AMD Radeon HD 7770 GHz Edition vs NVIDIA GeForce GTX 650

VS

AMD Radeon HD 7770 GHz Edition

NVIDIA GeForce GTX 650

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 1024MB VRAM GeForce GTX 650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7770 GHz Edition 's Advantages

256 additional rendering cores

NVIDIA GeForce GTX 650 's Advantages

Released 7 months late

Larger VRAM bandwidth (80.00GB/s vs 72.00GB/s)

Lower TDP (65W vs 80W)

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition +57%

1.28 TFLOPS

GeForce GTX 650

0.812 TFLOPS

Radeon HD 7770 GHz Edition

VS

GeForce GTX 650

Graphics Card

Feb 2012

Release Date

Sep 2012

Southern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

80.00GB/s

Render Config

10

Compute Units

-

640

Shading Units

384

40

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

8.464 GPixel/s

40.00 GTexel/s

Texture Rate

33.86 GTexel/s

-

1280 GFLOPS

FP32 (float)

812.5 GFLOPS

80.00 GFLOPS

FP64 (double)

33.86 GFLOPS

Board Design

80W

TDP

65W

250 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x mini-HDMI 1.4a

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Cape Verde

GPU Name

GK107

Cape Verde XT

GPU Variant

GK107-450-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

1.27 billion

123 mm²

Die Size

118 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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