NVIDIA GeForce GTX 275 vs AMD Radeon HD 6850

VS

NVIDIA GeForce GTX 275

AMD Radeon HD 6850

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 and 1024MB VRAM Radeon HD 6850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 's Advantages

Released 1 years and 9 months late

More VRAM (1024GB vs 896GB)

Larger VRAM bandwidth (128.0GB/s vs 127.0GB/s)

720 additional rendering cores

Lower TDP (127W vs 219W)

Score

Benchmark

FP32 (float)

GeForce GTX 275

0.674 TFLOPS

Radeon HD 6850 +120%

1.488 TFLOPS

GeForce GTX 275

VS

Radeon HD 6850

Graphics Card

Jan 2009

Release Date

Oct 2010

GeForce 200

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1134 MHz

Memory Clock

1000 MHz

Memory

896MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

448bit

Memory Bus

256bit

127.0GB/s

Bandwidth

128.0GB/s

Render Config

-

Compute Units

12

30

SM Count

-

240

Shading Units

960

80

TMUs

48

28

ROPs

32

-

L1 Cache

8 KB (per CU)

224 KB

L2 Cache

512 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

24.80 GPixel/s

50.64 GTexel/s

Texture Rate

37.20 GTexel/s

-

673.9 GFLOPS

FP32 (float)

1488 GFLOPS

84.24 GFLOPS

FP64 (double)

-

Board Design

219W

TDP

127W

550 W

Suggested PSU

300 W

2x DVI

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

GT200B

GPU Name

Barts

G200-105-B3

GPU Variant

Barts PRO (215-0798006)

Tesla 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

1.4 billion

Transistors

1.7 billion

470 mm²

Die Size

255 mm²

Graphics Features

11.1 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

1.3

CUDA

-

4.0

Shader Model

5.0

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