NVIDIA GeForce GT 645 OEM vs AMD Radeon R7 260

VS

NVIDIA GeForce GT 645 OEM

AMD Radeon R7 260

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

Main Differences

AMD Radeon R7 260 's Advantages

Released 1 years and 8 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (96.00GB/s vs 91.87GB/s)

480 additional rendering cores

Lower TDP (95W vs 102W)

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM

0.894 TFLOPS

Radeon R7 260 +71%

1.536 TFLOPS

GeForce GT 645 OEM

VS

Radeon R7 260

Graphics Card

Apr 2012

Release Date

Dec 2013

GeForce 600

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

957 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

91.87GB/s

Bandwidth

96.00GB/s

Render Config

-

Compute Units

12

6

SM Count

-

288

Shading Units

768

48

TMUs

48

24

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

16.00 GPixel/s

37.25 GTexel/s

Texture Rate

48.00 GTexel/s

-

894.0 GFLOPS

FP32 (float)

1.536 TFLOPS

74.50 GFLOPS

FP64 (double)

96.00 GFLOPS

Board Design

102W

TDP

95W

300 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

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

-

Power Connectors

1x 6-pin

Graphics Processor

GF114

GPU Name

Bonaire

-

GPU Variant

Bonaire PRO

Fermi 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.95 billion

Transistors

2.08 billion

332 mm²

Die Size

160 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.1

OpenCL

2.0

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

6.3

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