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GPU Comparison
ATI Radeon HD 4870 vs AMD Radeon RX 6400
ATI Radeon HD 4870 vs AMD Radeon RX 6400
VS
ATI Radeon HD 4870
AMD Radeon RX 6400
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 and 4GB VRAM Radeon RX 6400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4870 's Advantages
32 additional rendering cores
AMD Radeon RX 6400 's Advantages
Released 13 years and 7 months late
Boost Clock2321MHz
Larger VRAM bandwidth (128.0GB/s vs 115.2GB/s)
Lower TDP (53W vs 150W)
Score
Benchmark
FP32 (float)
Radeon HD 4870
1.2 TFLOPS
Radeon RX 6400
+197%
3.565 TFLOPS
Radeon HD 4870
VS
Radeon RX 6400
Graphics Card
Jun 2008
Release Date
Jan 2022
Radeon R700
Generation
Navi II
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 4.0 x4
Clock Speeds
-
Base Clock
1923 MHz
-
Boost Clock
2321 MHz
900 MHz
Memory Clock
2000 MHz
Memory
512MB
Memory Size
4GB
GDDR5
Memory Type
GDDR6
256bit
Memory Bus
64bit
115.2GB/s
Bandwidth
128.0GB/s
Render Config
-
SM Count
-
10
Compute Units
12
800
Shading Units
768
40
TMUs
48
16
ROPs
32
-
Tensor Cores
-
-
RT Cores
12
16 KB (per CU)
L1 Cache
128 KB per Array
256 KB
L2 Cache
1024 KB
Theoretical Performance
12.00 GPixel/s
Pixel Rate
74.27 GPixel/s
30.00 GTexel/s
Texture Rate
111.4 GTexel/s
-
FP16 (half)
7.130 TFLOPS
1200 GFLOPS
FP32 (float)
3.565 TFLOPS
240.0 GFLOPS
FP64 (double)
222.8 GFLOPS
Graphics Processor
RV770
GPU Name
Navi 24
RV770 XT (215-0669049)
GPU Variant
Navi 24 XL (215-135000046)
TeraScale
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
55 nm
Process Size
6 nm
0.956 billion
Transistors
5.4 billion
256 mm²
Die Size
107 mm²
Board Design
150W
TDP
53W
450 W
Suggested PSU
250 W
2x DVI 1x S-Video
Outputs
1x HDMI 2.1 1x DisplayPort 1.4a
2x 6-pin
Power Connectors
None
Graphics Features
10.1 (10_1)
DirectX
12 Ultimate (12_2)
3.3
OpenGL
4.6
1.1
OpenCL
2.2
N/A
Vulkan
1.3
-
CUDA
-
4.1
Shader Model
6.6
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