AMD Radeon RX 6600 XT vs NVIDIA GeForce 256 SDR
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 XT and 32MB VRAM GeForce 256 SDR to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6600 XT 's Advantages
Released 21 years and 9 months late
Boost Clock2589MHz
More VRAM (8GB vs 32GB)
Larger VRAM bandwidth (256.0GB/s vs 1.144GB/s)
2048 additional rendering cores
Score
Graphics Card
Jul 2021
Release Date
Oct 1999
Navi II
Generation
GeForce 256
Desktop
Type
Desktop
PCIe 4.0 x8
Bus Interface
AGP 4x
Clock Speeds
1968 MHz
Base Clock
-
2589 MHz
Boost Clock
-
2000 MHz
Memory Clock
143 MHz
Memory
8GB
Memory Size
32MB
GDDR6
Memory Type
SDR
128bit
Memory Bus
64bit
256.0GB/s
Bandwidth
1.144GB/s
Render Config
32
Compute Units
-
-
-
-
2048
Shading Units
-
128
TMUs
4
64
ROPs
4
-
-
-
32
RT Cores
-
128 KB per Array
L1 Cache
-
2 MB
L2 Cache
-
32 MB
L3 Cache
-
Theoretical Performance
165.7 GPixel/s
Pixel Rate
480.0 MPixel/s
331.4 GTexel/s
Texture Rate
480.0 MTexel/s
21.21 TFLOPS
FP16 (half)
-
10.60 TFLOPS
FP32 (float)
-
662.8 GFLOPS
FP64 (double)
-
Board Design
160W
TDP
Unknown
450 W
Suggested PSU
200 W
1x HDMI 2.1
3x DisplayPort 1.4a
Outputs
1x VGA
1x 8-pin
Power Connectors
None
Graphics Processor
Navi 23
GPU Name
NV10
Navi 23 XT
(215-130000006)
GPU Variant
-
RDNA 2.0
Architecture
Celsius
TSMC
Foundry
TSMC
7 nm
Process Size
220 nm
11.06 billion
Transistors
0.017 billion
237 mm²
Die Size
139 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
7.0
4.6
OpenGL
1.2
2.1
OpenCL
N/A
1.3
Vulkan
N/A
-
-
-
6.7
Shader Model
-
