AMD Radeon HD 6990 vs NVIDIA GeForce GTX 275

VS

AMD Radeon HD 6990 NVIDIA GeForce GTX 275

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 896MB VRAM GeForce GTX 275 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990 's Advantages

Released 2 years and 2 months late

Larger VRAM bandwidth (160.0GB/s vs 127.0GB/s)

1296 additional rendering cores

NVIDIA GeForce GTX 275 's Advantages

Lower TDP (219W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990 +278%

2.55 TFLOPS

GeForce GTX 275

0.674 TFLOPS

Radeon HD 6990

VS

GeForce GTX 275

Graphics Card

Mar 2011

Release Date

Jan 2009

Northern Islands

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

1134 MHz

Memory

2GB

Memory Size

896MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

448bit

160.0GB/s

Bandwidth

127.0GB/s

Render Config

-

SM Count

30

24

Compute Units

-

1536

Shading Units

240

96

TMUs

80

32

ROPs

28

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

224 KB

Theoretical Performance

26.56 GPixel/s

Pixel Rate

17.72 GPixel/s

79.68 GTexel/s

Texture Rate

50.64 GTexel/s

-

FP16 (half)

-

2.550 TFLOPS

FP32 (float)

673.9 GFLOPS

637.4 GFLOPS

FP64 (double)

84.24 GFLOPS

Graphics Processor

Antilles

GPU Name

GT200B

Antilles XT (215-0807027)

GPU Variant

G200-105-B3

TeraScale 3

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.64 billion

Transistors

1.4 billion

389 mm²

Die Size

470 mm²

Board Design

375W

TDP

219W

750 W

Suggested PSU

550 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

2x DVI

2x 8-pin

Power Connectors

2x 6-pin

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.3

5.0

Shader Model

4.0

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