AMD Radeon HD 7870 XT vs NVIDIA GeForce GT 630 OEM

VS

AMD Radeon HD 7870 XT

NVIDIA GeForce GT 630 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 1024MB VRAM GeForce GT 630 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 XT 's Advantages

Released 7 months late

Boost Clock975MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (192.0GB/s vs 28.51GB/s)

1344 additional rendering cores

NVIDIA GeForce GT 630 OEM 's Advantages

Lower TDP (50W vs 185W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT +791%

2.995 TFLOPS

GeForce GT 630 OEM

0.336 TFLOPS

Radeon HD 7870 XT

VS

GeForce GT 630 OEM

Graphics Card

Nov 2012

Release Date

Apr 2012

Southern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

1500 MHz

Memory Clock

891 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

192.0GB/s

Bandwidth

28.51GB/s

Render Config

24

Compute Units

-

1536

Shading Units

192

96

TMUs

16

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

3.500 GPixel/s

93.60 GTexel/s

Texture Rate

14.00 GTexel/s

-

2.995 TFLOPS

FP32 (float)

336.0 GFLOPS

748.8 GFLOPS

FP64 (double)

14.00 GFLOPS

Board Design

185W

TDP

50W

450 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

GK107

Tahiti LE (215-0821122)

GPU Variant

GK107-301-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

1.27 billion

352 mm²

Die Size

118 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

3.0

5.1

Shader Model

5.1

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