AMD Radeon HD 6770 vs NVIDIA GeForce GTX 260

VS

AMD Radeon HD 6770

NVIDIA GeForce GTX 260

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6770 and 896MB VRAM GeForce GTX 260 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6770 's Advantages

Released 2 years and 7 months late

More VRAM (1024GB vs 896GB)

608 additional rendering cores

Lower TDP (108W vs 182W)

NVIDIA GeForce GTX 260 's Advantages

Larger VRAM bandwidth (111.9GB/s vs 76.80GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6770 +185%

1.36 TFLOPS

GeForce GTX 260

0.477 TFLOPS

Radeon HD 6770

VS

GeForce GTX 260

Graphics Card

Jan 2011

Release Date

Jun 2008

Northern Islands

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

999 MHz

Memory

1024MB

Memory Size

896MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

448bit

76.80GB/s

Bandwidth

111.9GB/s

Render Config

10

Compute Units

-

SM Count

24

800

Shading Units

192

40

TMUs

64

16

ROPs

28

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

224 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

16.13 GPixel/s

34.00 GTexel/s

Texture Rate

36.86 GTexel/s

-

1360 GFLOPS

FP32 (float)

476.9 GFLOPS

-

FP64 (double)

59.62 GFLOPS

Board Design

108W

TDP

182W

300 W

Suggested PSU

450 W

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Juniper

GPU Name

GT200

Juniper XT (215-0754013)

GPU Variant

G200-100-A2

TeraScale 2

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

1.04 billion

Transistors

1.4 billion

166 mm²

Die Size

576 mm²

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.3

5.0

Shader Model

4.0

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