AMD Radeon HD 7770 GHz Edition vs NVIDIA GeForce GTX 260 OEM

VS

AMD Radeon HD 7770 GHz Edition

NVIDIA GeForce GTX 260 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 1792MB VRAM GeForce GTX 260 OEM 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

Released 2 years and 2 months late

448 additional rendering cores

Lower TDP (80W vs 182W)

NVIDIA GeForce GTX 260 OEM 's Advantages

More VRAM (1792GB vs 1024GB)

Larger VRAM bandwidth (112.9GB/s vs 72.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition +208%

1.28 TFLOPS

GeForce GTX 260 OEM

0.415 TFLOPS

Radeon HD 7770 GHz Edition

VS

GeForce GTX 260 OEM

Graphics Card

Feb 2012

Release Date

Dec 2009

Southern Islands

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

1008 MHz

Memory

1024MB

Memory Size

1792MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

448bit

72.00GB/s

Bandwidth

112.9GB/s

Render Config

10

Compute Units

-

SM Count

24

640

Shading Units

192

40

TMUs

64

16

ROPs

28

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

224 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

14.50 GPixel/s

40.00 GTexel/s

Texture Rate

33.15 GTexel/s

-

1280 GFLOPS

FP32 (float)

414.7 GFLOPS

80.00 GFLOPS

FP64 (double)

51.84 GFLOPS

Board Design

80W

TDP

182W

250 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Cape Verde

GPU Name

GT200B

Cape Verde XT

GPU Variant

G200-103-B2

GCN 1.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.5 billion

Transistors

1.4 billion

123 mm²

Die Size

470 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.3

5.1

Shader Model

4.0

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