NVIDIA GeForce GT 340 OEM vs AMD Radeon HD 7990

VS

NVIDIA GeForce GT 340 OEM

AMD Radeon HD 7990

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 340 OEM and 3GB VRAM Radeon HD 7990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 340 OEM 's Advantages

Lower TDP (69W vs 375W)

AMD Radeon HD 7990 's Advantages

Released 3 years and 2 months late

Boost Clock1000MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 27.20GB/s)

1952 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 340 OEM

0.257 TFLOPS

Radeon HD 7990 +1493%

4.096 TFLOPS

GeForce GT 340 OEM

VS

Radeon HD 7990

Graphics Card

Feb 2010

Release Date

Apr 2013

GeForce 300

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

950 MHz

-

Boost Clock

1000 MHz

850 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

384bit

27.20GB/s

Bandwidth

288.0GB/s

Render Config

-

Compute Units

32

12

SM Count

-

96

Shading Units

2048

32

TMUs

128

8

ROPs

32

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

768 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

32.00 GPixel/s

17.60 GTexel/s

Texture Rate

128.0 GTexel/s

-

257.3 GFLOPS

FP32 (float)

4.096 TFLOPS

-

FP64 (double)

1024 GFLOPS

Board Design

69W

TDP

375W

250 W

Suggested PSU

750 W

1x DVI 1x HDMI 1x VGA

Outputs

1x DVI 4x mini-DisplayPort 1.2

None

Power Connectors

2x 8-pin

Graphics Processor

GT215

GPU Name

Malta

GT215-301-A3

GPU Variant

Malta XT (215-0849026)

Tesla 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.727 billion

Transistors

4.313 billion

144 mm²

Die Size

365 mm²

Graphics Features

11.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

CUDA

-

4.1

Shader Model

5.1

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