Home GPU Comparison ATI Radeon HD 4860 vs ATI Radeon HD 3870 X2

ATI Radeon HD 4860 vs ATI Radeon HD 3870 X2

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4860 and 512MB VRAM Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4860 's Advantages
Released 1 years and 8 months late
Larger VRAM bandwidth (96.00GB/s vs 57.66GB/s)
320 additional rendering cores
Lower TDP (130W vs 165W)

Score

Benchmark

FP32 (float)
Radeon HD 4860 +69%
0.896 TFLOPS
Radeon HD 3870 X2
0.528 TFLOPS
VS

Graphics Card

Sep 2009
Release Date
Jan 2008
Radeon R700
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
750 MHz
Memory Clock
901 MHz

Memory

512MB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
256bit
96.00GB/s
Bandwidth
57.66GB/s

Render Config

8
Compute Units
4
-
-
-
640
Shading Units
320
32
TMUs
16
16
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

11.20 GPixel/s
Pixel Rate
13.20 GPixel/s
22.40 GTexel/s
Texture Rate
13.20 GTexel/s
-
-
-
896.0 GFLOPS
FP32 (float)
528.0 GFLOPS
179.2 GFLOPS
FP64 (double)
105.6 GFLOPS

Board Design

130W
TDP
165W
300 W
Suggested PSU
450 W
2x DVI 1x S-Video
Outputs
2x DVI 1x S-Video
2x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin

Graphics Processor

RV790
GPU Name
R680
RV790 GT
GPU Variant
R680 XT (215-0708017)
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
0.959 billion
Transistors
0.666 billion
282 mm²
Die Size
192 mm²

Graphics Features

10.1 (10_1)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3 (full) 4.0 (partial)
1.1
OpenCL
N/A
N/A
Vulkan
N/A
-
-
-
4.1
Shader Model
4.1

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