AMD Radeon HD 7990 vs NVIDIA GeForce GTX 750

VS

AMD Radeon HD 7990

NVIDIA GeForce GTX 750

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 1024MB VRAM GeForce GTX 750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7990 's Advantages

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 80.19GB/s)

1536 additional rendering cores

NVIDIA GeForce GTX 750 's Advantages

Released 10 months late

Boost Clock has increased by 8% (1085MHz vs 1000MHz)

Lower TDP (55W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990 +268%

4.096 TFLOPS

GeForce GTX 750

1.111 TFLOPS

Radeon HD 7990

VS

GeForce GTX 750

Graphics Card

Apr 2013

Release Date

Feb 2014

Southern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

950 MHz

Base Clock

1020 MHz

1000 MHz

Boost Clock

1085 MHz

1500 MHz

Memory Clock

1253 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

80.19GB/s

Render Config

32

Compute Units

-

2048

Shading Units

512

128

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

768 KB

L2 Cache

2 MB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

17.36 GPixel/s

128.0 GTexel/s

Texture Rate

34.72 GTexel/s

-

4.096 TFLOPS

FP32 (float)

1111 GFLOPS

1024 GFLOPS

FP64 (double)

34.72 GFLOPS

Board Design

375W

TDP

55W

750 W

Suggested PSU

250 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

2x DVI 1x mini-HDMI 2.0

2x 8-pin

Power Connectors

None

Graphics Processor

Malta

GPU Name

GM107

Malta XT (215-0849026)

GPU Variant

GM107-300-A2

GCN 1.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

1.87 billion

365 mm²

Die Size

148 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.0

5.1

Shader Model

5.1

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