AMD Radeon HD 6790 vs NVIDIA GeForce 8600 GT

VS

AMD Radeon HD 6790

NVIDIA GeForce 8600 GT

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6790 and 512MB VRAM GeForce 8600 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6790 's Advantages

Released 4 years late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 22.40GB/s)

768 additional rendering cores

NVIDIA GeForce 8600 GT 's Advantages

Lower TDP (47W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 6790 +1668%

1.344 TFLOPS

GeForce 8600 GT

0.076 TFLOPS

Radeon HD 6790

VS

GeForce 8600 GT

Graphics Card

Apr 2011

Release Date

Apr 2007

Northern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

700 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

22.40GB/s

Render Config

10

Compute Units

-

SM Count

4

800

Shading Units

32

40

TMUs

16

ROPs

8

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

32 KB

-

Theoretical Performance

13.44 GPixel/s

Pixel Rate

4.320 GPixel/s

33.60 GTexel/s

Texture Rate

8.640 GTexel/s

-

1344 GFLOPS

FP32 (float)

76.16 GFLOPS

-

Board Design

150W

TDP

47W

450 W

Suggested PSU

200 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

G84

Barts LE (215-0798002)

GPU Variant

G84-303-A2

TeraScale 2

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.7 billion

Transistors

0.289 billion

255 mm²

Die Size

169 mm²

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

5.0

Shader Model

4.0

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