AMD Radeon RX 7900 GRE vs NVIDIA GeForce GTX 660 Ti

VS

AMD Radeon RX 7900 GRE NVIDIA GeForce GTX 660 Ti

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7900 GRE and 2GB VRAM GeForce GTX 660 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 GRE 's Advantages

Released 10 years and 11 months late

Boost Clock has increased by 129% (2245MHz vs 980MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 144.2GB/s)

3776 additional rendering cores

NVIDIA GeForce GTX 660 Ti 's Advantages

Lower TDP (150W vs 260W)

Score

Benchmark

FP32 (float)

Radeon RX 7900 GRE +1645%

45.98 TFLOPS

GeForce GTX 660 Ti

2.634 TFLOPS

3DMark Time Spy

Radeon RX 7900 GRE +1268%

22258

GeForce GTX 660 Ti

1627

Radeon RX 7900 GRE

VS

GeForce GTX 660 Ti

Graphics Card

Jul 2023

Release Date

Aug 2012

Navi III

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1287 MHz

Base Clock

915 MHz

2245 MHz

Boost Clock

980 MHz

2250 MHz

Memory Clock

1502 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

192bit

576.0GB/s

Bandwidth

144.2GB/s

Render Config

-

SM Count

-

80

Compute Units

-

5120

Shading Units

1344

320

TMUs

112

160

ROPs

24

-

Tensor Cores

-

80

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per SMX)

6 MB

L2 Cache

384 KB

Theoretical Performance

359.2 GPixel/s

Pixel Rate

27.44 GPixel/s

718.4 GTexel/s

Texture Rate

109.8 GTexel/s

91.96 TFLOPS

FP16 (half)

-

45.98 TFLOPS

FP32 (float)

2.634 TFLOPS

1437 GFLOPS

FP64 (double)

109.8 GFLOPS

Graphics Processor

Navi 31

GPU Name

GK104

Navi 31 XL

GPU Variant

GK104-300-KD-A2

RDNA 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

57.7 billion

Transistors

3.54 billion

529 mm²

Die Size

294 mm²

Board Design

260W

TDP

150W

600 W

Suggested PSU

450 W

1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C

Outputs

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

2x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.1

-

CUDA

3.0

6.7

Shader Model

5.1

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