AMD Radeon HD 6850 vs NVIDIA GeForce GT 420 OEM

VS

AMD Radeon HD 6850

NVIDIA GeForce GT 420 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 and 1024MB VRAM GeForce GT 420 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 's Advantages

Larger VRAM bandwidth (128.0GB/s vs 28.80GB/s)

912 additional rendering cores

NVIDIA GeForce GT 420 OEM 's Advantages

Lower TDP (50W vs 127W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 +1010%

1.488 TFLOPS

GeForce GT 420 OEM

0.134 TFLOPS

Radeon HD 6850

VS

GeForce GT 420 OEM

Graphics Card

Oct 2010

Release Date

Sep 2010

Northern Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

128.0GB/s

Bandwidth

28.80GB/s

Render Config

12

Compute Units

-

SM Count

1

960

Shading Units

48

TMUs

4

32

ROPs

4

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

24.80 GPixel/s

Pixel Rate

1.400 GPixel/s

37.20 GTexel/s

Texture Rate

2.800 GTexel/s

-

1488 GFLOPS

FP32 (float)

134.4 GFLOPS

-

FP64 (double)

11.20 GFLOPS

Board Design

127W

TDP

50W

300 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

GF108

Barts PRO (215-0798006)

GPU Variant

GF108-200-A1

TeraScale 2

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.585 billion

255 mm²

Die Size

116 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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