3650

0.174 TFLOPS

Radeon HD 6970

VS

Radeon HD 3650

Graphics Card

Dec 2010

Release Date

Jan 2008

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

176.0GB/s

Bandwidth

25.60GB/s

Render Config

-

SM Count

-

24

Compute Units

3

1536

Shading Units

120

96

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

128 KB

Theoretical Performance

28.16 GPixel/s

Pixel Rate

2.900 GPixel/s

84.48 GTexel/s

Texture Rate

5.800 GTexel/s

-

FP16 (half)

-

2.703 TFLOPS

FP32 (float)

174.0 GFLOPS

675.8 GFLOPS

FP64 (double)

-

Graphics Processor

Cayman

GPU Name

RV635

Cayman XT (215-0807007)

GPU Variant

RV635 PRO (215-0682008)

TeraScale 3

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.64 billion

Transistors

0.378 billion

389 mm²

Die Size

135 mm²

Board Design

250W

TDP

65W

600 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

4.1

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