AMD Radeon HD 6870 X2 vs NVIDIA GeForce GTX 260 OEM

VS

AMD Radeon HD 6870 X2 NVIDIA GeForce GTX 260 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 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 6870 X2 's Advantages

Released 1 years and 7 months late

Larger VRAM bandwidth (134.4GB/s vs 112.9GB/s)

928 additional rendering cores

NVIDIA GeForce GTX 260 OEM 's Advantages

More VRAM (1792GB vs 1024GB)

Lower TDP (182W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2 +385%

2.016 TFLOPS

GeForce GTX 260 OEM

0.415 TFLOPS

Radeon HD 6870 X2

VS

GeForce GTX 260 OEM

Graphics Card

Jul 2011

Release Date

Dec 2009

Northern Islands

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1050 MHz

Memory Clock

1008 MHz

Memory

1024MB

Memory Size

1792MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

448bit

134.4GB/s

Bandwidth

112.9GB/s

Render Config

-

SM Count

24

14

Compute Units

-

1120

Shading Units

192

56

TMUs

64

32

ROPs

28

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

224 KB

Theoretical Performance

28.80 GPixel/s

Pixel Rate

14.50 GPixel/s

50.40 GTexel/s

Texture Rate

33.15 GTexel/s

-

FP16 (half)

-

2.016 TFLOPS

FP32 (float)

414.7 GFLOPS

-

FP64 (double)

51.84 GFLOPS

Graphics Processor

Barts

GPU Name

GT200B

Barts XT (215-0798000)

GPU Variant

G200-103-B2

TeraScale 2

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

1.4 billion

255 mm²

Die Size

470 mm²

Board Design

300W

TDP

182W

700 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

-

Power Connectors

2x 6-pin

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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