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GPU Comparison
AMD Radeon RX 7800 vs AMD Radeon HD 8870 OEM
AMD Radeon RX 7800 vs AMD Radeon HD 8870 OEM
VS
AMD Radeon RX 7800
AMD Radeon HD 8870 OEM
We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 and 2GB VRAM Radeon HD 8870 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 7800 's Advantages
Released 10 years late
Boost Clock2800MHz
More VRAM (16GB vs 2GB)
Larger VRAM bandwidth (576.0GB/s vs 153.6GB/s)
2560 additional rendering cores
AMD Radeon HD 8870 OEM 's Advantages
Lower TDP (175W vs 300W)
Score
Benchmark
FP32 (float)
Radeon RX 7800
+1357%
37.32 TFLOPS
Radeon HD 8870 OEM
2.56 TFLOPS
Radeon RX 7800
VS
Radeon HD 8870 OEM
Graphics Card
Jan 2023
Release Date
Jan 2013
Navi III
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1800 MHz
Base Clock
-
2800 MHz
Boost Clock
-
2250 MHz
Memory Clock
1200 MHz
Memory
16GB
Memory Size
2GB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
256bit
576.0GB/s
Bandwidth
153.6GB/s
Render Config
-
SM Count
-
60
Compute Units
20
3840
Shading Units
1280
240
TMUs
80
128
ROPs
32
-
Tensor Cores
-
60
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per CU)
4 MB
L2 Cache
512 KB
Theoretical Performance
358.4 GPixel/s
Pixel Rate
32.00 GPixel/s
672.0 GTexel/s
Texture Rate
80.00 GTexel/s
86.02 TFLOPS
FP16 (half)
-
43.01 TFLOPS
FP32 (float)
2.560 TFLOPS
1344 GFLOPS
FP64 (double)
160.0 GFLOPS
Graphics Processor
Navi 32
GPU Name
Pitcairn
Navi 32 XT
GPU Variant
Pitcairn XT (215-0828047)
RDNA 3.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
5 nm
Process Size
28 nm
Unknown
Transistors
2.8 billion
346 mm²
Die Size
212 mm²
Board Design
300W
TDP
175W
700 W
Suggested PSU
450 W
1x HDMI 2.1a 3x DisplayPort 2.1
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
2x 8-pin
Power Connectors
2x 6-pin
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.2
OpenCL
1.2
1.3
Vulkan
1.2
-
CUDA
-
6.7
Shader Model
5.1
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