Home GPU Comparison NVIDIA GeForce GTX 780 Ti Engineering Sample vs ATI Radeon HD 4870 Mac Edition

NVIDIA GeForce GTX 780 Ti Engineering Sample vs ATI Radeon HD 4870 Mac Edition

We compared two Desktop platform GPUs: 3GB VRAM GeForce GTX 780 Ti Engineering Sample and 512MB VRAM Radeon HD 4870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 Ti Engineering Sample 's Advantages
Boost Clock928MHz
More VRAM (3GB vs 512GB)
Larger VRAM bandwidth (336.6GB/s vs 108.8GB/s)
2080 additional rendering cores
ATI Radeon HD 4870 Mac Edition 's Advantages
Lower TDP (150W vs 250W)

Score

Benchmark

FP32 (float)
GeForce GTX 780 Ti Engineering Sample +345%
5.345 TFLOPS
Radeon HD 4870 Mac Edition
1.2 TFLOPS
VS

Graphics Card

Unknown
Release Date
Jan 2009
GeForce 700
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

875 MHz
Base Clock
-
928 MHz
Boost Clock
-
1753 MHz
Memory Clock
850 MHz

Memory

3GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
256bit
336.6GB/s
Bandwidth
108.8GB/s

Render Config

-
Compute Units
10
-
-
-
2880
Shading Units
800
240
TMUs
40
48
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
1536 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

55.68 GPixel/s
Pixel Rate
12.00 GPixel/s
222.7 GTexel/s
Texture Rate
30.00 GTexel/s
-
-
-
5.345 TFLOPS
FP32 (float)
1200 GFLOPS
222.7 GFLOPS
FP64 (double)
240.0 GFLOPS

Board Design

250W
TDP
150W
600 W
Suggested PSU
450 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x mini-DisplayPort 1.0
1x 6-pin + 1x 8-pin
Power Connectors
2x 6-pin

Graphics Processor

GK180
GPU Name
RV770
GK180-425-A1
GPU Variant
RV770 XT Mac (215-0669080)
Kepler
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
7.08 billion
Transistors
0.956 billion
561 mm²
Die Size
256 mm²

Graphics Features

12 (11_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
3.0
OpenCL
1.1
1.2.175
Vulkan
N/A
3.5
CUDA
-
5.1
Shader Model
4.1

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