AMD Radeon Sky 900 vs NVIDIA GeForce GTX 680

VS

AMD Radeon Sky 900 NVIDIA GeForce GTX 680

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 and 2GB VRAM GeForce GTX 680 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 900 's Advantages

Released 1 years late

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (240.0GB/s vs 192.3GB/s)

256 additional rendering cores

NVIDIA GeForce GTX 680 's Advantages

Boost Clock has increased by 11% (1058MHz vs 950MHz)

Lower TDP (195W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Sky 900 +4%

3.405 TFLOPS

GeForce GTX 680

3.25 TFLOPS

Radeon Sky 900

VS

GeForce GTX 680

Graphics Card

Mar 2013

Release Date

Mar 2012

Radeon Sky

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

825 MHz

Base Clock

1006 MHz

950 MHz

Boost Clock

1058 MHz

1250 MHz

Memory Clock

1502 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

192.3GB/s

Render Config

-

SM Count

-

28

Compute Units

-

1792

Shading Units

1536

112

TMUs

128

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

512 KB

Theoretical Performance

30.40 GPixel/s

Pixel Rate

33.86 GPixel/s

106.4 GTexel/s

Texture Rate

135.4 GTexel/s

-

FP16 (half)

-

3.405 TFLOPS

FP32 (float)

3.250 TFLOPS

851.2 GFLOPS

FP64 (double)

135.4 GFLOPS

Graphics Processor

Tahiti

GPU Name

GK104

Orthrus

GPU Variant

GK104-400-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

3.54 billion

352 mm²

Die Size

294 mm²

Board Design

300W

TDP

195W

700 W

Suggested PSU

450 W

1x DVI 1x mini-DisplayPort 1.2

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

2x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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