NVIDIA GeForce GTX 275 vs AMD Radeon HD 7970 X2

VS

NVIDIA GeForce GTX 275

AMD Radeon HD 7970 X2

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 and 3GB VRAM Radeon HD 7970 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 275 's Advantages

Lower TDP (219W vs 500W)

AMD Radeon HD 7970 X2 's Advantages

Released 3 years and 7 months late

More VRAM (3GB vs 896GB)

Larger VRAM bandwidth (264.0GB/s vs 127.0GB/s)

1808 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 275

0.674 TFLOPS

Radeon HD 7970 X2 +462%

3.789 TFLOPS

GeForce GTX 275

VS

Radeon HD 7970 X2

Graphics Card

Jan 2009

Release Date

Aug 2012

GeForce 200

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1134 MHz

Memory Clock

1375 MHz

Memory

896MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

448bit

Memory Bus

384bit

127.0GB/s

Bandwidth

264.0GB/s

Render Config

-

Compute Units

32

30

SM Count

-

240

Shading Units

2048

80

TMUs

128

28

ROPs

32

-

L1 Cache

16 KB (per CU)

224 KB

L2 Cache

768 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

29.60 GPixel/s

50.64 GTexel/s

Texture Rate

118.4 GTexel/s

-

673.9 GFLOPS

FP32 (float)

3.789 TFLOPS

84.24 GFLOPS

FP64 (double)

947.2 GFLOPS

Board Design

219W

TDP

500W

550 W

Suggested PSU

900 W

2x DVI

Outputs

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

2x 6-pin

Power Connectors

3x 8-pin

Graphics Processor

GT200B

GPU Name

New Zealand

G200-105-B3

GPU Variant

-

Tesla 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

1.4 billion

Transistors

4.313 billion

470 mm²

Die Size

352 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

1.3

CUDA

-

4.0

Shader Model

5.1

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