NVIDIA GeForce GTX 645 OEM vs AMD Radeon R7 260X

VS

NVIDIA GeForce GTX 645 OEM

AMD Radeon R7 260X

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 2GB VRAM Radeon R7 260X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 115W)

AMD Radeon R7 260X 's Advantages

Released 6 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (104.0GB/s vs 64.00GB/s)

320 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM

0.949 TFLOPS

Radeon R7 260X +107%

1.971 TFLOPS

GeForce GTX 645 OEM

VS

Radeon R7 260X

Graphics Card

Apr 2013

Release Date

Oct 2013

GeForce 600

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1625 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

104.0GB/s

Render Config

-

Compute Units

14

-

576

Shading Units

896

48

TMUs

56

16

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

17.60 GPixel/s

39.55 GTexel/s

Texture Rate

61.60 GTexel/s

-

949.2 GFLOPS

FP32 (float)

1.971 TFLOPS

39.55 GFLOPS

FP64 (double)

123.2 GFLOPS

Board Design

65W

TDP

115W

250 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

GK106

GPU Name

Bonaire

GK106-200-A1

GPU Variant

Bonaire XTX (215-0839097)

Kepler

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.54 billion

Transistors

2.08 billion

221 mm²

Die Size

160 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

6.3

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