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GPU Comparison
AMD Radeon R9 290X vs AMD Radeon RX 6600 XT
AMD Radeon R9 290X vs AMD Radeon RX 6600 XT
VS
AMD Radeon R9 290X
AMD Radeon RX 6600 XT
We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 290X and 8GB VRAM Radeon RX 6600 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 290X 's Advantages
Larger VRAM bandwidth (320.0GB/s vs 256.0GB/s)
768 additional rendering cores
AMD Radeon RX 6600 XT 's Advantages
Released 7 years and 9 months late
Boost Clock2589MHz
More VRAM (8GB vs 4GB)
Lower TDP (160W vs 290W)
Score
Benchmark
FP32 (float)
Radeon R9 290X
5.632 TFLOPS
Radeon RX 6600 XT
+88%
10.6 TFLOPS
3DMark Time Spy
Radeon R9 290X
3925
Radeon RX 6600 XT
+144%
9579
Radeon R9 290X
VS
Radeon RX 6600 XT
Graphics Card
Oct 2013
Release Date
Jul 2021
Volcanic Islands
Generation
Navi II
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x8
Clock Speeds
-
Base Clock
1968 MHz
-
Boost Clock
2589 MHz
1250 MHz
Memory Clock
2000 MHz
Memory
4GB
Memory Size
8GB
GDDR5
Memory Type
GDDR6
512bit
Memory Bus
128bit
320.0GB/s
Bandwidth
256.0GB/s
Render Config
44
Compute Units
32
-
-
-
2816
Shading Units
2048
176
TMUs
128
64
ROPs
64
-
-
-
-
RT Cores
32
16 KB (per CU)
L1 Cache
128 KB per Array
1024 KB
L2 Cache
2 MB
-
L3 Cache
32 MB
Theoretical Performance
64.00 GPixel/s
Pixel Rate
165.7 GPixel/s
176.0 GTexel/s
Texture Rate
331.4 GTexel/s
-
FP16 (half)
21.21 TFLOPS
5.632 TFLOPS
FP32 (float)
10.60 TFLOPS
704.0 GFLOPS
FP64 (double)
662.8 GFLOPS
Board Design
290W
TDP
160W
600 W
Suggested PSU
450 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x HDMI 2.1 3x DisplayPort 1.4a
1x 6-pin + 1x 8-pin
Power Connectors
1x 8-pin
Graphics Processor
Hawaii
GPU Name
Navi 23
Hawaii XT (215-0852000)
GPU Variant
Navi 23 XT (215-130000006)
GCN 2.0
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
7 nm
6.2 billion
Transistors
11.06 billion
438 mm²
Die Size
237 mm²
Graphics Features
12 (12_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.0
OpenCL
2.1
1.2
Vulkan
1.3
-
-
-
6.3
Shader Model
6.7
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