AMD Radeon HD 6790 vs AMD Radeon HD 6850

VS

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6790 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 6790 's Advantages

Released 6 months late

Larger VRAM bandwidth (134.4GB/s vs 128.0GB/s)

AMD Radeon HD 6850 's Advantages

160 additional rendering cores

Lower TDP (127W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 6790

1.344 TFLOPS

Radeon HD 6850 +10%

1.488 TFLOPS

Radeon HD 6790

VS

Radeon HD 6850

Graphics Card

Apr 2011

Release Date

Oct 2010

Northern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1050 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

128.0GB/s

Render Config

-

SM Count

-

10

Compute Units

12

800

Shading Units

960

40

TMUs

48

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

Theoretical Performance

13.44 GPixel/s

Pixel Rate

24.80 GPixel/s

33.60 GTexel/s

Texture Rate

37.20 GTexel/s

-

FP16 (half)

-

1344 GFLOPS

FP32 (float)

1488 GFLOPS

-

FP64 (double)

-

Graphics Processor

Barts

GPU Name

Barts

Barts LE (215-0798002)

GPU Variant

Barts PRO (215-0798006)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

1.7 billion

255 mm²

Die Size

255 mm²

Board Design

150W

TDP

127W

450 W

Suggested PSU

300 W

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

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

5.0

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