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GPU Comparison
AMD Radeon RX 6600 XT vs AMD Radeon R9 290X2
AMD Radeon RX 6600 XT vs AMD Radeon R9 290X2
VS
AMD Radeon RX 6600 XT
AMD Radeon R9 290X2
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 XT and 4GB VRAM Radeon R9 290X2 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 7 years and 1 months late
Boost Clock2589MHz
More VRAM (8GB vs 4GB)
Lower TDP (160W vs 580W)
AMD Radeon R9 290X2 's Advantages
Larger VRAM bandwidth (345.6GB/s vs 256.0GB/s)
768 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon RX 6600 XT
+88%
10.6 TFLOPS
Radeon R9 290X2
5.632 TFLOPS
Radeon RX 6600 XT
VS
Radeon R9 290X2
Graphics Card
Jul 2021
Release Date
Jun 2014
Navi II
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 4.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
1968 MHz
Base Clock
-
2589 MHz
Boost Clock
-
2000 MHz
Memory Clock
1350 MHz
Memory
8GB
Memory Size
4GB
GDDR6
Memory Type
GDDR5
128bit
Memory Bus
512bit
256.0GB/s
Bandwidth
345.6GB/s
Render Config
-
SM Count
-
32
Compute Units
44
2048
Shading Units
2816
128
TMUs
176
64
ROPs
64
-
Tensor Cores
-
32
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
1024 KB
Theoretical Performance
165.7 GPixel/s
Pixel Rate
64.00 GPixel/s
331.4 GTexel/s
Texture Rate
176.0 GTexel/s
21.21 TFLOPS
FP16 (half)
-
10.60 TFLOPS
FP32 (float)
5.632 TFLOPS
662.8 GFLOPS
FP64 (double)
704.0 GFLOPS
Graphics Processor
Navi 23
GPU Name
Hawaii
Navi 23 XT (215-130000006)
GPU Variant
Hawaii XT (215-0852000)
RDNA 2.0
Architecture
GCN 2.0
TSMC
Foundry
TSMC
7 nm
Process Size
28 nm
11.06 billion
Transistors
6.2 billion
237 mm²
Die Size
438 mm²
Board Design
160W
TDP
580W
450 W
Suggested PSU
950 W
1x HDMI 2.1 3x DisplayPort 1.4a
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 8-pin
Power Connectors
4x 8-pin
Graphics Features
12 Ultimate (12_2)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.0
1.3
Vulkan
1.2
-
CUDA
-
6.7
Shader Model
6.3
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