AMD Radeon HD 6870 X2 vs NVIDIA GeForce GTX 650 Ti OEM

VS

AMD Radeon HD 6870 X2

NVIDIA GeForce GTX 650 Ti OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 2GB VRAM GeForce GTX 650 Ti 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

Larger VRAM bandwidth (134.4GB/s vs 86.40GB/s)

352 additional rendering cores

NVIDIA GeForce GTX 650 Ti OEM 's Advantages

Released 1 years and 8 months late

More VRAM (2GB vs 1024GB)

Lower TDP (110W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2 +41%

2.016 TFLOPS

GeForce GTX 650 Ti OEM

1.425 TFLOPS

Radeon HD 6870 X2

VS

GeForce GTX 650 Ti OEM

Graphics Card

Jul 2011

Release Date

Mar 2013

Northern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

1350 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

86.40GB/s

Render Config

14

Compute Units

-

1120

Shading Units

768

56

TMUs

64

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

14.85 GPixel/s

50.40 GTexel/s

Texture Rate

59.39 GTexel/s

-

2.016 TFLOPS

FP32 (float)

1425 GFLOPS

-

FP64 (double)

59.39 GFLOPS

Board Design

300W

TDP

110W

700 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x mini-HDMI 1.4a

-

Power Connectors

1x 6-pin

Graphics Processor

Barts

GPU Name

GK106

Barts XT (215-0798000)

GPU Variant

-

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

2.54 billion

255 mm²

Die Size

221 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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