ATI Radeon HD 5850 vs NVIDIA GeForce GT 645 OEM

VS

ATI Radeon HD 5850

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5850 and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5850 's Advantages

Larger VRAM bandwidth (128.0GB/s vs 91.87GB/s)

1152 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Released 2 years and 7 months late

Lower TDP (102W vs 151W)

Score

Benchmark

FP32 (float)

Radeon HD 5850 +133%

2.088 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

Radeon HD 5850

VS

GeForce GT 645 OEM

Graphics Card

Sep 2009

Release Date

Apr 2012

Evergreen

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

957 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

128.0GB/s

Bandwidth

91.87GB/s

Render Config

18

Compute Units

-

SM Count

6

1440

Shading Units

288

72

TMUs

48

32

ROPs

24

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

9.312 GPixel/s

52.20 GTexel/s

Texture Rate

37.25 GTexel/s

-

2.088 TFLOPS

FP32 (float)

894.0 GFLOPS

417.6 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

151W

TDP

102W

450 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x mini-HDMI 1.3a

2x 6-pin

Power Connectors

-

Graphics Processor

Cypress

GPU Name

GF114

Cypress PRO (215-0735043)

GPU Variant

-

TeraScale 2

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.154 billion

Transistors

1.95 billion

334 mm²

Die Size

332 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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