AMD Radeon R9 285X vs AMD Radeon RX 7700
GPU Specs Compare
Graphics Card
Release Date
Unknown
Sep 2025
Generation
Volcanic Islands
Navi III
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1375 MHz
2430 MHz
Base Clock
-
1900 MHz
Boost Clock
-
2600 MHz
Memory
Memory Size
3GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
384bit
256bit
Bandwidth
264.0GB/s
622.1GB/s
Render Config
Compute Units
32
40
Shading Units
2048
2560
TMUs
128
160
ROPs
32
96
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
768 KB
2 MB
RT Cores
-
40
L3 Cache
-
64 MB
Theoretical Performance
Pixel Rate
32.06 GPixel/s
249.6 GPixel/s
Texture Rate
128.3 GTexel/s
416.0 GTexel/s
FP32 (float)
4.104 TFLOPS
26.62 TFLOPS
FP16 (half)
-
53.25 TFLOPS
FP64 (double)
-
832.0 GFLOPS
Graphics Processor
GPU Name
Tonga
Navi 32
GPU Variant
Tonga XT(215-0851313)
Navi 32
Architecture
GCN 3.0
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
5 billion
28.1 billion
Die Size
366 mm²
346 mm²
Board Design
TDP
200W
200W
Suggested PSU
550 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
Power Connectors
1x 6-pin + 1x 8-pin
1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.0
2.2
Vulkan
1.2
1.3
Shader Model
6.3
6.8