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GPU Comparison
AMD Radeon HD 7870 XT vs ATI Radeon HD 4650 AGP
AMD Radeon HD 7870 XT vs ATI Radeon HD 4650 AGP
VS
AMD Radeon HD 7870 XT
ATI Radeon HD 4650 AGP
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 512MB VRAM Radeon HD 4650 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7870 XT 's Advantages
Released 4 years and 2 months late
Boost Clock975MHz
Larger VRAM bandwidth (192.0GB/s vs 12.80GB/s)
1216 additional rendering cores
ATI Radeon HD 4650 AGP 's Advantages
Lower TDP (48W vs 185W)
Score
Benchmark
FP32 (float)
Radeon HD 7870 XT
+679%
2.995 TFLOPS
Radeon HD 4650 AGP
0.384 TFLOPS
Radeon HD 7870 XT
VS
Radeon HD 4650 AGP
Graphics Card
Nov 2012
Release Date
Sep 2008
Southern Islands
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
AGP 8x
Clock Speeds
925 MHz
Base Clock
-
975 MHz
Boost Clock
-
1500 MHz
Memory Clock
400 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
DDR2
256bit
Memory Bus
128bit
192.0GB/s
Bandwidth
12.80GB/s
Render Config
-
SM Count
-
24
Compute Units
4
1536
Shading Units
320
96
TMUs
32
32
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
128 KB
Theoretical Performance
31.20 GPixel/s
Pixel Rate
4.800 GPixel/s
93.60 GTexel/s
Texture Rate
19.20 GTexel/s
-
FP16 (half)
-
2.995 TFLOPS
FP32 (float)
384.0 GFLOPS
748.8 GFLOPS
FP64 (double)
-
Graphics Processor
Tahiti
GPU Name
RV730
Tahiti LE (215-0821122)
GPU Variant
RV730 PRO (215-0719056)
GCN 1.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
4.313 billion
Transistors
0.514 billion
352 mm²
Die Size
146 mm²
Board Design
185W
TDP
48W
450 W
Suggested PSU
200 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
2x 6-pin
Power Connectors
-
Graphics Features
12 (11_1)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
-
5.1
Shader Model
4.1
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