NVIDIA GeForce GTX 650 vs ATI Radeon HD 4770

VS

NVIDIA GeForce GTX 650

ATI Radeon HD 4770

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 650 and 512MB VRAM Radeon HD 4770 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 650 's Advantages

Released 3 years and 5 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (80.00GB/s vs 51.20GB/s)

Lower TDP (65W vs 80W)

ATI Radeon HD 4770 's Advantages

256 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 650

0.812 TFLOPS

Radeon HD 4770 +18%

0.96 TFLOPS

GeForce GTX 650

VS

Radeon HD 4770

Graphics Card

Sep 2012

Release Date

Apr 2009

GeForce 600

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

80.00GB/s

Bandwidth

51.20GB/s

Render Config

-

Compute Units

8

-

384

Shading Units

640

32

TMUs

32

16

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

8.464 GPixel/s

Pixel Rate

12.00 GPixel/s

33.86 GTexel/s

Texture Rate

24.00 GTexel/s

-

812.5 GFLOPS

FP32 (float)

960.0 GFLOPS

33.86 GFLOPS

FP64 (double)

192.0 GFLOPS

Board Design

65W

TDP

80W

250 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.4a

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

GK107

GPU Name

RV740

GK107-450-A2

GPU Variant

RV740 XT (215-0727019)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

0.826 billion

118 mm²

Die Size

137 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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