NVIDIA GeForce GTX 670 vs ATI Radeon HD 4650

VS

NVIDIA GeForce GTX 670

ATI Radeon HD 4650

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 670 and 256MB VRAM Radeon HD 4650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 670 's Advantages

Released 3 years and 8 months late

Boost Clock980MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (192.3GB/s vs 22.40GB/s)

1024 additional rendering cores

ATI Radeon HD 4650 's Advantages

Lower TDP (48W vs 170W)

Score

Benchmark

FP32 (float)

GeForce GTX 670 +585%

2.634 TFLOPS

Radeon HD 4650

0.384 TFLOPS

GeForce GTX 670

VS

Radeon HD 4650

Graphics Card

May 2012

Release Date

Sep 2008

GeForce 600

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

915 MHz

Base Clock

-

980 MHz

Boost Clock

-

1502 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

192.3GB/s

Bandwidth

22.40GB/s

Render Config

-

Compute Units

4

-

1344

Shading Units

320

112

TMUs

32

ROPs

8

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

4.800 GPixel/s

109.8 GTexel/s

Texture Rate

19.20 GTexel/s

-

2.634 TFLOPS

FP32 (float)

384.0 GFLOPS

109.8 GFLOPS

FP64 (double)

-

Board Design

170W

TDP

48W

450 W

Suggested PSU

200 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

-

Graphics Processor

GK104

GPU Name

RV730

GK104-325-A2

GPU Variant

RV730 PRO (215-0719056)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

3.54 billion

Transistors

0.514 billion

294 mm²

Die Size

146 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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