Product Compare

AMD Radeon RX 7900 GRE vs NVIDIA GeForce GTX 660 Ti

GPU GPU
Graphics Card
Release Date Jul 2023 Aug 2012
Generation Navi III GeForce 600
Type Desktop Desktop
Bus Interface PCIe 4.0 x16 PCIe 3.0 x16
Clock Speeds
Base Clock 1287 MHz 915 MHz
Boost Clock 2245 MHz 980 MHz
Memory Clock 2250 MHz 1502 MHz
Memory
Memory Size 16GB 2GB
Memory Type GDDR6 GDDR5
Memory Bus 256bit 192bit
Bandwidth 576.0GB/s 144.2GB/s
Render Config
Compute Units 80
Shading Units 5120 1344
TMUs 320 112
ROPs 160 24
RT Cores 80
L1 Cache 256 KB per Array 16 KB (per SMX)
L2 Cache 6 MB 384 KB
L3 Cache 64 MB
Theoretical Performance
Pixel Rate 359.2 GPixel/s 27.44 GPixel/s
Texture Rate 718.4 GTexel/s 109.8 GTexel/s
FP16 (half) 91.96 TFLOPS
FP32 (float) 45.98 TFLOPS 2.634 TFLOPS
FP64 (double) 1436.8 GFLOPS 109.8 GFLOPS
Graphics Processor
GPU Name Navi 31 GK104
GPU Variant Navi 31 XL(215-145000206) GK104-300-KD-A2
Architecture RDNA 3.0 Kepler
Foundry TSMC TSMC
Process Size 5 nm 28 nm
Transistors 57.7 billion 3.54 billion
Die Size 529 mm² 294 mm²
Board Design
TDP 260W 150W
Suggested PSU 600 W 450 W
Outputs 1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C 2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors 2x 8-pin 2x 6-pin
Graphics Features
DirectX 12 Ultimate (12_2) 12 (11_0)
OpenGL 4.6 4.6
OpenCL 2.2 3.0
Vulkan 1.3 1.1
Shader Model 6.8 5.1
CUDA 3.0