AMD Radeon HD 6990 vs AMD Radeon RX 9060
GPU Specs Compare
Graphics Card
Release Date
Mar 2011
Aug 2025
Generation
Northern Islands
Navi IV
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 5.0 x16
Clock Speeds
Memory Clock
1250 MHz
2518 MHz
Base Clock
-
1700 MHz
Boost Clock
-
2990 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
128bit
Bandwidth
160.0GB/s
322.3GB/s
Render Config
Compute Units
24
28
Shading Units
1536
1792
TMUs
96
112
ROPs
32
64
L1 Cache
8 KB (per CU)
-
L2 Cache
512 KB
4 MB
RT Cores
-
28
L3 Cache
-
32 MB
Theoretical Performance
Pixel Rate
26.56 GPixel/s
191.4 GPixel/s
Texture Rate
79.68 GTexel/s
334.9 GTexel/s
FP32 (float)
2.550 TFLOPS
21.43 TFLOPS
FP64 (double)
637.4 GFLOPS
669.8 GFLOPS
FP16 (half)
-
42.86 TFLOPS
Graphics Processor
GPU Name
Antilles
Navi 44
GPU Variant
Antilles XT(215-0807027)
Navi 44
Architecture
TeraScale 3
RDNA 4.0
Foundry
TSMC
TSMC
Process Size
40 nm
4 nm
Transistors
2.64 billion
29.7 billion
Die Size
389 mm²
199 mm²
Board Design
TDP
375W
132W
Suggested PSU
750 W
300 W
Outputs
1x DVI4x mini-DisplayPort 1.2
1x HDMI 2.1b2x DisplayPort 2.1a
Power Connectors
2x 8-pin
1x 8-pin
Graphics Features
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenGL
4.4
4.6
OpenCL
1.2
2.2
Vulkan
N/A
1.3
Shader Model
5.0
6.8