NVIDIA GeForce GTX 650 vs ATI Radeon HD 4650

VS

NVIDIA GeForce GTX 650

ATI Radeon HD 4650

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 650 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 650 's Advantages

Released 4 years late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (80.00GB/s vs 22.40GB/s)

64 additional rendering cores

ATI Radeon HD 4650 's Advantages

Lower TDP (48W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GTX 650 +111%

0.812 TFLOPS

Radeon HD 4650

0.384 TFLOPS

GeForce GTX 650

VS

Radeon HD 4650

Graphics Card

Sep 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

-

1250 MHz

Memory Clock

700 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

80.00GB/s

Bandwidth

22.40GB/s

Render Config

-

Compute Units

4

-

384

Shading Units

320

32

TMUs

32

16

ROPs

8

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

8.464 GPixel/s

Pixel Rate

4.800 GPixel/s

33.86 GTexel/s

Texture Rate

19.20 GTexel/s

-

812.5 GFLOPS

FP32 (float)

384.0 GFLOPS

33.86 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

48W

250 W

Suggested PSU

200 W

2x DVI 1x mini-HDMI 1.4a

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

-

Graphics Processor

GK107

GPU Name

RV730

GK107-450-A2

GPU Variant

RV730 PRO (215-0719056)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.27 billion

Transistors

0.514 billion

118 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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