AMD Radeon R9 295X2 vs NVIDIA GeForce GTX 660 OEM

VS

AMD Radeon R9 295X2

NVIDIA GeForce GTX 660 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 295X2 and 1536MB VRAM GeForce GTX 660 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 295X2 's Advantages

Released 1 years and 8 months late

More VRAM (4GB vs 1536GB)

Larger VRAM bandwidth (320.0GB/s vs 134.4GB/s)

1664 additional rendering cores

NVIDIA GeForce GTX 660 OEM 's Advantages

Boost Clock888MHz

Lower TDP (130W vs 500W)

Score

Benchmark

FP32 (float)

Radeon R9 295X2 +180%

5.733 TFLOPS

GeForce GTX 660 OEM

2.046 TFLOPS

Radeon R9 295X2

VS

GeForce GTX 660 OEM

Graphics Card

Apr 2014

Release Date

Aug 2012

Volcanic Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

823 MHz

-

Boost Clock

888 MHz

1250 MHz

Memory Clock

1400 MHz

Memory

4GB

Memory Size

1536MB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

192bit

320.0GB/s

Bandwidth

134.4GB/s

Render Config

44

Compute Units

-

2816

Shading Units

1152

176

TMUs

96

64

ROPs

24

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

384 KB

-

Theoretical Performance

65.15 GPixel/s

Pixel Rate

21.31 GPixel/s

179.2 GTexel/s

Texture Rate

85.25 GTexel/s

-

5.733 TFLOPS

FP32 (float)

2.046 TFLOPS

716.7 GFLOPS

FP64 (double)

85.25 GFLOPS

Board Design

500W

TDP

130W

900 W

Suggested PSU

300 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Vesuvius

GPU Name

GK104

Vesuvius XT (215-0852022)

GPU Variant

GK104-200-KD-A2

GCN 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

3.54 billion

438 mm²

Die Size

294 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

6.3

Shader Model

5.1

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