AMD Radeon HD 8870 OEM vs AMD Radeon RX 7950 XTX
GPU Specs Compare
Graphics Card
Release Date
Jan 2013
Unknown
Generation
Sea Islands
Navi III
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1200 MHz
2500 MHz
Base Clock
-
2200 MHz
Boost Clock
-
3300 MHz
Memory
Memory Size
2GB
24GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
384bit
Bandwidth
153.6GB/s
960.0GB/s
Render Config
Compute Units
20
96
Shading Units
1280
6144
TMUs
80
384
ROPs
32
192
L1 Cache
16 KB (per CU)
256 KB per Array
L2 Cache
512 KB
6 MB
RT Cores
-
96
L3 Cache
-
96 MB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
633.6 GPixel/s
Texture Rate
80.00 GTexel/s
1267 GTexel/s
FP32 (float)
2.560 TFLOPS
81.10 TFLOPS
FP64 (double)
160.0 GFLOPS
2.534 TFLOPS
FP16 (half)
-
162.2 TFLOPS
Graphics Processor
GPU Name
Pitcairn
Navi 31
GPU Variant
Pitcairn XT(215-0828047)
Navi 31 XTX+
Architecture
GCN 1.0
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
2.8 billion
57.7 billion
Die Size
212 mm²
529 mm²
Board Design
TDP
175W
355W
Suggested PSU
450 W
750 W
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
Power Connectors
2x 6-pin
2x 8-pin
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
1.2
2.2
Vulkan
1.2
1.3
Shader Model
5.1
6.7