AMD Radeon R9 255 OEM vs NVIDIA GeForce GT 630 Rev. 2

VS

AMD Radeon R9 255 OEM

NVIDIA GeForce GT 630 Rev. 2

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 255 OEM and 2GB VRAM GeForce GT 630 Rev. 2 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 7 months late

Boost Clock930MHz

Larger VRAM bandwidth (73.60GB/s vs 14.40GB/s)

128 additional rendering cores

NVIDIA GeForce GT 630 Rev. 2 's Advantages

Lower TDP (25W vs 65W)

Score

Benchmark

FP32 (float)

Radeon R9 255 OEM +37%

0.952 TFLOPS

GeForce GT 630 Rev. 2

0.693 TFLOPS

Radeon R9 255 OEM

VS

GeForce GT 630 Rev. 2

Graphics Card

Dec 2013

Release Date

May 2013

Volcanic Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

900 MHz

Base Clock

-

930 MHz

Boost Clock

-

1150 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

73.60GB/s

Bandwidth

14.40GB/s

Render Config

8

Compute Units

-

512

Shading Units

384

32

TMUs

32

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

14.88 GPixel/s

Pixel Rate

7.216 GPixel/s

29.76 GTexel/s

Texture Rate

28.86 GTexel/s

-

952.3 GFLOPS

FP32 (float)

692.7 GFLOPS

59.52 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

65W

TDP

25W

250 W

Suggested PSU

200 W

No outputs

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Cape Verde

GPU Name

GK208

Cape Verde PRX

GPU Variant

GK208-301-A1

GCN 1.0

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

1.02 billion

123 mm²

Die Size

87 mm²

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

3.5

5.1

Shader Model

5.1

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