Home GPU Comparison ATI Radeon HD 4850 vs ATI Radeon HD 2600 XT Mac Edition

ATI Radeon HD 4850 vs ATI Radeon HD 2600 XT Mac Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4850 and 256MB VRAM Radeon HD 2600 XT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4850 's Advantages
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (63.55GB/s vs 25.60GB/s)
680 additional rendering cores
ATI Radeon HD 2600 XT Mac Edition 's Advantages
Lower TDP (45W vs 110W)

Score

Benchmark

FP32 (float)
Radeon HD 4850 +495%
1 TFLOPS
Radeon HD 2600 XT Mac Edition
0.168 TFLOPS
VS

Graphics Card

Jun 2008
Release Date
Feb 2008
Radeon R700
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 1.0 x16

Clock Speeds

-
-
-
-
-
-
993 MHz
Memory Clock
800 MHz

Memory

512MB
Memory Size
256MB
GDDR3
Memory Type
GDDR3
256bit
Memory Bus
128bit
63.55GB/s
Bandwidth
25.60GB/s

Render Config

10
Compute Units
3
-
-
-
800
Shading Units
120
40
TMUs
8
16
ROPs
4
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
64 KB
-
-
-

Theoretical Performance

10.00 GPixel/s
Pixel Rate
2.800 GPixel/s
25.00 GTexel/s
Texture Rate
5.600 GTexel/s
-
-
-
1000 GFLOPS
FP32 (float)
168.0 GFLOPS
200.0 GFLOPS
FP64 (double)
-

Board Design

110W
TDP
45W
300 W
Suggested PSU
200 W
2x DVI 1x S-Video
Outputs
2x DVI
1x 6-pin
Power Connectors
None

Graphics Processor

RV770
GPU Name
RV630
RV770 PRO (215-0669065)
GPU Variant
-
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
65 nm
0.956 billion
Transistors
0.39 billion
256 mm²
Die Size
153 mm²

Graphics Features

10.1 (10_1)
DirectX
10.0 (10_0)
3.3
OpenGL
3.3
1.1
OpenCL
N/A
N/A
Vulkan
N/A
-
-
-
4.1
Shader Model
4.0

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