NVIDIA GeForce GTX 645 OEM vs AMD Radeon HD 8470 OEM

VS

NVIDIA GeForce GTX 645 OEM

AMD Radeon HD 8470 OEM

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 1024MB VRAM Radeon HD 8470 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 25.60GB/s)

416 additional rendering cores

AMD Radeon HD 8470 OEM 's Advantages

Lower TDP (35W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM +282%

0.949 TFLOPS

Radeon HD 8470 OEM

0.248 TFLOPS

GeForce GTX 645 OEM

VS

Radeon HD 8470 OEM

Graphics Card

Apr 2013

Release Date

Jan 2013

GeForce 600

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

2

-

576

Shading Units

160

48

TMUs

8

16

ROPs

4

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

3.100 GPixel/s

39.55 GTexel/s

Texture Rate

6.200 GTexel/s

-

949.2 GFLOPS

FP32 (float)

248.0 GFLOPS

39.55 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

35W

250 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a

None

Power Connectors

None

Graphics Processor

GK106

GPU Name

Caicos

GK106-200-A1

GPU Variant

Caicos XT (215-0804070)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.54 billion

Transistors

0.37 billion

221 mm²

Die Size

67 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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