NVIDIA GeForce GTX 650 vs AMD Radeon HD 6870 X2

VS

NVIDIA GeForce GTX 650

AMD Radeon HD 6870 X2

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 650 and 1024MB VRAM Radeon HD 6870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 650 's Advantages

Released 1 years and 2 months late

Lower TDP (65W vs 300W)

AMD Radeon HD 6870 X2 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 80.00GB/s)

736 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 650

0.812 TFLOPS

Radeon HD 6870 X2 +148%

2.016 TFLOPS

GeForce GTX 650

VS

Radeon HD 6870 X2

Graphics Card

Sep 2012

Release Date

Jul 2011

GeForce 600

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

1050 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

80.00GB/s

Bandwidth

134.4GB/s

Render Config

-

Compute Units

14

-

384

Shading Units

1120

32

TMUs

56

16

ROPs

32

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

8.464 GPixel/s

Pixel Rate

28.80 GPixel/s

33.86 GTexel/s

Texture Rate

50.40 GTexel/s

-

812.5 GFLOPS

FP32 (float)

2.016 TFLOPS

33.86 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

300W

250 W

Suggested PSU

700 W

2x DVI 1x mini-HDMI 1.4a

Outputs

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

1x 6-pin

Power Connectors

-

Graphics Processor

GK107

GPU Name

Barts

GK107-450-A2

GPU Variant

Barts XT (215-0798000)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

1.7 billion

118 mm²

Die Size

255 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

5.0

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