AMD Radeon R9 255 OEM vs NVIDIA GeForce GTX 460 SE v2

VS

AMD Radeon R9 255 OEM

NVIDIA GeForce GTX 460 SE v2

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 255 OEM and 768MB VRAM GeForce GTX 460 SE v2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 255 OEM 's Advantages

Released 3 years and 1 months late

Boost Clock930MHz

More VRAM (2GB vs 768GB)

224 additional rendering cores

Lower TDP (65W vs 150W)

NVIDIA GeForce GTX 460 SE v2 's Advantages

Larger VRAM bandwidth (81.60GB/s vs 73.60GB/s)

Score

Benchmark

FP32 (float)

Radeon R9 255 OEM +27%

0.952 TFLOPS

GeForce GTX 460 SE v2

0.749 TFLOPS

Radeon R9 255 OEM

VS

GeForce GTX 460 SE v2

Graphics Card

Dec 2013

Release Date

Nov 2010

Volcanic Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

930 MHz

Boost Clock

-

1150 MHz

Memory Clock

850 MHz

Memory

2GB

Memory Size

768MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

192bit

73.60GB/s

Bandwidth

81.60GB/s

Render Config

8

Compute Units

-

SM Count

6

512

Shading Units

288

32

TMUs

48

16

ROPs

24

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

14.88 GPixel/s

Pixel Rate

7.800 GPixel/s

29.76 GTexel/s

Texture Rate

31.20 GTexel/s

-

952.3 GFLOPS

FP32 (float)

748.8 GFLOPS

59.52 GFLOPS

FP64 (double)

62.40 GFLOPS

Board Design

65W

TDP

150W

250 W

Suggested PSU

450 W

No outputs

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Cape Verde

GPU Name

GF114

Cape Verde PRX

GPU Variant

GF114-400-A1

GCN 1.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

1.95 billion

123 mm²

Die Size

332 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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